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authorRoland Reichwein <mail@reichwein.it>2021-02-06 17:41:09 +0100
committerRoland Reichwein <mail@reichwein.it>2021-02-06 17:41:09 +0100
commit21f54c28f899f5510c8d92fe7393b45f91e2b839 (patch)
tree4cf9479733e784643f7bc39fc2c52779bcefd6dd /googlemock/include/gmock/gmock-matchers.h
parent58eac47439c2de9e6b460f5ac8dc4a0c9fa9872f (diff)
Cleanup: Replace google test with boost test
Diffstat (limited to 'googlemock/include/gmock/gmock-matchers.h')
-rw-r--r--googlemock/include/gmock/gmock-matchers.h5282
1 files changed, 0 insertions, 5282 deletions
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
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--- a/googlemock/include/gmock/gmock-matchers.h
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@@ -1,5282 +0,0 @@
-// Copyright 2007, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-// Google Mock - a framework for writing C++ mock classes.
-//
-// This file implements some commonly used argument matchers. More
-// matchers can be defined by the user implementing the
-// MatcherInterface<T> interface if necessary.
-
-// GOOGLETEST_CM0002 DO NOT DELETE
-
-#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
-#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
-
-#include <math.h>
-#include <algorithm>
-#include <iterator>
-#include <limits>
-#include <ostream> // NOLINT
-#include <sstream>
-#include <string>
-#include <utility>
-#include <vector>
-#include "gtest/gtest.h"
-#include "gmock/internal/gmock-internal-utils.h"
-#include "gmock/internal/gmock-port.h"
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-# include <initializer_list> // NOLINT -- must be after gtest.h
-#endif
-
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(
- 4251 5046 /* class A needs to have dll-interface to be used by clients of
- class B */
- /* Symbol involving type with internal linkage not defined */)
-
-namespace testing {
-
-// To implement a matcher Foo for type T, define:
-// 1. a class FooMatcherImpl that implements the
-// MatcherInterface<T> interface, and
-// 2. a factory function that creates a Matcher<T> object from a
-// FooMatcherImpl*.
-//
-// The two-level delegation design makes it possible to allow a user
-// to write "v" instead of "Eq(v)" where a Matcher is expected, which
-// is impossible if we pass matchers by pointers. It also eases
-// ownership management as Matcher objects can now be copied like
-// plain values.
-
-// MatchResultListener is an abstract class. Its << operator can be
-// used by a matcher to explain why a value matches or doesn't match.
-//
-// FIXME: add method
-// bool InterestedInWhy(bool result) const;
-// to indicate whether the listener is interested in why the match
-// result is 'result'.
-class MatchResultListener {
- public:
- // Creates a listener object with the given underlying ostream. The
- // listener does not own the ostream, and does not dereference it
- // in the constructor or destructor.
- explicit MatchResultListener(::std::ostream* os) : stream_(os) {}
- virtual ~MatchResultListener() = 0; // Makes this class abstract.
-
- // Streams x to the underlying ostream; does nothing if the ostream
- // is NULL.
- template <typename T>
- MatchResultListener& operator<<(const T& x) {
- if (stream_ != NULL)
- *stream_ << x;
- return *this;
- }
-
- // Returns the underlying ostream.
- ::std::ostream* stream() { return stream_; }
-
- // Returns true iff the listener is interested in an explanation of
- // the match result. A matcher's MatchAndExplain() method can use
- // this information to avoid generating the explanation when no one
- // intends to hear it.
- bool IsInterested() const { return stream_ != NULL; }
-
- private:
- ::std::ostream* const stream_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener);
-};
-
-inline MatchResultListener::~MatchResultListener() {
-}
-
-// An instance of a subclass of this knows how to describe itself as a
-// matcher.
-class MatcherDescriberInterface {
- public:
- virtual ~MatcherDescriberInterface() {}
-
- // Describes this matcher to an ostream. The function should print
- // a verb phrase that describes the property a value matching this
- // matcher should have. The subject of the verb phrase is the value
- // being matched. For example, the DescribeTo() method of the Gt(7)
- // matcher prints "is greater than 7".
- virtual void DescribeTo(::std::ostream* os) const = 0;
-
- // Describes the negation of this matcher to an ostream. For
- // example, if the description of this matcher is "is greater than
- // 7", the negated description could be "is not greater than 7".
- // You are not required to override this when implementing
- // MatcherInterface, but it is highly advised so that your matcher
- // can produce good error messages.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "not (";
- DescribeTo(os);
- *os << ")";
- }
-};
-
-// The implementation of a matcher.
-template <typename T>
-class MatcherInterface : public MatcherDescriberInterface {
- public:
- // Returns true iff the matcher matches x; also explains the match
- // result to 'listener' if necessary (see the next paragraph), in
- // the form of a non-restrictive relative clause ("which ...",
- // "whose ...", etc) that describes x. For example, the
- // MatchAndExplain() method of the Pointee(...) matcher should
- // generate an explanation like "which points to ...".
- //
- // Implementations of MatchAndExplain() should add an explanation of
- // the match result *if and only if* they can provide additional
- // information that's not already present (or not obvious) in the
- // print-out of x and the matcher's description. Whether the match
- // succeeds is not a factor in deciding whether an explanation is
- // needed, as sometimes the caller needs to print a failure message
- // when the match succeeds (e.g. when the matcher is used inside
- // Not()).
- //
- // For example, a "has at least 10 elements" matcher should explain
- // what the actual element count is, regardless of the match result,
- // as it is useful information to the reader; on the other hand, an
- // "is empty" matcher probably only needs to explain what the actual
- // size is when the match fails, as it's redundant to say that the
- // size is 0 when the value is already known to be empty.
- //
- // You should override this method when defining a new matcher.
- //
- // It's the responsibility of the caller (Google Mock) to guarantee
- // that 'listener' is not NULL. This helps to simplify a matcher's
- // implementation when it doesn't care about the performance, as it
- // can talk to 'listener' without checking its validity first.
- // However, in order to implement dummy listeners efficiently,
- // listener->stream() may be NULL.
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
-
- // Inherits these methods from MatcherDescriberInterface:
- // virtual void DescribeTo(::std::ostream* os) const = 0;
- // virtual void DescribeNegationTo(::std::ostream* os) const;
-};
-
-namespace internal {
-
-// Converts a MatcherInterface<T> to a MatcherInterface<const T&>.
-template <typename T>
-class MatcherInterfaceAdapter : public MatcherInterface<const T&> {
- public:
- explicit MatcherInterfaceAdapter(const MatcherInterface<T>* impl)
- : impl_(impl) {}
- virtual ~MatcherInterfaceAdapter() { delete impl_; }
-
- virtual void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- impl_->DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(const T& x,
- MatchResultListener* listener) const {
- return impl_->MatchAndExplain(x, listener);
- }
-
- private:
- const MatcherInterface<T>* const impl_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(MatcherInterfaceAdapter);
-};
-
-} // namespace internal
-
-// A match result listener that stores the explanation in a string.
-class StringMatchResultListener : public MatchResultListener {
- public:
- StringMatchResultListener() : MatchResultListener(&ss_) {}
-
- // Returns the explanation accumulated so far.
- std::string str() const { return ss_.str(); }
-
- // Clears the explanation accumulated so far.
- void Clear() { ss_.str(""); }
-
- private:
- ::std::stringstream ss_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener);
-};
-
-namespace internal {
-
-struct AnyEq {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a == b; }
-};
-struct AnyNe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a != b; }
-};
-struct AnyLt {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a < b; }
-};
-struct AnyGt {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a > b; }
-};
-struct AnyLe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a <= b; }
-};
-struct AnyGe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a >= b; }
-};
-
-// A match result listener that ignores the explanation.
-class DummyMatchResultListener : public MatchResultListener {
- public:
- DummyMatchResultListener() : MatchResultListener(NULL) {}
-
- private:
- GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener);
-};
-
-// A match result listener that forwards the explanation to a given
-// ostream. The difference between this and MatchResultListener is
-// that the former is concrete.
-class StreamMatchResultListener : public MatchResultListener {
- public:
- explicit StreamMatchResultListener(::std::ostream* os)
- : MatchResultListener(os) {}
-
- private:
- GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener);
-};
-
-// An internal class for implementing Matcher<T>, which will derive
-// from it. We put functionalities common to all Matcher<T>
-// specializations here to avoid code duplication.
-template <typename T>
-class MatcherBase {
- public:
- // Returns true iff the matcher matches x; also explains the match
- // result to 'listener'.
- bool MatchAndExplain(GTEST_REFERENCE_TO_CONST_(T) x,
- MatchResultListener* listener) const {
- return impl_->MatchAndExplain(x, listener);
- }
-
- // Returns true iff this matcher matches x.
- bool Matches(GTEST_REFERENCE_TO_CONST_(T) x) const {
- DummyMatchResultListener dummy;
- return MatchAndExplain(x, &dummy);
- }
-
- // Describes this matcher to an ostream.
- void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
-
- // Describes the negation of this matcher to an ostream.
- void DescribeNegationTo(::std::ostream* os) const {
- impl_->DescribeNegationTo(os);
- }
-
- // Explains why x matches, or doesn't match, the matcher.
- void ExplainMatchResultTo(GTEST_REFERENCE_TO_CONST_(T) x,
- ::std::ostream* os) const {
- StreamMatchResultListener listener(os);
- MatchAndExplain(x, &listener);
- }
-
- // Returns the describer for this matcher object; retains ownership
- // of the describer, which is only guaranteed to be alive when
- // this matcher object is alive.
- const MatcherDescriberInterface* GetDescriber() const {
- return impl_.get();
- }
-
- protected:
- MatcherBase() {}
-
- // Constructs a matcher from its implementation.
- explicit MatcherBase(
- const MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)>* impl)
- : impl_(impl) {}
-
- template <typename U>
- explicit MatcherBase(
- const MatcherInterface<U>* impl,
- typename internal::EnableIf<
- !internal::IsSame<U, GTEST_REFERENCE_TO_CONST_(U)>::value>::type* =
- NULL)
- : impl_(new internal::MatcherInterfaceAdapter<U>(impl)) {}
-
- virtual ~MatcherBase() {}
-
- private:
- // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar
- // interfaces. The former dynamically allocates a chunk of memory
- // to hold the reference count, while the latter tracks all
- // references using a circular linked list without allocating
- // memory. It has been observed that linked_ptr performs better in
- // typical scenarios. However, shared_ptr can out-perform
- // linked_ptr when there are many more uses of the copy constructor
- // than the default constructor.
- //
- // If performance becomes a problem, we should see if using
- // shared_ptr helps.
- ::testing::internal::linked_ptr<
- const MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)> >
- impl_;
-};
-
-} // namespace internal
-
-// A Matcher<T> is a copyable and IMMUTABLE (except by assignment)
-// object that can check whether a value of type T matches. The
-// implementation of Matcher<T> is just a linked_ptr to const
-// MatcherInterface<T>, so copying is fairly cheap. Don't inherit
-// from Matcher!
-template <typename T>
-class Matcher : public internal::MatcherBase<T> {
- public:
- // Constructs a null matcher. Needed for storing Matcher objects in STL
- // containers. A default-constructed matcher is not yet initialized. You
- // cannot use it until a valid value has been assigned to it.
- explicit Matcher() {} // NOLINT
-
- // Constructs a matcher from its implementation.
- explicit Matcher(const MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)>* impl)
- : internal::MatcherBase<T>(impl) {}
-
- template <typename U>
- explicit Matcher(const MatcherInterface<U>* impl,
- typename internal::EnableIf<!internal::IsSame<
- U, GTEST_REFERENCE_TO_CONST_(U)>::value>::type* = NULL)
- : internal::MatcherBase<T>(impl) {}
-
- // Implicit constructor here allows people to write
- // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes
- Matcher(T value); // NOLINT
-};
-
-// The following two specializations allow the user to write str
-// instead of Eq(str) and "foo" instead of Eq("foo") when a std::string
-// matcher is expected.
-template <>
-class GTEST_API_ Matcher<const std::string&>
- : public internal::MatcherBase<const std::string&> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const std::string&>* impl)
- : internal::MatcherBase<const std::string&>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a std::string object.
- Matcher(const std::string& s); // NOLINT
-
-#if GTEST_HAS_GLOBAL_STRING
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-#endif // GTEST_HAS_GLOBAL_STRING
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-
-template <>
-class GTEST_API_ Matcher<std::string>
- : public internal::MatcherBase<std::string> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const std::string&>* impl)
- : internal::MatcherBase<std::string>(impl) {}
- explicit Matcher(const MatcherInterface<std::string>* impl)
- : internal::MatcherBase<std::string>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a string object.
- Matcher(const std::string& s); // NOLINT
-
-#if GTEST_HAS_GLOBAL_STRING
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-#endif // GTEST_HAS_GLOBAL_STRING
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-
-#if GTEST_HAS_GLOBAL_STRING
-// The following two specializations allow the user to write str
-// instead of Eq(str) and "foo" instead of Eq("foo") when a ::string
-// matcher is expected.
-template <>
-class GTEST_API_ Matcher<const ::string&>
- : public internal::MatcherBase<const ::string&> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const ::string&>* impl)
- : internal::MatcherBase<const ::string&>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a std::string object.
- Matcher(const std::string& s); // NOLINT
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-
-template <>
-class GTEST_API_ Matcher< ::string>
- : public internal::MatcherBase< ::string> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const ::string&>* impl)
- : internal::MatcherBase< ::string>(impl) {}
- explicit Matcher(const MatcherInterface< ::string>* impl)
- : internal::MatcherBase< ::string>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a std::string object.
- Matcher(const std::string& s); // NOLINT
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-#endif // GTEST_HAS_GLOBAL_STRING
-
-#if GTEST_HAS_ABSL
-// The following two specializations allow the user to write str
-// instead of Eq(str) and "foo" instead of Eq("foo") when a absl::string_view
-// matcher is expected.
-template <>
-class GTEST_API_ Matcher<const absl::string_view&>
- : public internal::MatcherBase<const absl::string_view&> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const absl::string_view&>* impl)
- : internal::MatcherBase<const absl::string_view&>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a std::string object.
- Matcher(const std::string& s); // NOLINT
-
-#if GTEST_HAS_GLOBAL_STRING
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-#endif // GTEST_HAS_GLOBAL_STRING
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-
- // Allows the user to pass absl::string_views directly.
- Matcher(absl::string_view s); // NOLINT
-};
-
-template <>
-class GTEST_API_ Matcher<absl::string_view>
- : public internal::MatcherBase<absl::string_view> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const absl::string_view&>* impl)
- : internal::MatcherBase<absl::string_view>(impl) {}
- explicit Matcher(const MatcherInterface<absl::string_view>* impl)
- : internal::MatcherBase<absl::string_view>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a std::string object.
- Matcher(const std::string& s); // NOLINT
-
-#if GTEST_HAS_GLOBAL_STRING
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a ::string object.
- Matcher(const ::string& s); // NOLINT
-#endif // GTEST_HAS_GLOBAL_STRING
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-
- // Allows the user to pass absl::string_views directly.
- Matcher(absl::string_view s); // NOLINT
-};
-#endif // GTEST_HAS_ABSL
-
-// Prints a matcher in a human-readable format.
-template <typename T>
-std::ostream& operator<<(std::ostream& os, const Matcher<T>& matcher) {
- matcher.DescribeTo(&os);
- return os;
-}
-
-// The PolymorphicMatcher class template makes it easy to implement a
-// polymorphic matcher (i.e. a matcher that can match values of more
-// than one type, e.g. Eq(n) and NotNull()).
-//
-// To define a polymorphic matcher, a user should provide an Impl
-// class that has a DescribeTo() method and a DescribeNegationTo()
-// method, and define a member function (or member function template)
-//
-// bool MatchAndExplain(const Value& value,
-// MatchResultListener* listener) const;
-//
-// See the definition of NotNull() for a complete example.
-template <class Impl>
-class PolymorphicMatcher {
- public:
- explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {}
-
- // Returns a mutable reference to the underlying matcher
- // implementation object.
- Impl& mutable_impl() { return impl_; }
-
- // Returns an immutable reference to the underlying matcher
- // implementation object.
- const Impl& impl() const { return impl_; }
-
- template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new MonomorphicImpl<GTEST_REFERENCE_TO_CONST_(T)>(impl_));
- }
-
- private:
- template <typename T>
- class MonomorphicImpl : public MatcherInterface<T> {
- public:
- explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- impl_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- impl_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
- return impl_.MatchAndExplain(x, listener);
- }
-
- private:
- const Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
- };
-
- Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher);
-};
-
-// Creates a matcher from its implementation. This is easier to use
-// than the Matcher<T> constructor as it doesn't require you to
-// explicitly write the template argument, e.g.
-//
-// MakeMatcher(foo);
-// vs
-// Matcher<const string&>(foo);
-template <typename T>
-inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) {
- return Matcher<T>(impl);
-}
-
-// Creates a polymorphic matcher from its implementation. This is
-// easier to use than the PolymorphicMatcher<Impl> constructor as it
-// doesn't require you to explicitly write the template argument, e.g.
-//
-// MakePolymorphicMatcher(foo);
-// vs
-// PolymorphicMatcher<TypeOfFoo>(foo);
-template <class Impl>
-inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) {
- return PolymorphicMatcher<Impl>(impl);
-}
-
-// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
-// and MUST NOT BE USED IN USER CODE!!!
-namespace internal {
-
-// The MatcherCastImpl class template is a helper for implementing
-// MatcherCast(). We need this helper in order to partially
-// specialize the implementation of MatcherCast() (C++ allows
-// class/struct templates to be partially specialized, but not
-// function templates.).
-
-// This general version is used when MatcherCast()'s argument is a
-// polymorphic matcher (i.e. something that can be converted to a
-// Matcher but is not one yet; for example, Eq(value)) or a value (for
-// example, "hello").
-template <typename T, typename M>
-class MatcherCastImpl {
- public:
- static Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
- // M can be a polymorphic matcher, in which case we want to use
- // its conversion operator to create Matcher<T>. Or it can be a value
- // that should be passed to the Matcher<T>'s constructor.
- //
- // We can't call Matcher<T>(polymorphic_matcher_or_value) when M is a
- // polymorphic matcher because it'll be ambiguous if T has an implicit
- // constructor from M (this usually happens when T has an implicit
- // constructor from any type).
- //
- // It won't work to unconditionally implict_cast
- // polymorphic_matcher_or_value to Matcher<T> because it won't trigger
- // a user-defined conversion from M to T if one exists (assuming M is
- // a value).
- return CastImpl(
- polymorphic_matcher_or_value,
- BooleanConstant<
- internal::ImplicitlyConvertible<M, Matcher<T> >::value>(),
- BooleanConstant<
- internal::ImplicitlyConvertible<M, T>::value>());
- }
-
- private:
- template <bool Ignore>
- static Matcher<T> CastImpl(const M& polymorphic_matcher_or_value,
- BooleanConstant<true> /* convertible_to_matcher */,
- BooleanConstant<Ignore>) {
- // M is implicitly convertible to Matcher<T>, which means that either
- // M is a polymorphic matcher or Matcher<T> has an implicit constructor
- // from M. In both cases using the implicit conversion will produce a
- // matcher.
- //
- // Even if T has an implicit constructor from M, it won't be called because
- // creating Matcher<T> would require a chain of two user-defined conversions
- // (first to create T from M and then to create Matcher<T> from T).
- return polymorphic_matcher_or_value;
- }
-
- // M can't be implicitly converted to Matcher<T>, so M isn't a polymorphic
- // matcher. It's a value of a type implicitly convertible to T. Use direct
- // initialization to create a matcher.
- static Matcher<T> CastImpl(
- const M& value, BooleanConstant<false> /* convertible_to_matcher */,
- BooleanConstant<true> /* convertible_to_T */) {
- return Matcher<T>(ImplicitCast_<T>(value));
- }
-
- // M can't be implicitly converted to either Matcher<T> or T. Attempt to use
- // polymorphic matcher Eq(value) in this case.
- //
- // Note that we first attempt to perform an implicit cast on the value and
- // only fall back to the polymorphic Eq() matcher afterwards because the
- // latter calls bool operator==(const Lhs& lhs, const Rhs& rhs) in the end
- // which might be undefined even when Rhs is implicitly convertible to Lhs
- // (e.g. std::pair<const int, int> vs. std::pair<int, int>).
- //
- // We don't define this method inline as we need the declaration of Eq().
- static Matcher<T> CastImpl(
- const M& value, BooleanConstant<false> /* convertible_to_matcher */,
- BooleanConstant<false> /* convertible_to_T */);
-};
-
-// This more specialized version is used when MatcherCast()'s argument
-// is already a Matcher. This only compiles when type T can be
-// statically converted to type U.
-template <typename T, typename U>
-class MatcherCastImpl<T, Matcher<U> > {
- public:
- static Matcher<T> Cast(const Matcher<U>& source_matcher) {
- return Matcher<T>(new Impl(source_matcher));
- }
-
- private:
- class Impl : public MatcherInterface<T> {
- public:
- explicit Impl(const Matcher<U>& source_matcher)
- : source_matcher_(source_matcher) {}
-
- // We delegate the matching logic to the source matcher.
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
-#if GTEST_LANG_CXX11
- using FromType = typename std::remove_cv<typename std::remove_pointer<
- typename std::remove_reference<T>::type>::type>::type;
- using ToType = typename std::remove_cv<typename std::remove_pointer<
- typename std::remove_reference<U>::type>::type>::type;
- // Do not allow implicitly converting base*/& to derived*/&.
- static_assert(
- // Do not trigger if only one of them is a pointer. That implies a
- // regular conversion and not a down_cast.
- (std::is_pointer<typename std::remove_reference<T>::type>::value !=
- std::is_pointer<typename std::remove_reference<U>::type>::value) ||
- std::is_same<FromType, ToType>::value ||
- !std::is_base_of<FromType, ToType>::value,
- "Can't implicitly convert from <base> to <derived>");
-#endif // GTEST_LANG_CXX11
-
- return source_matcher_.MatchAndExplain(static_cast<U>(x), listener);
- }
-
- virtual void DescribeTo(::std::ostream* os) const {
- source_matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- source_matcher_.DescribeNegationTo(os);
- }
-
- private:
- const Matcher<U> source_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-};
-
-// This even more specialized version is used for efficiently casting
-// a matcher to its own type.
-template <typename T>
-class MatcherCastImpl<T, Matcher<T> > {
- public:
- static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; }
-};
-
-} // namespace internal
-
-// In order to be safe and clear, casting between different matcher
-// types is done explicitly via MatcherCast<T>(m), which takes a
-// matcher m and returns a Matcher<T>. It compiles only when T can be
-// statically converted to the argument type of m.
-template <typename T, typename M>
-inline Matcher<T> MatcherCast(const M& matcher) {
- return internal::MatcherCastImpl<T, M>::Cast(matcher);
-}
-
-// Implements SafeMatcherCast().
-//
-// We use an intermediate class to do the actual safe casting as Nokia's
-// Symbian compiler cannot decide between
-// template <T, M> ... (M) and
-// template <T, U> ... (const Matcher<U>&)
-// for function templates but can for member function templates.
-template <typename T>
-class SafeMatcherCastImpl {
- public:
- // This overload handles polymorphic matchers and values only since
- // monomorphic matchers are handled by the next one.
- template <typename M>
- static inline Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
- return internal::MatcherCastImpl<T, M>::Cast(polymorphic_matcher_or_value);
- }
-
- // This overload handles monomorphic matchers.
- //
- // In general, if type T can be implicitly converted to type U, we can
- // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is
- // contravariant): just keep a copy of the original Matcher<U>, convert the
- // argument from type T to U, and then pass it to the underlying Matcher<U>.
- // The only exception is when U is a reference and T is not, as the
- // underlying Matcher<U> may be interested in the argument's address, which
- // is not preserved in the conversion from T to U.
- template <typename U>
- static inline Matcher<T> Cast(const Matcher<U>& matcher) {
- // Enforce that T can be implicitly converted to U.
- GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value),
- T_must_be_implicitly_convertible_to_U);
- // Enforce that we are not converting a non-reference type T to a reference
- // type U.
- GTEST_COMPILE_ASSERT_(
- internal::is_reference<T>::value || !internal::is_reference<U>::value,
- cannot_convert_non_reference_arg_to_reference);
- // In case both T and U are arithmetic types, enforce that the
- // conversion is not lossy.
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT;
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU;
- const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;
- const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;
- GTEST_COMPILE_ASSERT_(
- kTIsOther || kUIsOther ||
- (internal::LosslessArithmeticConvertible<RawT, RawU>::value),
- conversion_of_arithmetic_types_must_be_lossless);
- return MatcherCast<T>(matcher);
- }
-};
-
-template <typename T, typename M>
-inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) {
- return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher);
-}
-
-// A<T>() returns a matcher that matches any value of type T.
-template <typename T>
-Matcher<T> A();
-
-// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
-// and MUST NOT BE USED IN USER CODE!!!
-namespace internal {
-
-// If the explanation is not empty, prints it to the ostream.
-inline void PrintIfNotEmpty(const std::string& explanation,
- ::std::ostream* os) {
- if (explanation != "" && os != NULL) {
- *os << ", " << explanation;
- }
-}
-
-// Returns true if the given type name is easy to read by a human.
-// This is used to decide whether printing the type of a value might
-// be helpful.
-inline bool IsReadableTypeName(const std::string& type_name) {
- // We consider a type name readable if it's short or doesn't contain
- // a template or function type.
- return (type_name.length() <= 20 ||
- type_name.find_first_of("<(") == std::string::npos);
-}
-
-// Matches the value against the given matcher, prints the value and explains
-// the match result to the listener. Returns the match result.
-// 'listener' must not be NULL.
-// Value cannot be passed by const reference, because some matchers take a
-// non-const argument.
-template <typename Value, typename T>
-bool MatchPrintAndExplain(Value& value, const Matcher<T>& matcher,
- MatchResultListener* listener) {
- if (!listener->IsInterested()) {
- // If the listener is not interested, we do not need to construct the
- // inner explanation.
- return matcher.Matches(value);
- }
-
- StringMatchResultListener inner_listener;
- const bool match = matcher.MatchAndExplain(value, &inner_listener);
-
- UniversalPrint(value, listener->stream());
-#if GTEST_HAS_RTTI
- const std::string& type_name = GetTypeName<Value>();
- if (IsReadableTypeName(type_name))
- *listener->stream() << " (of type " << type_name << ")";
-#endif
- PrintIfNotEmpty(inner_listener.str(), listener->stream());
-
- return match;
-}
-
-// An internal helper class for doing compile-time loop on a tuple's
-// fields.
-template <size_t N>
-class TuplePrefix {
- public:
- // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true
- // iff the first N fields of matcher_tuple matches the first N
- // fields of value_tuple, respectively.
- template <typename MatcherTuple, typename ValueTuple>
- static bool Matches(const MatcherTuple& matcher_tuple,
- const ValueTuple& value_tuple) {
- return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple)
- && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple));
- }
-
- // TuplePrefix<N>::ExplainMatchFailuresTo(matchers, values, os)
- // describes failures in matching the first N fields of matchers
- // against the first N fields of values. If there is no failure,
- // nothing will be streamed to os.
- template <typename MatcherTuple, typename ValueTuple>
- static void ExplainMatchFailuresTo(const MatcherTuple& matchers,
- const ValueTuple& values,
- ::std::ostream* os) {
- // First, describes failures in the first N - 1 fields.
- TuplePrefix<N - 1>::ExplainMatchFailuresTo(matchers, values, os);
-
- // Then describes the failure (if any) in the (N - 1)-th (0-based)
- // field.
- typename tuple_element<N - 1, MatcherTuple>::type matcher =
- get<N - 1>(matchers);
- typedef typename tuple_element<N - 1, ValueTuple>::type Value;
- GTEST_REFERENCE_TO_CONST_(Value) value = get<N - 1>(values);
- StringMatchResultListener listener;
- if (!matcher.MatchAndExplain(value, &listener)) {
- // FIXME: include in the message the name of the parameter
- // as used in MOCK_METHOD*() when possible.
- *os << " Expected arg #" << N - 1 << ": ";
- get<N - 1>(matchers).DescribeTo(os);
- *os << "\n Actual: ";
- // We remove the reference in type Value to prevent the
- // universal printer from printing the address of value, which
- // isn't interesting to the user most of the time. The
- // matcher's MatchAndExplain() method handles the case when
- // the address is interesting.
- internal::UniversalPrint(value, os);
- PrintIfNotEmpty(listener.str(), os);
- *os << "\n";
- }
- }
-};
-
-// The base case.
-template <>
-class TuplePrefix<0> {
- public:
- template <typename MatcherTuple, typename ValueTuple>
- static bool Matches(const MatcherTuple& /* matcher_tuple */,
- const ValueTuple& /* value_tuple */) {
- return true;
- }
-
- template <typename MatcherTuple, typename ValueTuple>
- static void ExplainMatchFailuresTo(const MatcherTuple& /* matchers */,
- const ValueTuple& /* values */,
- ::std::ostream* /* os */) {}
-};
-
-// TupleMatches(matcher_tuple, value_tuple) returns true iff all
-// matchers in matcher_tuple match the corresponding fields in
-// value_tuple. It is a compiler error if matcher_tuple and
-// value_tuple have different number of fields or incompatible field
-// types.
-template <typename MatcherTuple, typename ValueTuple>
-bool TupleMatches(const MatcherTuple& matcher_tuple,
- const ValueTuple& value_tuple) {
- // Makes sure that matcher_tuple and value_tuple have the same
- // number of fields.
- GTEST_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value ==
- tuple_size<ValueTuple>::value,
- matcher_and_value_have_different_numbers_of_fields);
- return TuplePrefix<tuple_size<ValueTuple>::value>::
- Matches(matcher_tuple, value_tuple);
-}
-
-// Describes failures in matching matchers against values. If there
-// is no failure, nothing will be streamed to os.
-template <typename MatcherTuple, typename ValueTuple>
-void ExplainMatchFailureTupleTo(const MatcherTuple& matchers,
- const ValueTuple& values,
- ::std::ostream* os) {
- TuplePrefix<tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo(
- matchers, values, os);
-}
-
-// TransformTupleValues and its helper.
-//
-// TransformTupleValuesHelper hides the internal machinery that
-// TransformTupleValues uses to implement a tuple traversal.
-template <typename Tuple, typename Func, typename OutIter>
-class TransformTupleValuesHelper {
- private:
- typedef ::testing::tuple_size<Tuple> TupleSize;
-
- public:
- // For each member of tuple 't', taken in order, evaluates '*out++ = f(t)'.
- // Returns the final value of 'out' in case the caller needs it.
- static OutIter Run(Func f, const Tuple& t, OutIter out) {
- return IterateOverTuple<Tuple, TupleSize::value>()(f, t, out);
- }
-
- private:
- template <typename Tup, size_t kRemainingSize>
- struct IterateOverTuple {
- OutIter operator() (Func f, const Tup& t, OutIter out) const {
- *out++ = f(::testing::get<TupleSize::value - kRemainingSize>(t));
- return IterateOverTuple<Tup, kRemainingSize - 1>()(f, t, out);
- }
- };
- template <typename Tup>
- struct IterateOverTuple<Tup, 0> {
- OutIter operator() (Func /* f */, const Tup& /* t */, OutIter out) const {
- return out;
- }
- };
-};
-
-// Successively invokes 'f(element)' on each element of the tuple 't',
-// appending each result to the 'out' iterator. Returns the final value
-// of 'out'.
-template <typename Tuple, typename Func, typename OutIter>
-OutIter TransformTupleValues(Func f, const Tuple& t, OutIter out) {
- return TransformTupleValuesHelper<Tuple, Func, OutIter>::Run(f, t, out);
-}
-
-// Implements A<T>().
-template <typename T>
-class AnyMatcherImpl : public MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)> {
- public:
- virtual bool MatchAndExplain(GTEST_REFERENCE_TO_CONST_(T) /* x */,
- MatchResultListener* /* listener */) const {
- return true;
- }
- virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- // This is mostly for completeness' safe, as it's not very useful
- // to write Not(A<bool>()). However we cannot completely rule out
- // such a possibility, and it doesn't hurt to be prepared.
- *os << "never matches";
- }
-};
-
-// Implements _, a matcher that matches any value of any
-// type. This is a polymorphic matcher, so we need a template type
-// conversion operator to make it appearing as a Matcher<T> for any
-// type T.
-class AnythingMatcher {
- public:
- template <typename T>
- operator Matcher<T>() const { return A<T>(); }
-};
-
-// Implements a matcher that compares a given value with a
-// pre-supplied value using one of the ==, <=, <, etc, operators. The
-// two values being compared don't have to have the same type.
-//
-// The matcher defined here is polymorphic (for example, Eq(5) can be
-// used to match an int, a short, a double, etc). Therefore we use
-// a template type conversion operator in the implementation.
-//
-// The following template definition assumes that the Rhs parameter is
-// a "bare" type (i.e. neither 'const T' nor 'T&').
-template <typename D, typename Rhs, typename Op>
-class ComparisonBase {
- public:
- explicit ComparisonBase(const Rhs& rhs) : rhs_(rhs) {}
- template <typename Lhs>
- operator Matcher<Lhs>() const {
- return MakeMatcher(new Impl<Lhs>(rhs_));
- }
-
- private:
- template <typename Lhs>
- class Impl : public MatcherInterface<Lhs> {
- public:
- explicit Impl(const Rhs& rhs) : rhs_(rhs) {}
- virtual bool MatchAndExplain(
- Lhs lhs, MatchResultListener* /* listener */) const {
- return Op()(lhs, rhs_);
- }
- virtual void DescribeTo(::std::ostream* os) const {
- *os << D::Desc() << " ";
- UniversalPrint(rhs_, os);
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << D::NegatedDesc() << " ";
- UniversalPrint(rhs_, os);
- }
- private:
- Rhs rhs_;
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
- Rhs rhs_;
- GTEST_DISALLOW_ASSIGN_(ComparisonBase);
-};
-
-template <typename Rhs>
-class EqMatcher : public ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq> {
- public:
- explicit EqMatcher(const Rhs& rhs)
- : ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq>(rhs) { }
- static const char* Desc() { return "is equal to"; }
- static const char* NegatedDesc() { return "isn't equal to"; }
-};
-template <typename Rhs>
-class NeMatcher : public ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe> {
- public:
- explicit NeMatcher(const Rhs& rhs)
- : ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe>(rhs) { }
- static const char* Desc() { return "isn't equal to"; }
- static const char* NegatedDesc() { return "is equal to"; }
-};
-template <typename Rhs>
-class LtMatcher : public ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt> {
- public:
- explicit LtMatcher(const Rhs& rhs)
- : ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt>(rhs) { }
- static const char* Desc() { return "is <"; }
- static const char* NegatedDesc() { return "isn't <"; }
-};
-template <typename Rhs>
-class GtMatcher : public ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt> {
- public:
- explicit GtMatcher(const Rhs& rhs)
- : ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt>(rhs) { }
- static const char* Desc() { return "is >"; }
- static const char* NegatedDesc() { return "isn't >"; }
-};
-template <typename Rhs>
-class LeMatcher : public ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe> {
- public:
- explicit LeMatcher(const Rhs& rhs)
- : ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe>(rhs) { }
- static const char* Desc() { return "is <="; }
- static const char* NegatedDesc() { return "isn't <="; }
-};
-template <typename Rhs>
-class GeMatcher : public ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe> {
- public:
- explicit GeMatcher(const Rhs& rhs)
- : ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe>(rhs) { }
- static const char* Desc() { return "is >="; }
- static const char* NegatedDesc() { return "isn't >="; }
-};
-
-// Implements the polymorphic IsNull() matcher, which matches any raw or smart
-// pointer that is NULL.
-class IsNullMatcher {
- public:
- template <typename Pointer>
- bool MatchAndExplain(const Pointer& p,
- MatchResultListener* /* listener */) const {
-#if GTEST_LANG_CXX11
- return p == nullptr;
-#else // GTEST_LANG_CXX11
- return GetRawPointer(p) == NULL;
-#endif // GTEST_LANG_CXX11
- }
-
- void DescribeTo(::std::ostream* os) const { *os << "is NULL"; }
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "isn't NULL";
- }
-};
-
-// Implements the polymorphic NotNull() matcher, which matches any raw or smart
-// pointer that is not NULL.
-class NotNullMatcher {
- public:
- template <typename Pointer>
- bool MatchAndExplain(const Pointer& p,
- MatchResultListener* /* listener */) const {
-#if GTEST_LANG_CXX11
- return p != nullptr;
-#else // GTEST_LANG_CXX11
- return GetRawPointer(p) != NULL;
-#endif // GTEST_LANG_CXX11
- }
-
- void DescribeTo(::std::ostream* os) const { *os << "isn't NULL"; }
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "is NULL";
- }
-};
-
-// Ref(variable) matches any argument that is a reference to
-// 'variable'. This matcher is polymorphic as it can match any
-// super type of the type of 'variable'.
-//
-// The RefMatcher template class implements Ref(variable). It can
-// only be instantiated with a reference type. This prevents a user
-// from mistakenly using Ref(x) to match a non-reference function
-// argument. For example, the following will righteously cause a
-// compiler error:
-//
-// int n;
-// Matcher<int> m1 = Ref(n); // This won't compile.
-// Matcher<int&> m2 = Ref(n); // This will compile.
-template <typename T>
-class RefMatcher;
-
-template <typename T>
-class RefMatcher<T&> {
- // Google Mock is a generic framework and thus needs to support
- // mocking any function types, including those that take non-const
- // reference arguments. Therefore the template parameter T (and
- // Super below) can be instantiated to either a const type or a
- // non-const type.
- public:
- // RefMatcher() takes a T& instead of const T&, as we want the
- // compiler to catch using Ref(const_value) as a matcher for a
- // non-const reference.
- explicit RefMatcher(T& x) : object_(x) {} // NOLINT
-
- template <typename Super>
- operator Matcher<Super&>() const {
- // By passing object_ (type T&) to Impl(), which expects a Super&,
- // we make sure that Super is a super type of T. In particular,
- // this catches using Ref(const_value) as a matcher for a
- // non-const reference, as you cannot implicitly convert a const
- // reference to a non-const reference.
- return MakeMatcher(new Impl<Super>(object_));
- }
-
- private:
- template <typename Super>
- class Impl : public MatcherInterface<Super&> {
- public:
- explicit Impl(Super& x) : object_(x) {} // NOLINT
-
- // MatchAndExplain() takes a Super& (as opposed to const Super&)
- // in order to match the interface MatcherInterface<Super&>.
- virtual bool MatchAndExplain(
- Super& x, MatchResultListener* listener) const {
- *listener << "which is located @" << static_cast<const void*>(&x);
- return &x == &object_;
- }
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "references the variable ";
- UniversalPrinter<Super&>::Print(object_, os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "does not reference the variable ";
- UniversalPrinter<Super&>::Print(object_, os);
- }
-
- private:
- const Super& object_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- T& object_;
-
- GTEST_DISALLOW_ASSIGN_(RefMatcher);
-};
-
-// Polymorphic helper functions for narrow and wide string matchers.
-inline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) {
- return String::CaseInsensitiveCStringEquals(lhs, rhs);
-}
-
-inline bool CaseInsensitiveCStringEquals(const wchar_t* lhs,
- const wchar_t* rhs) {
- return String::CaseInsensitiveWideCStringEquals(lhs, rhs);
-}
-
-// String comparison for narrow or wide strings that can have embedded NUL
-// characters.
-template <typename StringType>
-bool CaseInsensitiveStringEquals(const StringType& s1,
- const StringType& s2) {
- // Are the heads equal?
- if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) {
- return false;
- }
-
- // Skip the equal heads.
- const typename StringType::value_type nul = 0;
- const size_t i1 = s1.find(nul), i2 = s2.find(nul);
-
- // Are we at the end of either s1 or s2?
- if (i1 == StringType::npos || i2 == StringType::npos) {
- return i1 == i2;
- }
-
- // Are the tails equal?
- return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1));
-}
-
-// String matchers.
-
-// Implements equality-based string matchers like StrEq, StrCaseNe, and etc.
-template <typename StringType>
-class StrEqualityMatcher {
- public:
- StrEqualityMatcher(const StringType& str, bool expect_eq,
- bool case_sensitive)
- : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {}
-
-#if GTEST_HAS_ABSL
- bool MatchAndExplain(const absl::string_view& s,
- MatchResultListener* listener) const {
- if (s.data() == NULL) {
- return !expect_eq_;
- }
- // This should fail to compile if absl::string_view is used with wide
- // strings.
- const StringType& str = string(s);
- return MatchAndExplain(str, listener);
- }
-#endif // GTEST_HAS_ABSL
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- if (s == NULL) {
- return !expect_eq_;
- }
- return MatchAndExplain(StringType(s), listener);
- }
-
- // Matches anything that can convert to StringType.
- //
- // This is a template, not just a plain function with const StringType&,
- // because absl::string_view has some interfering non-explicit constructors.
- template <typename MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const StringType& s2(s);
- const bool eq = case_sensitive_ ? s2 == string_ :
- CaseInsensitiveStringEquals(s2, string_);
- return expect_eq_ == eq;
- }
-
- void DescribeTo(::std::ostream* os) const {
- DescribeToHelper(expect_eq_, os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- DescribeToHelper(!expect_eq_, os);
- }
-
- private:
- void DescribeToHelper(bool expect_eq, ::std::ostream* os) const {
- *os << (expect_eq ? "is " : "isn't ");
- *os << "equal to ";
- if (!case_sensitive_) {
- *os << "(ignoring case) ";
- }
- UniversalPrint(string_, os);
- }
-
- const StringType string_;
- const bool expect_eq_;
- const bool case_sensitive_;
-
- GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher);
-};
-
-// Implements the polymorphic HasSubstr(substring) matcher, which
-// can be used as a Matcher<T> as long as T can be converted to a
-// string.
-template <typename StringType>
-class HasSubstrMatcher {
- public:
- explicit HasSubstrMatcher(const StringType& substring)
- : substring_(substring) {}
-
-#if GTEST_HAS_ABSL
- bool MatchAndExplain(const absl::string_view& s,
- MatchResultListener* listener) const {
- if (s.data() == NULL) {
- return false;
- }
- // This should fail to compile if absl::string_view is used with wide
- // strings.
- const StringType& str = string(s);
- return MatchAndExplain(str, listener);
- }
-#endif // GTEST_HAS_ABSL
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
- }
-
- // Matches anything that can convert to StringType.
- //
- // This is a template, not just a plain function with const StringType&,
- // because absl::string_view has some interfering non-explicit constructors.
- template <typename MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const StringType& s2(s);
- return s2.find(substring_) != StringType::npos;
- }
-
- // Describes what this matcher matches.
- void DescribeTo(::std::ostream* os) const {
- *os << "has substring ";
- UniversalPrint(substring_, os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "has no substring ";
- UniversalPrint(substring_, os);
- }
-
- private:
- const StringType substring_;
-
- GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher);
-};
-
-// Implements the polymorphic StartsWith(substring) matcher, which
-// can be used as a Matcher<T> as long as T can be converted to a
-// string.
-template <typename StringType>
-class StartsWithMatcher {
- public:
- explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) {
- }
-
-#if GTEST_HAS_ABSL
- bool MatchAndExplain(const absl::string_view& s,
- MatchResultListener* listener) const {
- if (s.data() == NULL) {
- return false;
- }
- // This should fail to compile if absl::string_view is used with wide
- // strings.
- const StringType& str = string(s);
- return MatchAndExplain(str, listener);
- }
-#endif // GTEST_HAS_ABSL
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
- }
-
- // Matches anything that can convert to StringType.
- //
- // This is a template, not just a plain function with const StringType&,
- // because absl::string_view has some interfering non-explicit constructors.
- template <typename MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const StringType& s2(s);
- return s2.length() >= prefix_.length() &&
- s2.substr(0, prefix_.length()) == prefix_;
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << "starts with ";
- UniversalPrint(prefix_, os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't start with ";
- UniversalPrint(prefix_, os);
- }
-
- private:
- const StringType prefix_;
-
- GTEST_DISALLOW_ASSIGN_(StartsWithMatcher);
-};
-
-// Implements the polymorphic EndsWith(substring) matcher, which
-// can be used as a Matcher<T> as long as T can be converted to a
-// string.
-template <typename StringType>
-class EndsWithMatcher {
- public:
- explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {}
-
-#if GTEST_HAS_ABSL
- bool MatchAndExplain(const absl::string_view& s,
- MatchResultListener* listener) const {
- if (s.data() == NULL) {
- return false;
- }
- // This should fail to compile if absl::string_view is used with wide
- // strings.
- const StringType& str = string(s);
- return MatchAndExplain(str, listener);
- }
-#endif // GTEST_HAS_ABSL
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
- }
-
- // Matches anything that can convert to StringType.
- //
- // This is a template, not just a plain function with const StringType&,
- // because absl::string_view has some interfering non-explicit constructors.
- template <typename MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const StringType& s2(s);
- return s2.length() >= suffix_.length() &&
- s2.substr(s2.length() - suffix_.length()) == suffix_;
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << "ends with ";
- UniversalPrint(suffix_, os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't end with ";
- UniversalPrint(suffix_, os);
- }
-
- private:
- const StringType suffix_;
-
- GTEST_DISALLOW_ASSIGN_(EndsWithMatcher);
-};
-
-// Implements polymorphic matchers MatchesRegex(regex) and
-// ContainsRegex(regex), which can be used as a Matcher<T> as long as
-// T can be converted to a string.
-class MatchesRegexMatcher {
- public:
- MatchesRegexMatcher(const RE* regex, bool full_match)
- : regex_(regex), full_match_(full_match) {}
-
-#if GTEST_HAS_ABSL
- bool MatchAndExplain(const absl::string_view& s,
- MatchResultListener* listener) const {
- return s.data() && MatchAndExplain(string(s), listener);
- }
-#endif // GTEST_HAS_ABSL
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(std::string(s), listener);
- }
-
- // Matches anything that can convert to std::string.
- //
- // This is a template, not just a plain function with const std::string&,
- // because absl::string_view has some interfering non-explicit constructors.
- template <class MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const std::string& s2(s);
- return full_match_ ? RE::FullMatch(s2, *regex_) :
- RE::PartialMatch(s2, *regex_);
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << (full_match_ ? "matches" : "contains")
- << " regular expression ";
- UniversalPrinter<std::string>::Print(regex_->pattern(), os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't " << (full_match_ ? "match" : "contain")
- << " regular expression ";
- UniversalPrinter<std::string>::Print(regex_->pattern(), os);
- }
-
- private:
- const internal::linked_ptr<const RE> regex_;
- const bool full_match_;
-
- GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher);
-};
-
-// Implements a matcher that compares the two fields of a 2-tuple
-// using one of the ==, <=, <, etc, operators. The two fields being
-// compared don't have to have the same type.
-//
-// The matcher defined here is polymorphic (for example, Eq() can be
-// used to match a tuple<int, short>, a tuple<const long&, double>,
-// etc). Therefore we use a template type conversion operator in the
-// implementation.
-template <typename D, typename Op>
-class PairMatchBase {
- public:
- template <typename T1, typename T2>
- operator Matcher< ::testing::tuple<T1, T2> >() const {
- return MakeMatcher(new Impl< ::testing::tuple<T1, T2> >);
- }
- template <typename T1, typename T2>
- operator Matcher<const ::testing::tuple<T1, T2>&>() const {
- return MakeMatcher(new Impl<const ::testing::tuple<T1, T2>&>);
- }
-
- private:
- static ::std::ostream& GetDesc(::std::ostream& os) { // NOLINT
- return os << D::Desc();
- }
-
- template <typename Tuple>
- class Impl : public MatcherInterface<Tuple> {
- public:
- virtual bool MatchAndExplain(
- Tuple args,
- MatchResultListener* /* listener */) const {
- return Op()(::testing::get<0>(args), ::testing::get<1>(args));
- }
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "are " << GetDesc;
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "aren't " << GetDesc;
- }
- };
-};
-
-class Eq2Matcher : public PairMatchBase<Eq2Matcher, AnyEq> {
- public:
- static const char* Desc() { return "an equal pair"; }
-};
-class Ne2Matcher : public PairMatchBase<Ne2Matcher, AnyNe> {
- public:
- static const char* Desc() { return "an unequal pair"; }
-};
-class Lt2Matcher : public PairMatchBase<Lt2Matcher, AnyLt> {
- public:
- static const char* Desc() { return "a pair where the first < the second"; }
-};
-class Gt2Matcher : public PairMatchBase<Gt2Matcher, AnyGt> {
- public:
- static const char* Desc() { return "a pair where the first > the second"; }
-};
-class Le2Matcher : public PairMatchBase<Le2Matcher, AnyLe> {
- public:
- static const char* Desc() { return "a pair where the first <= the second"; }
-};
-class Ge2Matcher : public PairMatchBase<Ge2Matcher, AnyGe> {
- public:
- static const char* Desc() { return "a pair where the first >= the second"; }
-};
-
-// Implements the Not(...) matcher for a particular argument type T.
-// We do not nest it inside the NotMatcher class template, as that
-// will prevent different instantiations of NotMatcher from sharing
-// the same NotMatcherImpl<T> class.
-template <typename T>
-class NotMatcherImpl : public MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)> {
- public:
- explicit NotMatcherImpl(const Matcher<T>& matcher)
- : matcher_(matcher) {}
-
- virtual bool MatchAndExplain(GTEST_REFERENCE_TO_CONST_(T) x,
- MatchResultListener* listener) const {
- return !matcher_.MatchAndExplain(x, listener);
- }
-
- virtual void DescribeTo(::std::ostream* os) const {
- matcher_.DescribeNegationTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- matcher_.DescribeTo(os);
- }
-
- private:
- const Matcher<T> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(NotMatcherImpl);
-};
-
-// Implements the Not(m) matcher, which matches a value that doesn't
-// match matcher m.
-template <typename InnerMatcher>
-class NotMatcher {
- public:
- explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {}
-
- // This template type conversion operator allows Not(m) to be used
- // to match any type m can match.
- template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new NotMatcherImpl<T>(SafeMatcherCast<T>(matcher_)));
- }
-
- private:
- InnerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(NotMatcher);
-};
-
-// Implements the AllOf(m1, m2) matcher for a particular argument type
-// T. We do not nest it inside the BothOfMatcher class template, as
-// that will prevent different instantiations of BothOfMatcher from
-// sharing the same BothOfMatcherImpl<T> class.
-template <typename T>
-class AllOfMatcherImpl
- : public MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)> {
- public:
- explicit AllOfMatcherImpl(std::vector<Matcher<T> > matchers)
- : matchers_(internal::move(matchers)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "(";
- for (size_t i = 0; i < matchers_.size(); ++i) {
- if (i != 0) *os << ") and (";
- matchers_[i].DescribeTo(os);
- }
- *os << ")";
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "(";
- for (size_t i = 0; i < matchers_.size(); ++i) {
- if (i != 0) *os << ") or (";
- matchers_[i].DescribeNegationTo(os);
- }
- *os << ")";
- }
-
- virtual bool MatchAndExplain(GTEST_REFERENCE_TO_CONST_(T) x,
- MatchResultListener* listener) const {
- // If either matcher1_ or matcher2_ doesn't match x, we only need
- // to explain why one of them fails.
- std::string all_match_result;
-
- for (size_t i = 0; i < matchers_.size(); ++i) {
- StringMatchResultListener slistener;
- if (matchers_[i].MatchAndExplain(x, &slistener)) {
- if (all_match_result.empty()) {
- all_match_result = slistener.str();
- } else {
- std::string result = slistener.str();
- if (!result.empty()) {
- all_match_result += ", and ";
- all_match_result += result;
- }
- }
- } else {
- *listener << slistener.str();
- return false;
- }
- }
-
- // Otherwise we need to explain why *both* of them match.
- *listener << all_match_result;
- return true;
- }
-
- private:
- const std::vector<Matcher<T> > matchers_;
-
- GTEST_DISALLOW_ASSIGN_(AllOfMatcherImpl);
-};
-
-#if GTEST_LANG_CXX11
-// VariadicMatcher is used for the variadic implementation of
-// AllOf(m_1, m_2, ...) and AnyOf(m_1, m_2, ...).
-// CombiningMatcher<T> is used to recursively combine the provided matchers
-// (of type Args...).
-template <template <typename T> class CombiningMatcher, typename... Args>
-class VariadicMatcher {
- public:
- VariadicMatcher(const Args&... matchers) // NOLINT
- : matchers_(matchers...) {
- static_assert(sizeof...(Args) > 0, "Must have at least one matcher.");
- }
-
- // This template type conversion operator allows an
- // VariadicMatcher<Matcher1, Matcher2...> object to match any type that
- // all of the provided matchers (Matcher1, Matcher2, ...) can match.
- template <typename T>
- operator Matcher<T>() const {
- std::vector<Matcher<T> > values;
- CreateVariadicMatcher<T>(&values, std::integral_constant<size_t, 0>());
- return Matcher<T>(new CombiningMatcher<T>(internal::move(values)));
- }
-
- private:
- template <typename T, size_t I>
- void CreateVariadicMatcher(std::vector<Matcher<T> >* values,
- std::integral_constant<size_t, I>) const {
- values->push_back(SafeMatcherCast<T>(std::get<I>(matchers_)));
- CreateVariadicMatcher<T>(values, std::integral_constant<size_t, I + 1>());
- }
-
- template <typename T>
- void CreateVariadicMatcher(
- std::vector<Matcher<T> >*,
- std::integral_constant<size_t, sizeof...(Args)>) const {}
-
- tuple<Args...> matchers_;
-
- GTEST_DISALLOW_ASSIGN_(VariadicMatcher);
-};
-
-template <typename... Args>
-using AllOfMatcher = VariadicMatcher<AllOfMatcherImpl, Args...>;
-
-#endif // GTEST_LANG_CXX11
-
-// Used for implementing the AllOf(m_1, ..., m_n) matcher, which
-// matches a value that matches all of the matchers m_1, ..., and m_n.
-template <typename Matcher1, typename Matcher2>
-class BothOfMatcher {
- public:
- BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
-
- // This template type conversion operator allows a
- // BothOfMatcher<Matcher1, Matcher2> object to match any type that
- // both Matcher1 and Matcher2 can match.
- template <typename T>
- operator Matcher<T>() const {
- std::vector<Matcher<T> > values;
- values.push_back(SafeMatcherCast<T>(matcher1_));
- values.push_back(SafeMatcherCast<T>(matcher2_));
- return Matcher<T>(new AllOfMatcherImpl<T>(internal::move(values)));
- }
-
- private:
- Matcher1 matcher1_;
- Matcher2 matcher2_;
-
- GTEST_DISALLOW_ASSIGN_(BothOfMatcher);
-};
-
-// Implements the AnyOf(m1, m2) matcher for a particular argument type
-// T. We do not nest it inside the AnyOfMatcher class template, as
-// that will prevent different instantiations of AnyOfMatcher from
-// sharing the same EitherOfMatcherImpl<T> class.
-template <typename T>
-class AnyOfMatcherImpl
- : public MatcherInterface<GTEST_REFERENCE_TO_CONST_(T)> {
- public:
- explicit AnyOfMatcherImpl(std::vector<Matcher<T> > matchers)
- : matchers_(internal::move(matchers)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "(";
- for (size_t i = 0; i < matchers_.size(); ++i) {
- if (i != 0) *os << ") or (";
- matchers_[i].DescribeTo(os);
- }
- *os << ")";
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "(";
- for (size_t i = 0; i < matchers_.size(); ++i) {
- if (i != 0) *os << ") and (";
- matchers_[i].DescribeNegationTo(os);
- }
- *os << ")";
- }
-
- virtual bool MatchAndExplain(GTEST_REFERENCE_TO_CONST_(T) x,
- MatchResultListener* listener) const {
- std::string no_match_result;
-
- // If either matcher1_ or matcher2_ matches x, we just need to
- // explain why *one* of them matches.
- for (size_t i = 0; i < matchers_.size(); ++i) {
- StringMatchResultListener slistener;
- if (matchers_[i].MatchAndExplain(x, &slistener)) {
- *listener << slistener.str();
- return true;
- } else {
- if (no_match_result.empty()) {
- no_match_result = slistener.str();
- } else {
- std::string result = slistener.str();
- if (!result.empty()) {
- no_match_result += ", and ";
- no_match_result += result;
- }
- }
- }
- }
-
- // Otherwise we need to explain why *both* of them fail.
- *listener << no_match_result;
- return false;
- }
-
- private:
- const std::vector<Matcher<T> > matchers_;
-
- GTEST_DISALLOW_ASSIGN_(AnyOfMatcherImpl);
-};
-
-#if GTEST_LANG_CXX11
-// AnyOfMatcher is used for the variadic implementation of AnyOf(m_1, m_2, ...).
-template <typename... Args>
-using AnyOfMatcher = VariadicMatcher<AnyOfMatcherImpl, Args...>;
-
-#endif // GTEST_LANG_CXX11
-
-// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which
-// matches a value that matches at least one of the matchers m_1, ...,
-// and m_n.
-template <typename Matcher1, typename Matcher2>
-class EitherOfMatcher {
- public:
- EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
-
- // This template type conversion operator allows a
- // EitherOfMatcher<Matcher1, Matcher2> object to match any type that
- // both Matcher1 and Matcher2 can match.
- template <typename T>
- operator Matcher<T>() const {
- std::vector<Matcher<T> > values;
- values.push_back(SafeMatcherCast<T>(matcher1_));
- values.push_back(SafeMatcherCast<T>(matcher2_));
- return Matcher<T>(new AnyOfMatcherImpl<T>(internal::move(values)));
- }
-
- private:
- Matcher1 matcher1_;
- Matcher2 matcher2_;
-
- GTEST_DISALLOW_ASSIGN_(EitherOfMatcher);
-};
-
-// Used for implementing Truly(pred), which turns a predicate into a
-// matcher.
-template <typename Predicate>
-class TrulyMatcher {
- public:
- explicit TrulyMatcher(Predicate pred) : predicate_(pred) {}
-
- // This method template allows Truly(pred) to be used as a matcher
- // for type T where T is the argument type of predicate 'pred'. The
- // argument is passed by reference as the predicate may be
- // interested in the address of the argument.
- template <typename T>
- bool MatchAndExplain(T& x, // NOLINT
- MatchResultListener* /* listener */) const {
- // Without the if-statement, MSVC sometimes warns about converting
- // a value to bool (warning 4800).
- //
- // We cannot write 'return !!predicate_(x);' as that doesn't work
- // when predicate_(x) returns a class convertible to bool but
- // having no operator!().
- if (predicate_(x))
- return true;
- return false;
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << "satisfies the given predicate";
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't satisfy the given predicate";
- }
-
- private:
- Predicate predicate_;
-
- GTEST_DISALLOW_ASSIGN_(TrulyMatcher);
-};
-
-// Used for implementing Matches(matcher), which turns a matcher into
-// a predicate.
-template <typename M>
-class MatcherAsPredicate {
- public:
- explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {}
-
- // This template operator() allows Matches(m) to be used as a
- // predicate on type T where m is a matcher on type T.
- //
- // The argument x is passed by reference instead of by value, as
- // some matcher may be interested in its address (e.g. as in
- // Matches(Ref(n))(x)).
- template <typename T>
- bool operator()(const T& x) const {
- // We let matcher_ commit to a particular type here instead of
- // when the MatcherAsPredicate object was constructed. This
- // allows us to write Matches(m) where m is a polymorphic matcher
- // (e.g. Eq(5)).
- //
- // If we write Matcher<T>(matcher_).Matches(x) here, it won't
- // compile when matcher_ has type Matcher<const T&>; if we write
- // Matcher<const T&>(matcher_).Matches(x) here, it won't compile
- // when matcher_ has type Matcher<T>; if we just write
- // matcher_.Matches(x), it won't compile when matcher_ is
- // polymorphic, e.g. Eq(5).
- //
- // MatcherCast<const T&>() is necessary for making the code work
- // in all of the above situations.
- return MatcherCast<const T&>(matcher_).Matches(x);
- }
-
- private:
- M matcher_;
-
- GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate);
-};
-
-// For implementing ASSERT_THAT() and EXPECT_THAT(). The template
-// argument M must be a type that can be converted to a matcher.
-template <typename M>
-class PredicateFormatterFromMatcher {
- public:
- explicit PredicateFormatterFromMatcher(M m) : matcher_(internal::move(m)) {}
-
- // This template () operator allows a PredicateFormatterFromMatcher
- // object to act as a predicate-formatter suitable for using with
- // Google Test's EXPECT_PRED_FORMAT1() macro.
- template <typename T>
- AssertionResult operator()(const char* value_text, const T& x) const {
- // We convert matcher_ to a Matcher<const T&> *now* instead of
- // when the PredicateFormatterFromMatcher object was constructed,
- // as matcher_ may be polymorphic (e.g. NotNull()) and we won't
- // know which type to instantiate it to until we actually see the
- // type of x here.
- //
- // We write SafeMatcherCast<const T&>(matcher_) instead of
- // Matcher<const T&>(matcher_), as the latter won't compile when
- // matcher_ has type Matcher<T> (e.g. An<int>()).
- // We don't write MatcherCast<const T&> either, as that allows
- // potentially unsafe downcasting of the matcher argument.
- const Matcher<const T&> matcher = SafeMatcherCast<const T&>(matcher_);
- StringMatchResultListener listener;
- if (MatchPrintAndExplain(x, matcher, &listener))
- return AssertionSuccess();
-
- ::std::stringstream ss;
- ss << "Value of: " << value_text << "\n"
- << "Expected: ";
- matcher.DescribeTo(&ss);
- ss << "\n Actual: " << listener.str();
- return AssertionFailure() << ss.str();
- }
-
- private:
- const M matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher);
-};
-
-// A helper function for converting a matcher to a predicate-formatter
-// without the user needing to explicitly write the type. This is
-// used for implementing ASSERT_THAT() and EXPECT_THAT().
-// Implementation detail: 'matcher' is received by-value to force decaying.
-template <typename M>
-inline PredicateFormatterFromMatcher<M>
-MakePredicateFormatterFromMatcher(M matcher) {
- return PredicateFormatterFromMatcher<M>(internal::move(matcher));
-}
-
-// Implements the polymorphic floating point equality matcher, which matches
-// two float values using ULP-based approximation or, optionally, a
-// user-specified epsilon. The template is meant to be instantiated with
-// FloatType being either float or double.
-template <typename FloatType>
-class FloatingEqMatcher {
- public:
- // Constructor for FloatingEqMatcher.
- // The matcher's input will be compared with expected. The matcher treats two
- // NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards,
- // equality comparisons between NANs will always return false. We specify a
- // negative max_abs_error_ term to indicate that ULP-based approximation will
- // be used for comparison.
- FloatingEqMatcher(FloatType expected, bool nan_eq_nan) :
- expected_(expected), nan_eq_nan_(nan_eq_nan), max_abs_error_(-1) {
- }
-
- // Constructor that supports a user-specified max_abs_error that will be used
- // for comparison instead of ULP-based approximation. The max absolute
- // should be non-negative.
- FloatingEqMatcher(FloatType expected, bool nan_eq_nan,
- FloatType max_abs_error)
- : expected_(expected),
- nan_eq_nan_(nan_eq_nan),
- max_abs_error_(max_abs_error) {
- GTEST_CHECK_(max_abs_error >= 0)
- << ", where max_abs_error is" << max_abs_error;
- }
-
- // Implements floating point equality matcher as a Matcher<T>.
- template <typename T>
- class Impl : public MatcherInterface<T> {
- public:
- Impl(FloatType expected, bool nan_eq_nan, FloatType max_abs_error)
- : expected_(expected),
- nan_eq_nan_(nan_eq_nan),
- max_abs_error_(max_abs_error) {}
-
- virtual bool MatchAndExplain(T value,
- MatchResultListener* listener) const {
- const FloatingPoint<FloatType> actual(value), expected(expected_);
-
- // Compares NaNs first, if nan_eq_nan_ is true.
- if (actual.is_nan() || expected.is_nan()) {
- if (actual.is_nan() && expected.is_nan()) {
- return nan_eq_nan_;
- }
- // One is nan; the other is not nan.
- return false;
- }
- if (HasMaxAbsError()) {
- // We perform an equality check so that inf will match inf, regardless
- // of error bounds. If the result of value - expected_ would result in
- // overflow or if either value is inf, the default result is infinity,
- // which should only match if max_abs_error_ is also infinity.
- if (value == expected_) {
- return true;
- }
-
- const FloatType diff = value - expected_;
- if (fabs(diff) <= max_abs_error_) {
- return true;
- }
-
- if (listener->IsInterested()) {
- *listener << "which is " << diff << " from " << expected_;
- }
- return false;
- } else {
- return actual.AlmostEquals(expected);
- }
- }
-
- virtual void DescribeTo(::std::ostream* os) const {
- // os->precision() returns the previously set precision, which we
- // store to restore the ostream to its original configuration
- // after outputting.
- const ::std::streamsize old_precision = os->precision(
- ::std::numeric_limits<FloatType>::digits10 + 2);
- if (FloatingPoint<FloatType>(expected_).is_nan()) {
- if (nan_eq_nan_) {
- *os << "is NaN";
- } else {
- *os << "never matches";
- }
- } else {
- *os << "is approximately " << expected_;
- if (HasMaxAbsError()) {
- *os << " (absolute error <= " << max_abs_error_ << ")";
- }
- }
- os->precision(old_precision);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- // As before, get original precision.
- const ::std::streamsize old_precision = os->precision(
- ::std::numeric_limits<FloatType>::digits10 + 2);
- if (FloatingPoint<FloatType>(expected_).is_nan()) {
- if (nan_eq_nan_) {
- *os << "isn't NaN";
- } else {
- *os << "is anything";
- }
- } else {
- *os << "isn't approximately " << expected_;
- if (HasMaxAbsError()) {
- *os << " (absolute error > " << max_abs_error_ << ")";
- }
- }
- // Restore original precision.
- os->precision(old_precision);
- }
-
- private:
- bool HasMaxAbsError() const {
- return max_abs_error_ >= 0;
- }
-
- const FloatType expected_;
- const bool nan_eq_nan_;
- // max_abs_error will be used for value comparison when >= 0.
- const FloatType max_abs_error_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- // The following 3 type conversion operators allow FloatEq(expected) and
- // NanSensitiveFloatEq(expected) to be used as a Matcher<float>, a
- // Matcher<const float&>, or a Matcher<float&>, but nothing else.
- // (While Google's C++ coding style doesn't allow arguments passed
- // by non-const reference, we may see them in code not conforming to
- // the style. Therefore Google Mock needs to support them.)
- operator Matcher<FloatType>() const {
- return MakeMatcher(
- new Impl<FloatType>(expected_, nan_eq_nan_, max_abs_error_));
- }
-
- operator Matcher<const FloatType&>() const {
- return MakeMatcher(
- new Impl<const FloatType&>(expected_, nan_eq_nan_, max_abs_error_));
- }
-
- operator Matcher<FloatType&>() const {
- return MakeMatcher(
- new Impl<FloatType&>(expected_, nan_eq_nan_, max_abs_error_));
- }
-
- private:
- const FloatType expected_;
- const bool nan_eq_nan_;
- // max_abs_error will be used for value comparison when >= 0.
- const FloatType max_abs_error_;
-
- GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher);
-};
-
-// A 2-tuple ("binary") wrapper around FloatingEqMatcher:
-// FloatingEq2Matcher() matches (x, y) by matching FloatingEqMatcher(x, false)
-// against y, and FloatingEq2Matcher(e) matches FloatingEqMatcher(x, false, e)
-// against y. The former implements "Eq", the latter "Near". At present, there
-// is no version that compares NaNs as equal.
-template <typename FloatType>
-class FloatingEq2Matcher {
- public:
- FloatingEq2Matcher() { Init(-1, false); }
-
- explicit FloatingEq2Matcher(bool nan_eq_nan) { Init(-1, nan_eq_nan); }
-
- explicit FloatingEq2Matcher(FloatType max_abs_error) {
- Init(max_abs_error, false);
- }
-
- FloatingEq2Matcher(FloatType max_abs_error, bool nan_eq_nan) {
- Init(max_abs_error, nan_eq_nan);
- }
-
- template <typename T1, typename T2>
- operator Matcher< ::testing::tuple<T1, T2> >() const {
- return MakeMatcher(
- new Impl< ::testing::tuple<T1, T2> >(max_abs_error_, nan_eq_nan_));
- }
- template <typename T1, typename T2>
- operator Matcher<const ::testing::tuple<T1, T2>&>() const {
- return MakeMatcher(
- new Impl<const ::testing::tuple<T1, T2>&>(max_abs_error_, nan_eq_nan_));
- }
-
- private:
- static ::std::ostream& GetDesc(::std::ostream& os) { // NOLINT
- return os << "an almost-equal pair";
- }
-
- template <typename Tuple>
- class Impl : public MatcherInterface<Tuple> {
- public:
- Impl(FloatType max_abs_error, bool nan_eq_nan) :
- max_abs_error_(max_abs_error),
- nan_eq_nan_(nan_eq_nan) {}
-
- virtual bool MatchAndExplain(Tuple args,
- MatchResultListener* listener) const {
- if (max_abs_error_ == -1) {
- FloatingEqMatcher<FloatType> fm(::testing::get<0>(args), nan_eq_nan_);
- return static_cast<Matcher<FloatType> >(fm).MatchAndExplain(
- ::testing::get<1>(args), listener);
- } else {
- FloatingEqMatcher<FloatType> fm(::testing::get<0>(args), nan_eq_nan_,
- max_abs_error_);
- return static_cast<Matcher<FloatType> >(fm).MatchAndExplain(
- ::testing::get<1>(args), listener);
- }
- }
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "are " << GetDesc;
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "aren't " << GetDesc;
- }
-
- private:
- FloatType max_abs_error_;
- const bool nan_eq_nan_;
- };
-
- void Init(FloatType max_abs_error_val, bool nan_eq_nan_val) {
- max_abs_error_ = max_abs_error_val;
- nan_eq_nan_ = nan_eq_nan_val;
- }
- FloatType max_abs_error_;
- bool nan_eq_nan_;
-};
-
-// Implements the Pointee(m) matcher for matching a pointer whose
-// pointee matches matcher m. The pointer can be either raw or smart.
-template <typename InnerMatcher>
-class PointeeMatcher {
- public:
- explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {}
-
- // This type conversion operator template allows Pointee(m) to be
- // used as a matcher for any pointer type whose pointee type is
- // compatible with the inner matcher, where type Pointer can be
- // either a raw pointer or a smart pointer.
- //
- // The reason we do this instead of relying on
- // MakePolymorphicMatcher() is that the latter is not flexible
- // enough for implementing the DescribeTo() method of Pointee().
- template <typename Pointer>
- operator Matcher<Pointer>() const {
- return Matcher<Pointer>(
- new Impl<GTEST_REFERENCE_TO_CONST_(Pointer)>(matcher_));
- }
-
- private:
- // The monomorphic implementation that works for a particular pointer type.
- template <typename Pointer>
- class Impl : public MatcherInterface<Pointer> {
- public:
- typedef typename PointeeOf<GTEST_REMOVE_CONST_( // NOLINT
- GTEST_REMOVE_REFERENCE_(Pointer))>::type Pointee;
-
- explicit Impl(const InnerMatcher& matcher)
- : matcher_(MatcherCast<const Pointee&>(matcher)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "points to a value that ";
- matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "does not point to a value that ";
- matcher_.DescribeTo(os);
- }
-
- virtual bool MatchAndExplain(Pointer pointer,
- MatchResultListener* listener) const {
- if (GetRawPointer(pointer) == NULL)
- return false;
-
- *listener << "which points to ";
- return MatchPrintAndExplain(*pointer, matcher_, listener);
- }
-
- private:
- const Matcher<const Pointee&> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- const InnerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PointeeMatcher);
-};
-
-#if GTEST_HAS_RTTI
-// Implements the WhenDynamicCastTo<T>(m) matcher that matches a pointer or
-// reference that matches inner_matcher when dynamic_cast<T> is applied.
-// The result of dynamic_cast<To> is forwarded to the inner matcher.
-// If To is a pointer and the cast fails, the inner matcher will receive NULL.
-// If To is a reference and the cast fails, this matcher returns false
-// immediately.
-template <typename To>
-class WhenDynamicCastToMatcherBase {
- public:
- explicit WhenDynamicCastToMatcherBase(const Matcher<To>& matcher)
- : matcher_(matcher) {}
-
- void DescribeTo(::std::ostream* os) const {
- GetCastTypeDescription(os);
- matcher_.DescribeTo(os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- GetCastTypeDescription(os);
- matcher_.DescribeNegationTo(os);
- }
-
- protected:
- const Matcher<To> matcher_;
-
- static std::string GetToName() {
- return GetTypeName<To>();
- }
-
- private:
- static void GetCastTypeDescription(::std::ostream* os) {
- *os << "when dynamic_cast to " << GetToName() << ", ";
- }
-
- GTEST_DISALLOW_ASSIGN_(WhenDynamicCastToMatcherBase);
-};
-
-// Primary template.
-// To is a pointer. Cast and forward the result.
-template <typename To>
-class WhenDynamicCastToMatcher : public WhenDynamicCastToMatcherBase<To> {
- public:
- explicit WhenDynamicCastToMatcher(const Matcher<To>& matcher)
- : WhenDynamicCastToMatcherBase<To>(matcher) {}
-
- template <typename From>
- bool MatchAndExplain(From from, MatchResultListener* listener) const {
- // FIXME: Add more detail on failures. ie did the dyn_cast fail?
- To to = dynamic_cast<To>(from);
- return MatchPrintAndExplain(to, this->matcher_, listener);
- }
-};
-
-// Specialize for references.
-// In this case we return false if the dynamic_cast fails.
-template <typename To>
-class WhenDynamicCastToMatcher<To&> : public WhenDynamicCastToMatcherBase<To&> {
- public:
- explicit WhenDynamicCastToMatcher(const Matcher<To&>& matcher)
- : WhenDynamicCastToMatcherBase<To&>(matcher) {}
-
- template <typename From>
- bool MatchAndExplain(From& from, MatchResultListener* listener) const {
- // We don't want an std::bad_cast here, so do the cast with pointers.
- To* to = dynamic_cast<To*>(&from);
- if (to == NULL) {
- *listener << "which cannot be dynamic_cast to " << this->GetToName();
- return false;
- }
- return MatchPrintAndExplain(*to, this->matcher_, listener);
- }
-};
-#endif // GTEST_HAS_RTTI
-
-// Implements the Field() matcher for matching a field (i.e. member
-// variable) of an object.
-template <typename Class, typename FieldType>
-class FieldMatcher {
- public:
- FieldMatcher(FieldType Class::*field,
- const Matcher<const FieldType&>& matcher)
- : field_(field), matcher_(matcher), whose_field_("whose given field ") {}
-
- FieldMatcher(const std::string& field_name, FieldType Class::*field,
- const Matcher<const FieldType&>& matcher)
- : field_(field),
- matcher_(matcher),
- whose_field_("whose field `" + field_name + "` ") {}
-
- void DescribeTo(::std::ostream* os) const {
- *os << "is an object " << whose_field_;
- matcher_.DescribeTo(os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "is an object " << whose_field_;
- matcher_.DescribeNegationTo(os);
- }
-
- template <typename T>
- bool MatchAndExplain(const T& value, MatchResultListener* listener) const {
- return MatchAndExplainImpl(
- typename ::testing::internal::
- is_pointer<GTEST_REMOVE_CONST_(T)>::type(),
- value, listener);
- }
-
- private:
- // The first argument of MatchAndExplainImpl() is needed to help
- // Symbian's C++ compiler choose which overload to use. Its type is
- // true_type iff the Field() matcher is used to match a pointer.
- bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
- MatchResultListener* listener) const {
- *listener << whose_field_ << "is ";
- return MatchPrintAndExplain(obj.*field_, matcher_, listener);
- }
-
- bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
- MatchResultListener* listener) const {
- if (p == NULL)
- return false;
-
- *listener << "which points to an object ";
- // Since *p has a field, it must be a class/struct/union type and
- // thus cannot be a pointer. Therefore we pass false_type() as
- // the first argument.
- return MatchAndExplainImpl(false_type(), *p, listener);
- }
-
- const FieldType Class::*field_;
- const Matcher<const FieldType&> matcher_;
-
- // Contains either "whose given field " if the name of the field is unknown
- // or "whose field `name_of_field` " if the name is known.
- const std::string whose_field_;
-
- GTEST_DISALLOW_ASSIGN_(FieldMatcher);
-};
-
-// Implements the Property() matcher for matching a property
-// (i.e. return value of a getter method) of an object.
-//
-// Property is a const-qualified member function of Class returning
-// PropertyType.
-template <typename Class, typename PropertyType, typename Property>
-class PropertyMatcher {
- public:
- // The property may have a reference type, so 'const PropertyType&'
- // may cause double references and fail to compile. That's why we
- // need GTEST_REFERENCE_TO_CONST, which works regardless of
- // PropertyType being a reference or not.
- typedef GTEST_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty;
-
- PropertyMatcher(Property property, const Matcher<RefToConstProperty>& matcher)
- : property_(property),
- matcher_(matcher),
- whose_property_("whose given property ") {}
-
- PropertyMatcher(const std::string& property_name, Property property,
- const Matcher<RefToConstProperty>& matcher)
- : property_(property),
- matcher_(matcher),
- whose_property_("whose property `" + property_name + "` ") {}
-
- void DescribeTo(::std::ostream* os) const {
- *os << "is an object " << whose_property_;
- matcher_.DescribeTo(os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "is an object " << whose_property_;
- matcher_.DescribeNegationTo(os);
- }
-
- template <typename T>
- bool MatchAndExplain(const T&value, MatchResultListener* listener) const {
- return MatchAndExplainImpl(
- typename ::testing::internal::
- is_pointer<GTEST_REMOVE_CONST_(T)>::type(),
- value, listener);
- }
-
- private:
- // The first argument of MatchAndExplainImpl() is needed to help
- // Symbian's C++ compiler choose which overload to use. Its type is
- // true_type iff the Property() matcher is used to match a pointer.
- bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
- MatchResultListener* listener) const {
- *listener << whose_property_ << "is ";
- // Cannot pass the return value (for example, int) to MatchPrintAndExplain,
- // which takes a non-const reference as argument.
-#if defined(_PREFAST_ ) && _MSC_VER == 1800
- // Workaround bug in VC++ 2013's /analyze parser.
- // https://connect.microsoft.com/VisualStudio/feedback/details/1106363/internal-compiler-error-with-analyze-due-to-failure-to-infer-move
- posix::Abort(); // To make sure it is never run.
- return false;
-#else
- RefToConstProperty result = (obj.*property_)();
- return MatchPrintAndExplain(result, matcher_, listener);
-#endif
- }
-
- bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
- MatchResultListener* listener) const {
- if (p == NULL)
- return false;
-
- *listener << "which points to an object ";
- // Since *p has a property method, it must be a class/struct/union
- // type and thus cannot be a pointer. Therefore we pass
- // false_type() as the first argument.
- return MatchAndExplainImpl(false_type(), *p, listener);
- }
-
- Property property_;
- const Matcher<RefToConstProperty> matcher_;
-
- // Contains either "whose given property " if the name of the property is
- // unknown or "whose property `name_of_property` " if the name is known.
- const std::string whose_property_;
-
- GTEST_DISALLOW_ASSIGN_(PropertyMatcher);
-};
-
-// Type traits specifying various features of different functors for ResultOf.
-// The default template specifies features for functor objects.
-template <typename Functor>
-struct CallableTraits {
- typedef Functor StorageType;
-
- static void CheckIsValid(Functor /* functor */) {}
-
-#if GTEST_LANG_CXX11
- template <typename T>
- static auto Invoke(Functor f, T arg) -> decltype(f(arg)) { return f(arg); }
-#else
- typedef typename Functor::result_type ResultType;
- template <typename T>
- static ResultType Invoke(Functor f, T arg) { return f(arg); }
-#endif
-};
-
-// Specialization for function pointers.
-template <typename ArgType, typename ResType>
-struct CallableTraits<ResType(*)(ArgType)> {
- typedef ResType ResultType;
- typedef ResType(*StorageType)(ArgType);
-
- static void CheckIsValid(ResType(*f)(ArgType)) {
- GTEST_CHECK_(f != NULL)
- << "NULL function pointer is passed into ResultOf().";
- }
- template <typename T>
- static ResType Invoke(ResType(*f)(ArgType), T arg) {
- return (*f)(arg);
- }
-};
-
-// Implements the ResultOf() matcher for matching a return value of a
-// unary function of an object.
-template <typename Callable, typename InnerMatcher>
-class ResultOfMatcher {
- public:
- ResultOfMatcher(Callable callable, InnerMatcher matcher)
- : callable_(internal::move(callable)), matcher_(internal::move(matcher)) {
- CallableTraits<Callable>::CheckIsValid(callable_);
- }
-
- template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new Impl<T>(callable_, matcher_));
- }
-
- private:
- typedef typename CallableTraits<Callable>::StorageType CallableStorageType;
-
- template <typename T>
- class Impl : public MatcherInterface<T> {
-#if GTEST_LANG_CXX11
- using ResultType = decltype(CallableTraits<Callable>::template Invoke<T>(
- std::declval<CallableStorageType>(), std::declval<T>()));
-#else
- typedef typename CallableTraits<Callable>::ResultType ResultType;
-#endif
-
- public:
- template <typename M>
- Impl(const CallableStorageType& callable, const M& matcher)
- : callable_(callable), matcher_(MatcherCast<ResultType>(matcher)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "is mapped by the given callable to a value that ";
- matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "is mapped by the given callable to a value that ";
- matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const {
- *listener << "which is mapped by the given callable to ";
- // Cannot pass the return value directly to MatchPrintAndExplain, which
- // takes a non-const reference as argument.
- // Also, specifying template argument explicitly is needed because T could
- // be a non-const reference (e.g. Matcher<Uncopyable&>).
- ResultType result =
- CallableTraits<Callable>::template Invoke<T>(callable_, obj);
- return MatchPrintAndExplain(result, matcher_, listener);
- }
-
- private:
- // Functors often define operator() as non-const method even though
- // they are actually stateless. But we need to use them even when
- // 'this' is a const pointer. It's the user's responsibility not to
- // use stateful callables with ResultOf(), which doesn't guarantee
- // how many times the callable will be invoked.
- mutable CallableStorageType callable_;
- const Matcher<ResultType> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- }; // class Impl
-
- const CallableStorageType callable_;
- const InnerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(ResultOfMatcher);
-};
-
-// Implements a matcher that checks the size of an STL-style container.
-template <typename SizeMatcher>
-class SizeIsMatcher {
- public:
- explicit SizeIsMatcher(const SizeMatcher& size_matcher)
- : size_matcher_(size_matcher) {
- }
-
- template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new Impl<Container>(size_matcher_));
- }
-
- template <typename Container>
- class Impl : public MatcherInterface<Container> {
- public:
- typedef internal::StlContainerView<
- GTEST_REMOVE_REFERENCE_AND_CONST_(Container)> ContainerView;
- typedef typename ContainerView::type::size_type SizeType;
- explicit Impl(const SizeMatcher& size_matcher)
- : size_matcher_(MatcherCast<SizeType>(size_matcher)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "size ";
- size_matcher_.DescribeTo(os);
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "size ";
- size_matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
- SizeType size = container.size();
- StringMatchResultListener size_listener;
- const bool result = size_matcher_.MatchAndExplain(size, &size_listener);
- *listener
- << "whose size " << size << (result ? " matches" : " doesn't match");
- PrintIfNotEmpty(size_listener.str(), listener->stream());
- return result;
- }
-
- private:
- const Matcher<SizeType> size_matcher_;
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- private:
- const SizeMatcher size_matcher_;
- GTEST_DISALLOW_ASSIGN_(SizeIsMatcher);
-};
-
-// Implements a matcher that checks the begin()..end() distance of an STL-style
-// container.
-template <typename DistanceMatcher>
-class BeginEndDistanceIsMatcher {
- public:
- explicit BeginEndDistanceIsMatcher(const DistanceMatcher& distance_matcher)
- : distance_matcher_(distance_matcher) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new Impl<Container>(distance_matcher_));
- }
-
- template <typename Container>
- class Impl : public MatcherInterface<Container> {
- public:
- typedef internal::StlContainerView<
- GTEST_REMOVE_REFERENCE_AND_CONST_(Container)> ContainerView;
- typedef typename std::iterator_traits<
- typename ContainerView::type::const_iterator>::difference_type
- DistanceType;
- explicit Impl(const DistanceMatcher& distance_matcher)
- : distance_matcher_(MatcherCast<DistanceType>(distance_matcher)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "distance between begin() and end() ";
- distance_matcher_.DescribeTo(os);
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "distance between begin() and end() ";
- distance_matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
-#if GTEST_HAS_STD_BEGIN_AND_END_
- using std::begin;
- using std::end;
- DistanceType distance = std::distance(begin(container), end(container));
-#else
- DistanceType distance = std::distance(container.begin(), container.end());
-#endif
- StringMatchResultListener distance_listener;
- const bool result =
- distance_matcher_.MatchAndExplain(distance, &distance_listener);
- *listener << "whose distance between begin() and end() " << distance
- << (result ? " matches" : " doesn't match");
- PrintIfNotEmpty(distance_listener.str(), listener->stream());
- return result;
- }
-
- private:
- const Matcher<DistanceType> distance_matcher_;
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- private:
- const DistanceMatcher distance_matcher_;
- GTEST_DISALLOW_ASSIGN_(BeginEndDistanceIsMatcher);
-};
-
-// Implements an equality matcher for any STL-style container whose elements
-// support ==. This matcher is like Eq(), but its failure explanations provide
-// more detailed information that is useful when the container is used as a set.
-// The failure message reports elements that are in one of the operands but not
-// the other. The failure messages do not report duplicate or out-of-order
-// elements in the containers (which don't properly matter to sets, but can
-// occur if the containers are vectors or lists, for example).
-//
-// Uses the container's const_iterator, value_type, operator ==,
-// begin(), and end().
-template <typename Container>
-class ContainerEqMatcher {
- public:
- typedef internal::StlContainerView<Container> View;
- typedef typename View::type StlContainer;
- typedef typename View::const_reference StlContainerReference;
-
- // We make a copy of expected in case the elements in it are modified
- // after this matcher is created.
- explicit ContainerEqMatcher(const Container& expected)
- : expected_(View::Copy(expected)) {
- // Makes sure the user doesn't instantiate this class template
- // with a const or reference type.
- (void)testing::StaticAssertTypeEq<Container,
- GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>();
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << "equals ";
- UniversalPrint(expected_, os);
- }
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "does not equal ";
- UniversalPrint(expected_, os);
- }
-
- template <typename LhsContainer>
- bool MatchAndExplain(const LhsContainer& lhs,
- MatchResultListener* listener) const {
- // GTEST_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug
- // that causes LhsContainer to be a const type sometimes.
- typedef internal::StlContainerView<GTEST_REMOVE_CONST_(LhsContainer)>
- LhsView;
- typedef typename LhsView::type LhsStlContainer;
- StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
- if (lhs_stl_container == expected_)
- return true;
-
- ::std::ostream* const os = listener->stream();
- if (os != NULL) {
- // Something is different. Check for extra values first.
- bool printed_header = false;
- for (typename LhsStlContainer::const_iterator it =
- lhs_stl_container.begin();
- it != lhs_stl_container.end(); ++it) {
- if (internal::ArrayAwareFind(expected_.begin(), expected_.end(), *it) ==
- expected_.end()) {
- if (printed_header) {
- *os << ", ";
- } else {
- *os << "which has these unexpected elements: ";
- printed_header = true;
- }
- UniversalPrint(*it, os);
- }
- }
-
- // Now check for missing values.
- bool printed_header2 = false;
- for (typename StlContainer::const_iterator it = expected_.begin();
- it != expected_.end(); ++it) {
- if (internal::ArrayAwareFind(
- lhs_stl_container.begin(), lhs_stl_container.end(), *it) ==
- lhs_stl_container.end()) {
- if (printed_header2) {
- *os << ", ";
- } else {
- *os << (printed_header ? ",\nand" : "which")
- << " doesn't have these expected elements: ";
- printed_header2 = true;
- }
- UniversalPrint(*it, os);
- }
- }
- }
-
- return false;
- }
-
- private:
- const StlContainer expected_;
-
- GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher);
-};
-
-// A comparator functor that uses the < operator to compare two values.
-struct LessComparator {
- template <typename T, typename U>
- bool operator()(const T& lhs, const U& rhs) const { return lhs < rhs; }
-};
-
-// Implements WhenSortedBy(comparator, container_matcher).
-template <typename Comparator, typename ContainerMatcher>
-class WhenSortedByMatcher {
- public:
- WhenSortedByMatcher(const Comparator& comparator,
- const ContainerMatcher& matcher)
- : comparator_(comparator), matcher_(matcher) {}
-
- template <typename LhsContainer>
- operator Matcher<LhsContainer>() const {
- return MakeMatcher(new Impl<LhsContainer>(comparator_, matcher_));
- }
-
- template <typename LhsContainer>
- class Impl : public MatcherInterface<LhsContainer> {
- public:
- typedef internal::StlContainerView<
- GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)> LhsView;
- typedef typename LhsView::type LhsStlContainer;
- typedef typename LhsView::const_reference LhsStlContainerReference;
- // Transforms std::pair<const Key, Value> into std::pair<Key, Value>
- // so that we can match associative containers.
- typedef typename RemoveConstFromKey<
- typename LhsStlContainer::value_type>::type LhsValue;
-
- Impl(const Comparator& comparator, const ContainerMatcher& matcher)
- : comparator_(comparator), matcher_(matcher) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "(when sorted) ";
- matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "(when sorted) ";
- matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(LhsContainer lhs,
- MatchResultListener* listener) const {
- LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
- ::std::vector<LhsValue> sorted_container(lhs_stl_container.begin(),
- lhs_stl_container.end());
- ::std::sort(
- sorted_container.begin(), sorted_container.end(), comparator_);
-
- if (!listener->IsInterested()) {
- // If the listener is not interested, we do not need to
- // construct the inner explanation.
- return matcher_.Matches(sorted_container);
- }
-
- *listener << "which is ";
- UniversalPrint(sorted_container, listener->stream());
- *listener << " when sorted";
-
- StringMatchResultListener inner_listener;
- const bool match = matcher_.MatchAndExplain(sorted_container,
- &inner_listener);
- PrintIfNotEmpty(inner_listener.str(), listener->stream());
- return match;
- }
-
- private:
- const Comparator comparator_;
- const Matcher<const ::std::vector<LhsValue>&> matcher_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(Impl);
- };
-
- private:
- const Comparator comparator_;
- const ContainerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(WhenSortedByMatcher);
-};
-
-// Implements Pointwise(tuple_matcher, rhs_container). tuple_matcher
-// must be able to be safely cast to Matcher<tuple<const T1&, const
-// T2&> >, where T1 and T2 are the types of elements in the LHS
-// container and the RHS container respectively.
-template <typename TupleMatcher, typename RhsContainer>
-class PointwiseMatcher {
- GTEST_COMPILE_ASSERT_(
- !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>::value,
- use_UnorderedPointwise_with_hash_tables);
-
- public:
- typedef internal::StlContainerView<RhsContainer> RhsView;
- typedef typename RhsView::type RhsStlContainer;
- typedef typename RhsStlContainer::value_type RhsValue;
-
- // Like ContainerEq, we make a copy of rhs in case the elements in
- // it are modified after this matcher is created.
- PointwiseMatcher(const TupleMatcher& tuple_matcher, const RhsContainer& rhs)
- : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) {
- // Makes sure the user doesn't instantiate this class template
- // with a const or reference type.
- (void)testing::StaticAssertTypeEq<RhsContainer,
- GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>();
- }
-
- template <typename LhsContainer>
- operator Matcher<LhsContainer>() const {
- GTEST_COMPILE_ASSERT_(
- !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)>::value,
- use_UnorderedPointwise_with_hash_tables);
-
- return MakeMatcher(new Impl<LhsContainer>(tuple_matcher_, rhs_));
- }
-
- template <typename LhsContainer>
- class Impl : public MatcherInterface<LhsContainer> {
- public:
- typedef internal::StlContainerView<
- GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)> LhsView;
- typedef typename LhsView::type LhsStlContainer;
- typedef typename LhsView::const_reference LhsStlContainerReference;
- typedef typename LhsStlContainer::value_type LhsValue;
- // We pass the LHS value and the RHS value to the inner matcher by
- // reference, as they may be expensive to copy. We must use tuple
- // instead of pair here, as a pair cannot hold references (C++ 98,
- // 20.2.2 [lib.pairs]).
- typedef ::testing::tuple<const LhsValue&, const RhsValue&> InnerMatcherArg;
-
- Impl(const TupleMatcher& tuple_matcher, const RhsStlContainer& rhs)
- // mono_tuple_matcher_ holds a monomorphic version of the tuple matcher.
- : mono_tuple_matcher_(SafeMatcherCast<InnerMatcherArg>(tuple_matcher)),
- rhs_(rhs) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "contains " << rhs_.size()
- << " values, where each value and its corresponding value in ";
- UniversalPrinter<RhsStlContainer>::Print(rhs_, os);
- *os << " ";
- mono_tuple_matcher_.DescribeTo(os);
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't contain exactly " << rhs_.size()
- << " values, or contains a value x at some index i"
- << " where x and the i-th value of ";
- UniversalPrint(rhs_, os);
- *os << " ";
- mono_tuple_matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(LhsContainer lhs,
- MatchResultListener* listener) const {
- LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
- const size_t actual_size = lhs_stl_container.size();
- if (actual_size != rhs_.size()) {
- *listener << "which contains " << actual_size << " values";
- return false;
- }
-
- typename LhsStlContainer::const_iterator left = lhs_stl_container.begin();
- typename RhsStlContainer::const_iterator right = rhs_.begin();
- for (size_t i = 0; i != actual_size; ++i, ++left, ++right) {
- if (listener->IsInterested()) {
- StringMatchResultListener inner_listener;
- // Create InnerMatcherArg as a temporarily object to avoid it outlives
- // *left and *right. Dereference or the conversion to `const T&` may
- // return temp objects, e.g for vector<bool>.
- if (!mono_tuple_matcher_.MatchAndExplain(
- InnerMatcherArg(ImplicitCast_<const LhsValue&>(*left),
- ImplicitCast_<const RhsValue&>(*right)),
- &inner_listener)) {
- *listener << "where the value pair (";
- UniversalPrint(*left, listener->stream());
- *listener << ", ";
- UniversalPrint(*right, listener->stream());
- *listener << ") at index #" << i << " don't match";
- PrintIfNotEmpty(inner_listener.str(), listener->stream());
- return false;
- }
- } else {
- if (!mono_tuple_matcher_.Matches(
- InnerMatcherArg(ImplicitCast_<const LhsValue&>(*left),
- ImplicitCast_<const RhsValue&>(*right))))
- return false;
- }
- }
-
- return true;
- }
-
- private:
- const Matcher<InnerMatcherArg> mono_tuple_matcher_;
- const RhsStlContainer rhs_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- private:
- const TupleMatcher tuple_matcher_;
- const RhsStlContainer rhs_;
-
- GTEST_DISALLOW_ASSIGN_(PointwiseMatcher);
-};
-
-// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl.
-template <typename Container>
-class QuantifierMatcherImpl : public MatcherInterface<Container> {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
- typedef StlContainerView<RawContainer> View;
- typedef typename View::type StlContainer;
- typedef typename View::const_reference StlContainerReference;
- typedef typename StlContainer::value_type Element;
-
- template <typename InnerMatcher>
- explicit QuantifierMatcherImpl(InnerMatcher inner_matcher)
- : inner_matcher_(
- testing::SafeMatcherCast<const Element&>(inner_matcher)) {}
-
- // Checks whether:
- // * All elements in the container match, if all_elements_should_match.
- // * Any element in the container matches, if !all_elements_should_match.
- bool MatchAndExplainImpl(bool all_elements_should_match,
- Container container,
- MatchResultListener* listener) const {
- StlContainerReference stl_container = View::ConstReference(container);
- size_t i = 0;
- for (typename StlContainer::const_iterator it = stl_container.begin();
- it != stl_container.end(); ++it, ++i) {
- StringMatchResultListener inner_listener;
- const bool matches = inner_matcher_.MatchAndExplain(*it, &inner_listener);
-
- if (matches != all_elements_should_match) {
- *listener << "whose element #" << i
- << (matches ? " matches" : " doesn't match");
- PrintIfNotEmpty(inner_listener.str(), listener->stream());
- return !all_elements_should_match;
- }
- }
- return all_elements_should_match;
- }
-
- protected:
- const Matcher<const Element&> inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl);
-};
-
-// Implements Contains(element_matcher) for the given argument type Container.
-// Symmetric to EachMatcherImpl.
-template <typename Container>
-class ContainsMatcherImpl : public QuantifierMatcherImpl<Container> {
- public:
- template <typename InnerMatcher>
- explicit ContainsMatcherImpl(InnerMatcher inner_matcher)
- : QuantifierMatcherImpl<Container>(inner_matcher) {}
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "contains at least one element that ";
- this->inner_matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't contain any element that ";
- this->inner_matcher_.DescribeTo(os);
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
- return this->MatchAndExplainImpl(false, container, listener);
- }
-
- private:
- GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl);
-};
-
-// Implements Each(element_matcher) for the given argument type Container.
-// Symmetric to ContainsMatcherImpl.
-template <typename Container>
-class EachMatcherImpl : public QuantifierMatcherImpl<Container> {
- public:
- template <typename InnerMatcher>
- explicit EachMatcherImpl(InnerMatcher inner_matcher)
- : QuantifierMatcherImpl<Container>(inner_matcher) {}
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "only contains elements that ";
- this->inner_matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "contains some element that ";
- this->inner_matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
- return this->MatchAndExplainImpl(true, container, listener);
- }
-
- private:
- GTEST_DISALLOW_ASSIGN_(EachMatcherImpl);
-};
-
-// Implements polymorphic Contains(element_matcher).
-template <typename M>
-class ContainsMatcher {
- public:
- explicit ContainsMatcher(M m) : inner_matcher_(m) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_));
- }
-
- private:
- const M inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(ContainsMatcher);
-};
-
-// Implements polymorphic Each(element_matcher).
-template <typename M>
-class EachMatcher {
- public:
- explicit EachMatcher(M m) : inner_matcher_(m) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new EachMatcherImpl<Container>(inner_matcher_));
- }
-
- private:
- const M inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(EachMatcher);
-};
-
-struct Rank1 {};
-struct Rank0 : Rank1 {};
-
-namespace pair_getters {
-#if GTEST_LANG_CXX11
-using std::get;
-template <typename T>
-auto First(T& x, Rank1) -> decltype(get<0>(x)) { // NOLINT
- return get<0>(x);
-}
-template <typename T>
-auto First(T& x, Rank0) -> decltype((x.first)) { // NOLINT
- return x.first;
-}
-
-template <typename T>
-auto Second(T& x, Rank1) -> decltype(get<1>(x)) { // NOLINT
- return get<1>(x);
-}
-template <typename T>
-auto Second(T& x, Rank0) -> decltype((x.second)) { // NOLINT
- return x.second;
-}
-#else
-template <typename T>
-typename T::first_type& First(T& x, Rank0) { // NOLINT
- return x.first;
-}
-template <typename T>
-const typename T::first_type& First(const T& x, Rank0) {
- return x.first;
-}
-
-template <typename T>
-typename T::second_type& Second(T& x, Rank0) { // NOLINT
- return x.second;
-}
-template <typename T>
-const typename T::second_type& Second(const T& x, Rank0) {
- return x.second;
-}
-#endif // GTEST_LANG_CXX11
-} // namespace pair_getters
-
-// Implements Key(inner_matcher) for the given argument pair type.
-// Key(inner_matcher) matches an std::pair whose 'first' field matches
-// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an
-// std::map that contains at least one element whose key is >= 5.
-template <typename PairType>
-class KeyMatcherImpl : public MatcherInterface<PairType> {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType;
- typedef typename RawPairType::first_type KeyType;
-
- template <typename InnerMatcher>
- explicit KeyMatcherImpl(InnerMatcher inner_matcher)
- : inner_matcher_(
- testing::SafeMatcherCast<const KeyType&>(inner_matcher)) {
- }
-
- // Returns true iff 'key_value.first' (the key) matches the inner matcher.
- virtual bool MatchAndExplain(PairType key_value,
- MatchResultListener* listener) const {
- StringMatchResultListener inner_listener;
- const bool match = inner_matcher_.MatchAndExplain(
- pair_getters::First(key_value, Rank0()), &inner_listener);
- const std::string explanation = inner_listener.str();
- if (explanation != "") {
- *listener << "whose first field is a value " << explanation;
- }
- return match;
- }
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "has a key that ";
- inner_matcher_.DescribeTo(os);
- }
-
- // Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't have a key that ";
- inner_matcher_.DescribeTo(os);
- }
-
- private:
- const Matcher<const KeyType&> inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl);
-};
-
-// Implements polymorphic Key(matcher_for_key).
-template <typename M>
-class KeyMatcher {
- public:
- explicit KeyMatcher(M m) : matcher_for_key_(m) {}
-
- template <typename PairType>
- operator Matcher<PairType>() const {
- return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_));
- }
-
- private:
- const M matcher_for_key_;
-
- GTEST_DISALLOW_ASSIGN_(KeyMatcher);
-};
-
-// Implements Pair(first_matcher, second_matcher) for the given argument pair
-// type with its two matchers. See Pair() function below.
-template <typename PairType>
-class PairMatcherImpl : public MatcherInterface<PairType> {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType;
- typedef typename RawPairType::first_type FirstType;
- typedef typename RawPairType::second_type SecondType;
-
- template <typename FirstMatcher, typename SecondMatcher>
- PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher)
- : first_matcher_(
- testing::SafeMatcherCast<const FirstType&>(first_matcher)),
- second_matcher_(
- testing::SafeMatcherCast<const SecondType&>(second_matcher)) {
- }
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "has a first field that ";
- first_matcher_.DescribeTo(os);
- *os << ", and has a second field that ";
- second_matcher_.DescribeTo(os);
- }
-
- // Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "has a first field that ";
- first_matcher_.DescribeNegationTo(os);
- *os << ", or has a second field that ";
- second_matcher_.DescribeNegationTo(os);
- }
-
- // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second'
- // matches second_matcher.
- virtual bool MatchAndExplain(PairType a_pair,
- MatchResultListener* listener) const {
- if (!listener->IsInterested()) {
- // If the listener is not interested, we don't need to construct the
- // explanation.
- return first_matcher_.Matches(pair_getters::First(a_pair, Rank0())) &&
- second_matcher_.Matches(pair_getters::Second(a_pair, Rank0()));
- }
- StringMatchResultListener first_inner_listener;
- if (!first_matcher_.MatchAndExplain(pair_getters::First(a_pair, Rank0()),
- &first_inner_listener)) {
- *listener << "whose first field does not match";
- PrintIfNotEmpty(first_inner_listener.str(), listener->stream());
- return false;
- }
- StringMatchResultListener second_inner_listener;
- if (!second_matcher_.MatchAndExplain(pair_getters::Second(a_pair, Rank0()),
- &second_inner_listener)) {
- *listener << "whose second field does not match";
- PrintIfNotEmpty(second_inner_listener.str(), listener->stream());
- return false;
- }
- ExplainSuccess(first_inner_listener.str(), second_inner_listener.str(),
- listener);
- return true;
- }
-
- private:
- void ExplainSuccess(const std::string& first_explanation,
- const std::string& second_explanation,
- MatchResultListener* listener) const {
- *listener << "whose both fields match";
- if (first_explanation != "") {
- *listener << ", where the first field is a value " << first_explanation;
- }
- if (second_explanation != "") {
- *listener << ", ";
- if (first_explanation != "") {
- *listener << "and ";
- } else {
- *listener << "where ";
- }
- *listener << "the second field is a value " << second_explanation;
- }
- }
-
- const Matcher<const FirstType&> first_matcher_;
- const Matcher<const SecondType&> second_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PairMatcherImpl);
-};
-
-// Implements polymorphic Pair(first_matcher, second_matcher).
-template <typename FirstMatcher, typename SecondMatcher>
-class PairMatcher {
- public:
- PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher)
- : first_matcher_(first_matcher), second_matcher_(second_matcher) {}
-
- template <typename PairType>
- operator Matcher<PairType> () const {
- return MakeMatcher(
- new PairMatcherImpl<PairType>(
- first_matcher_, second_matcher_));
- }
-
- private:
- const FirstMatcher first_matcher_;
- const SecondMatcher second_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PairMatcher);
-};
-
-// Implements ElementsAre() and ElementsAreArray().
-template <typename Container>
-class ElementsAreMatcherImpl : public MatcherInterface<Container> {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
- typedef internal::StlContainerView<RawContainer> View;
- typedef typename View::type StlContainer;
- typedef typename View::const_reference StlContainerReference;
- typedef typename StlContainer::value_type Element;
-
- // Constructs the matcher from a sequence of element values or
- // element matchers.
- template <typename InputIter>
- ElementsAreMatcherImpl(InputIter first, InputIter last) {
- while (first != last) {
- matchers_.push_back(MatcherCast<const Element&>(*first++));
- }
- }
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- if (count() == 0) {
- *os << "is empty";
- } else if (count() == 1) {
- *os << "has 1 element that ";
- matchers_[0].DescribeTo(os);
- } else {
- *os << "has " << Elements(count()) << " where\n";
- for (size_t i = 0; i != count(); ++i) {
- *os << "element #" << i << " ";
- matchers_[i].DescribeTo(os);
- if (i + 1 < count()) {
- *os << ",\n";
- }
- }
- }
- }
-
- // Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- if (count() == 0) {
- *os << "isn't empty";
- return;
- }
-
- *os << "doesn't have " << Elements(count()) << ", or\n";
- for (size_t i = 0; i != count(); ++i) {
- *os << "element #" << i << " ";
- matchers_[i].DescribeNegationTo(os);
- if (i + 1 < count()) {
- *os << ", or\n";
- }
- }
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
- // To work with stream-like "containers", we must only walk
- // through the elements in one pass.
-
- const bool listener_interested = listener->IsInterested();
-
- // explanations[i] is the explanation of the element at index i.
- ::std::vector<std::string> explanations(count());
- StlContainerReference stl_container = View::ConstReference(container);
- typename StlContainer::const_iterator it = stl_container.begin();
- size_t exam_pos = 0;
- bool mismatch_found = false; // Have we found a mismatched element yet?
-
- // Go through the elements and matchers in pairs, until we reach
- // the end of either the elements or the matchers, or until we find a
- // mismatch.
- for (; it != stl_container.end() && exam_pos != count(); ++it, ++exam_pos) {
- bool match; // Does the current element match the current matcher?
- if (listener_interested) {
- StringMatchResultListener s;
- match = matchers_[exam_pos].MatchAndExplain(*it, &s);
- explanations[exam_pos] = s.str();
- } else {
- match = matchers_[exam_pos].Matches(*it);
- }
-
- if (!match) {
- mismatch_found = true;
- break;
- }
- }
- // If mismatch_found is true, 'exam_pos' is the index of the mismatch.
-
- // Find how many elements the actual container has. We avoid
- // calling size() s.t. this code works for stream-like "containers"
- // that don't define size().
- size_t actual_count = exam_pos;
- for (; it != stl_container.end(); ++it) {
- ++actual_count;
- }
-
- if (actual_count != count()) {
- // The element count doesn't match. If the container is empty,
- // there's no need to explain anything as Google Mock already
- // prints the empty container. Otherwise we just need to show
- // how many elements there actually are.
- if (listener_interested && (actual_count != 0)) {
- *listener << "which has " << Elements(actual_count);
- }
- return false;
- }
-
- if (mismatch_found) {
- // The element count matches, but the exam_pos-th element doesn't match.
- if (listener_interested) {
- *listener << "whose element #" << exam_pos << " doesn't match";
- PrintIfNotEmpty(explanations[exam_pos], listener->stream());
- }
- return false;
- }
-
- // Every element matches its expectation. We need to explain why
- // (the obvious ones can be skipped).
- if (listener_interested) {
- bool reason_printed = false;
- for (size_t i = 0; i != count(); ++i) {
- const std::string& s = explanations[i];
- if (!s.empty()) {
- if (reason_printed) {
- *listener << ",\nand ";
- }
- *listener << "whose element #" << i << " matches, " << s;
- reason_printed = true;
- }
- }
- }
- return true;
- }
-
- private:
- static Message Elements(size_t count) {
- return Message() << count << (count == 1 ? " element" : " elements");
- }
-
- size_t count() const { return matchers_.size(); }
-
- ::std::vector<Matcher<const Element&> > matchers_;
-
- GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl);
-};
-
-// Connectivity matrix of (elements X matchers), in element-major order.
-// Initially, there are no edges.
-// Use NextGraph() to iterate over all possible edge configurations.
-// Use Randomize() to generate a random edge configuration.
-class GTEST_API_ MatchMatrix {
- public:
- MatchMatrix(size_t num_elements, size_t num_matchers)
- : num_elements_(num_elements),
- num_matchers_(num_matchers),
- matched_(num_elements_* num_matchers_, 0) {
- }
-
- size_t LhsSize() const { return num_elements_; }
- size_t RhsSize() const { return num_matchers_; }
- bool HasEdge(size_t ilhs, size_t irhs) const {
- return matched_[SpaceIndex(ilhs, irhs)] == 1;
- }
- void SetEdge(size_t ilhs, size_t irhs, bool b) {
- matched_[SpaceIndex(ilhs, irhs)] = b ? 1 : 0;
- }
-
- // Treating the connectivity matrix as a (LhsSize()*RhsSize())-bit number,
- // adds 1 to that number; returns false if incrementing the graph left it
- // empty.
- bool NextGraph();
-
- void Randomize();
-
- std::string DebugString() const;
-
- private:
- size_t SpaceIndex(size_t ilhs, size_t irhs) const {
- return ilhs * num_matchers_ + irhs;
- }
-
- size_t num_elements_;
- size_t num_matchers_;
-
- // Each element is a char interpreted as bool. They are stored as a
- // flattened array in lhs-major order, use 'SpaceIndex()' to translate
- // a (ilhs, irhs) matrix coordinate into an offset.
- ::std::vector<char> matched_;
-};
-
-typedef ::std::pair<size_t, size_t> ElementMatcherPair;
-typedef ::std::vector<ElementMatcherPair> ElementMatcherPairs;
-
-// Returns a maximum bipartite matching for the specified graph 'g'.
-// The matching is represented as a vector of {element, matcher} pairs.
-GTEST_API_ ElementMatcherPairs
-FindMaxBipartiteMatching(const MatchMatrix& g);
-
-struct UnorderedMatcherRequire {
- enum Flags {
- Superset = 1 << 0,
- Subset = 1 << 1,
- ExactMatch = Superset | Subset,
- };
-};
-
-// Untyped base class for implementing UnorderedElementsAre. By
-// putting logic that's not specific to the element type here, we
-// reduce binary bloat and increase compilation speed.
-class GTEST_API_ UnorderedElementsAreMatcherImplBase {
- protected:
- explicit UnorderedElementsAreMatcherImplBase(
- UnorderedMatcherRequire::Flags matcher_flags)
- : match_flags_(matcher_flags) {}
-
- // A vector of matcher describers, one for each element matcher.
- // Does not own the describers (and thus can be used only when the
- // element matchers are alive).
- typedef ::std::vector<const MatcherDescriberInterface*> MatcherDescriberVec;
-
- // Describes this UnorderedElementsAre matcher.
- void DescribeToImpl(::std::ostream* os) const;
-
- // Describes the negation of this UnorderedElementsAre matcher.
- void DescribeNegationToImpl(::std::ostream* os) const;
-
- bool VerifyMatchMatrix(const ::std::vector<std::string>& element_printouts,
- const MatchMatrix& matrix,
- MatchResultListener* listener) const;
-
- bool FindPairing(const MatchMatrix& matrix,
- MatchResultListener* listener) const;
-
- MatcherDescriberVec& matcher_describers() {
- return matcher_describers_;
- }
-
- static Message Elements(size_t n) {
- return Message() << n << " element" << (n == 1 ? "" : "s");
- }
-
- UnorderedMatcherRequire::Flags match_flags() const { return match_flags_; }
-
- private:
- UnorderedMatcherRequire::Flags match_flags_;
- MatcherDescriberVec matcher_describers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImplBase);
-};
-
-// Implements UnorderedElementsAre, UnorderedElementsAreArray, IsSubsetOf, and
-// IsSupersetOf.
-template <typename Container>
-class UnorderedElementsAreMatcherImpl
- : public MatcherInterface<Container>,
- public UnorderedElementsAreMatcherImplBase {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
- typedef internal::StlContainerView<RawContainer> View;
- typedef typename View::type StlContainer;
- typedef typename View::const_reference StlContainerReference;
- typedef typename StlContainer::const_iterator StlContainerConstIterator;
- typedef typename StlContainer::value_type Element;
-
- template <typename InputIter>
- UnorderedElementsAreMatcherImpl(UnorderedMatcherRequire::Flags matcher_flags,
- InputIter first, InputIter last)
- : UnorderedElementsAreMatcherImplBase(matcher_flags) {
- for (; first != last; ++first) {
- matchers_.push_back(MatcherCast<const Element&>(*first));
- matcher_describers().push_back(matchers_.back().GetDescriber());
- }
- }
-
- // Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
- return UnorderedElementsAreMatcherImplBase::DescribeToImpl(os);
- }
-
- // Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- return UnorderedElementsAreMatcherImplBase::DescribeNegationToImpl(os);
- }
-
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
- StlContainerReference stl_container = View::ConstReference(container);
- ::std::vector<std::string> element_printouts;
- MatchMatrix matrix =
- AnalyzeElements(stl_container.begin(), stl_container.end(),
- &element_printouts, listener);
-
- if (matrix.LhsSize() == 0 && matrix.RhsSize() == 0) {
- return true;
- }
-
- if (match_flags() == UnorderedMatcherRequire::ExactMatch) {
- if (matrix.LhsSize() != matrix.RhsSize()) {
- // The element count doesn't match. If the container is empty,
- // there's no need to explain anything as Google Mock already
- // prints the empty container. Otherwise we just need to show
- // how many elements there actually are.
- if (matrix.LhsSize() != 0 && listener->IsInterested()) {
- *listener << "which has " << Elements(matrix.LhsSize());
- }
- return false;
- }
- }
-
- return VerifyMatchMatrix(element_printouts, matrix, listener) &&
- FindPairing(matrix, listener);
- }
-
- private:
- template <typename ElementIter>
- MatchMatrix AnalyzeElements(ElementIter elem_first, ElementIter elem_last,
- ::std::vector<std::string>* element_printouts,
- MatchResultListener* listener) const {
- element_printouts->clear();
- ::std::vector<char> did_match;
- size_t num_elements = 0;
- for (; elem_first != elem_last; ++num_elements, ++elem_first) {
- if (listener->IsInterested()) {
- element_printouts->push_back(PrintToString(*elem_first));
- }
- for (size_t irhs = 0; irhs != matchers_.size(); ++irhs) {
- did_match.push_back(Matches(matchers_[irhs])(*elem_first));
- }
- }
-
- MatchMatrix matrix(num_elements, matchers_.size());
- ::std::vector<char>::const_iterator did_match_iter = did_match.begin();
- for (size_t ilhs = 0; ilhs != num_elements; ++ilhs) {
- for (size_t irhs = 0; irhs != matchers_.size(); ++irhs) {
- matrix.SetEdge(ilhs, irhs, *did_match_iter++ != 0);
- }
- }
- return matrix;
- }
-
- ::std::vector<Matcher<const Element&> > matchers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImpl);
-};
-
-// Functor for use in TransformTuple.
-// Performs MatcherCast<Target> on an input argument of any type.
-template <typename Target>
-struct CastAndAppendTransform {
- template <typename Arg>
- Matcher<Target> operator()(const Arg& a) const {
- return MatcherCast<Target>(a);
- }
-};
-
-// Implements UnorderedElementsAre.
-template <typename MatcherTuple>
-class UnorderedElementsAreMatcher {
- public:
- explicit UnorderedElementsAreMatcher(const MatcherTuple& args)
- : matchers_(args) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
- typedef typename internal::StlContainerView<RawContainer>::type View;
- typedef typename View::value_type Element;
- typedef ::std::vector<Matcher<const Element&> > MatcherVec;
- MatcherVec matchers;
- matchers.reserve(::testing::tuple_size<MatcherTuple>::value);
- TransformTupleValues(CastAndAppendTransform<const Element&>(), matchers_,
- ::std::back_inserter(matchers));
- return MakeMatcher(new UnorderedElementsAreMatcherImpl<Container>(
- UnorderedMatcherRequire::ExactMatch, matchers.begin(), matchers.end()));
- }
-
- private:
- const MatcherTuple matchers_;
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcher);
-};
-
-// Implements ElementsAre.
-template <typename MatcherTuple>
-class ElementsAreMatcher {
- public:
- explicit ElementsAreMatcher(const MatcherTuple& args) : matchers_(args) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- GTEST_COMPILE_ASSERT_(
- !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>::value ||
- ::testing::tuple_size<MatcherTuple>::value < 2,
- use_UnorderedElementsAre_with_hash_tables);
-
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
- typedef typename internal::StlContainerView<RawContainer>::type View;
- typedef typename View::value_type Element;
- typedef ::std::vector<Matcher<const Element&> > MatcherVec;
- MatcherVec matchers;
- matchers.reserve(::testing::tuple_size<MatcherTuple>::value);
- TransformTupleValues(CastAndAppendTransform<const Element&>(), matchers_,
- ::std::back_inserter(matchers));
- return MakeMatcher(new ElementsAreMatcherImpl<Container>(
- matchers.begin(), matchers.end()));
- }
-
- private:
- const MatcherTuple matchers_;
- GTEST_DISALLOW_ASSIGN_(ElementsAreMatcher);
-};
-
-// Implements UnorderedElementsAreArray(), IsSubsetOf(), and IsSupersetOf().
-template <typename T>
-class UnorderedElementsAreArrayMatcher {
- public:
- template <typename Iter>
- UnorderedElementsAreArrayMatcher(UnorderedMatcherRequire::Flags match_flags,
- Iter first, Iter last)
- : match_flags_(match_flags), matchers_(first, last) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new UnorderedElementsAreMatcherImpl<Container>(
- match_flags_, matchers_.begin(), matchers_.end()));
- }
-
- private:
- UnorderedMatcherRequire::Flags match_flags_;
- ::std::vector<T> matchers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreArrayMatcher);
-};
-
-// Implements ElementsAreArray().
-template <typename T>
-class ElementsAreArrayMatcher {
- public:
- template <typename Iter>
- ElementsAreArrayMatcher(Iter first, Iter last) : matchers_(first, last) {}
-
- template <typename Container>
- operator Matcher<Container>() const {
- GTEST_COMPILE_ASSERT_(
- !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>::value,
- use_UnorderedElementsAreArray_with_hash_tables);
-
- return MakeMatcher(new ElementsAreMatcherImpl<Container>(
- matchers_.begin(), matchers_.end()));
- }
-
- private:
- const ::std::vector<T> matchers_;
-
- GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher);
-};
-
-// Given a 2-tuple matcher tm of type Tuple2Matcher and a value second
-// of type Second, BoundSecondMatcher<Tuple2Matcher, Second>(tm,
-// second) is a polymorphic matcher that matches a value x iff tm
-// matches tuple (x, second). Useful for implementing
-// UnorderedPointwise() in terms of UnorderedElementsAreArray().
-//
-// BoundSecondMatcher is copyable and assignable, as we need to put
-// instances of this class in a vector when implementing
-// UnorderedPointwise().
-template <typename Tuple2Matcher, typename Second>
-class BoundSecondMatcher {
- public:
- BoundSecondMatcher(const Tuple2Matcher& tm, const Second& second)
- : tuple2_matcher_(tm), second_value_(second) {}
-
- template <typename T>
- operator Matcher<T>() const {
- return MakeMatcher(new Impl<T>(tuple2_matcher_, second_value_));
- }
-
- // We have to define this for UnorderedPointwise() to compile in
- // C++98 mode, as it puts BoundSecondMatcher instances in a vector,
- // which requires the elements to be assignable in C++98. The
- // compiler cannot generate the operator= for us, as Tuple2Matcher
- // and Second may not be assignable.
- //
- // However, this should never be called, so the implementation just
- // need to assert.
- void operator=(const BoundSecondMatcher& /*rhs*/) {
- GTEST_LOG_(FATAL) << "BoundSecondMatcher should never be assigned.";
- }
-
- private:
- template <typename T>
- class Impl : public MatcherInterface<T> {
- public:
- typedef ::testing::tuple<T, Second> ArgTuple;
-
- Impl(const Tuple2Matcher& tm, const Second& second)
- : mono_tuple2_matcher_(SafeMatcherCast<const ArgTuple&>(tm)),
- second_value_(second) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "and ";
- UniversalPrint(second_value_, os);
- *os << " ";
- mono_tuple2_matcher_.DescribeTo(os);
- }
-
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
- return mono_tuple2_matcher_.MatchAndExplain(ArgTuple(x, second_value_),
- listener);
- }
-
- private:
- const Matcher<const ArgTuple&> mono_tuple2_matcher_;
- const Second second_value_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- const Tuple2Matcher tuple2_matcher_;
- const Second second_value_;
-};
-
-// Given a 2-tuple matcher tm and a value second,
-// MatcherBindSecond(tm, second) returns a matcher that matches a
-// value x iff tm matches tuple (x, second). Useful for implementing
-// UnorderedPointwise() in terms of UnorderedElementsAreArray().
-template <typename Tuple2Matcher, typename Second>
-BoundSecondMatcher<Tuple2Matcher, Second> MatcherBindSecond(
- const Tuple2Matcher& tm, const Second& second) {
- return BoundSecondMatcher<Tuple2Matcher, Second>(tm, second);
-}
-
-// Returns the description for a matcher defined using the MATCHER*()
-// macro where the user-supplied description string is "", if
-// 'negation' is false; otherwise returns the description of the
-// negation of the matcher. 'param_values' contains a list of strings
-// that are the print-out of the matcher's parameters.
-GTEST_API_ std::string FormatMatcherDescription(bool negation,
- const char* matcher_name,
- const Strings& param_values);
-
-// Implements a matcher that checks the value of a optional<> type variable.
-template <typename ValueMatcher>
-class OptionalMatcher {
- public:
- explicit OptionalMatcher(const ValueMatcher& value_matcher)
- : value_matcher_(value_matcher) {}
-
- template <typename Optional>
- operator Matcher<Optional>() const {
- return MakeMatcher(new Impl<Optional>(value_matcher_));
- }
-
- template <typename Optional>
- class Impl : public MatcherInterface<Optional> {
- public:
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Optional) OptionalView;
- typedef typename OptionalView::value_type ValueType;
- explicit Impl(const ValueMatcher& value_matcher)
- : value_matcher_(MatcherCast<ValueType>(value_matcher)) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- *os << "value ";
- value_matcher_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "value ";
- value_matcher_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(Optional optional,
- MatchResultListener* listener) const {
- if (!optional) {
- *listener << "which is not engaged";
- return false;
- }
- const ValueType& value = *optional;
- StringMatchResultListener value_listener;
- const bool match = value_matcher_.MatchAndExplain(value, &value_listener);
- *listener << "whose value " << PrintToString(value)
- << (match ? " matches" : " doesn't match");
- PrintIfNotEmpty(value_listener.str(), listener->stream());
- return match;
- }
-
- private:
- const Matcher<ValueType> value_matcher_;
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
-
- private:
- const ValueMatcher value_matcher_;
- GTEST_DISALLOW_ASSIGN_(OptionalMatcher);
-};
-
-namespace variant_matcher {
-// Overloads to allow VariantMatcher to do proper ADL lookup.
-template <typename T>
-void holds_alternative() {}
-template <typename T>
-void get() {}
-
-// Implements a matcher that checks the value of a variant<> type variable.
-template <typename T>
-class VariantMatcher {
- public:
- explicit VariantMatcher(::testing::Matcher<const T&> matcher)
- : matcher_(internal::move(matcher)) {}
-
- template <typename Variant>
- bool MatchAndExplain(const Variant& value,
- ::testing::MatchResultListener* listener) const {
- if (!listener->IsInterested()) {
- return holds_alternative<T>(value) && matcher_.Matches(get<T>(value));
- }
-
- if (!holds_alternative<T>(value)) {
- *listener << "whose value is not of type '" << GetTypeName() << "'";
- return false;
- }
-
- const T& elem = get<T>(value);
- StringMatchResultListener elem_listener;
- const bool match = matcher_.MatchAndExplain(elem, &elem_listener);
- *listener << "whose value " << PrintToString(elem)
- << (match ? " matches" : " doesn't match");
- PrintIfNotEmpty(elem_listener.str(), listener->stream());
- return match;
- }
-
- void DescribeTo(std::ostream* os) const {
- *os << "is a variant<> with value of type '" << GetTypeName()
- << "' and the value ";
- matcher_.DescribeTo(os);
- }
-
- void DescribeNegationTo(std::ostream* os) const {
- *os << "is a variant<> with value of type other than '" << GetTypeName()
- << "' or the value ";
- matcher_.DescribeNegationTo(os);
- }
-
- private:
- static std::string GetTypeName() {
-#if GTEST_HAS_RTTI
- GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(
- return internal::GetTypeName<T>());
-#endif
- return "the element type";
- }
-
- const ::testing::Matcher<const T&> matcher_;
-};
-
-} // namespace variant_matcher
-
-namespace any_cast_matcher {
-
-// Overloads to allow AnyCastMatcher to do proper ADL lookup.
-template <typename T>
-void any_cast() {}
-
-// Implements a matcher that any_casts the value.
-template <typename T>
-class AnyCastMatcher {
- public:
- explicit AnyCastMatcher(const ::testing::Matcher<const T&>& matcher)
- : matcher_(matcher) {}
-
- template <typename AnyType>
- bool MatchAndExplain(const AnyType& value,
- ::testing::MatchResultListener* listener) const {
- if (!listener->IsInterested()) {
- const T* ptr = any_cast<T>(&value);
- return ptr != NULL && matcher_.Matches(*ptr);
- }
-
- const T* elem = any_cast<T>(&value);
- if (elem == NULL) {
- *listener << "whose value is not of type '" << GetTypeName() << "'";
- return false;
- }
-
- StringMatchResultListener elem_listener;
- const bool match = matcher_.MatchAndExplain(*elem, &elem_listener);
- *listener << "whose value " << PrintToString(*elem)
- << (match ? " matches" : " doesn't match");
- PrintIfNotEmpty(elem_listener.str(), listener->stream());
- return match;
- }
-
- void DescribeTo(std::ostream* os) const {
- *os << "is an 'any' type with value of type '" << GetTypeName()
- << "' and the value ";
- matcher_.DescribeTo(os);
- }
-
- void DescribeNegationTo(std::ostream* os) const {
- *os << "is an 'any' type with value of type other than '" << GetTypeName()
- << "' or the value ";
- matcher_.DescribeNegationTo(os);
- }
-
- private:
- static std::string GetTypeName() {
-#if GTEST_HAS_RTTI
- GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(
- return internal::GetTypeName<T>());
-#endif
- return "the element type";
- }
-
- const ::testing::Matcher<const T&> matcher_;
-};
-
-} // namespace any_cast_matcher
-} // namespace internal
-
-// ElementsAreArray(iterator_first, iterator_last)
-// ElementsAreArray(pointer, count)
-// ElementsAreArray(array)
-// ElementsAreArray(container)
-// ElementsAreArray({ e1, e2, ..., en })
-//
-// The ElementsAreArray() functions are like ElementsAre(...), except
-// that they are given a homogeneous sequence rather than taking each
-// element as a function argument. The sequence can be specified as an
-// array, a pointer and count, a vector, an initializer list, or an
-// STL iterator range. In each of these cases, the underlying sequence
-// can be either a sequence of values or a sequence of matchers.
-//
-// All forms of ElementsAreArray() make a copy of the input matcher sequence.
-
-template <typename Iter>
-inline internal::ElementsAreArrayMatcher<
- typename ::std::iterator_traits<Iter>::value_type>
-ElementsAreArray(Iter first, Iter last) {
- typedef typename ::std::iterator_traits<Iter>::value_type T;
- return internal::ElementsAreArrayMatcher<T>(first, last);
-}
-
-template <typename T>
-inline internal::ElementsAreArrayMatcher<T> ElementsAreArray(
- const T* pointer, size_t count) {
- return ElementsAreArray(pointer, pointer + count);
-}
-
-template <typename T, size_t N>
-inline internal::ElementsAreArrayMatcher<T> ElementsAreArray(
- const T (&array)[N]) {
- return ElementsAreArray(array, N);
-}
-
-template <typename Container>
-inline internal::ElementsAreArrayMatcher<typename Container::value_type>
-ElementsAreArray(const Container& container) {
- return ElementsAreArray(container.begin(), container.end());
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-template <typename T>
-inline internal::ElementsAreArrayMatcher<T>
-ElementsAreArray(::std::initializer_list<T> xs) {
- return ElementsAreArray(xs.begin(), xs.end());
-}
-#endif
-
-// UnorderedElementsAreArray(iterator_first, iterator_last)
-// UnorderedElementsAreArray(pointer, count)
-// UnorderedElementsAreArray(array)
-// UnorderedElementsAreArray(container)
-// UnorderedElementsAreArray({ e1, e2, ..., en })
-//
-// UnorderedElementsAreArray() verifies that a bijective mapping onto a
-// collection of matchers exists.
-//
-// The matchers can be specified as an array, a pointer and count, a container,
-// an initializer list, or an STL iterator range. In each of these cases, the
-// underlying matchers can be either values or matchers.
-
-template <typename Iter>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename ::std::iterator_traits<Iter>::value_type>
-UnorderedElementsAreArray(Iter first, Iter last) {
- typedef typename ::std::iterator_traits<Iter>::value_type T;
- return internal::UnorderedElementsAreArrayMatcher<T>(
- internal::UnorderedMatcherRequire::ExactMatch, first, last);
-}
-
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T>
-UnorderedElementsAreArray(const T* pointer, size_t count) {
- return UnorderedElementsAreArray(pointer, pointer + count);
-}
-
-template <typename T, size_t N>
-inline internal::UnorderedElementsAreArrayMatcher<T>
-UnorderedElementsAreArray(const T (&array)[N]) {
- return UnorderedElementsAreArray(array, N);
-}
-
-template <typename Container>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename Container::value_type>
-UnorderedElementsAreArray(const Container& container) {
- return UnorderedElementsAreArray(container.begin(), container.end());
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T>
-UnorderedElementsAreArray(::std::initializer_list<T> xs) {
- return UnorderedElementsAreArray(xs.begin(), xs.end());
-}
-#endif
-
-// _ is a matcher that matches anything of any type.
-//
-// This definition is fine as:
-//
-// 1. The C++ standard permits using the name _ in a namespace that
-// is not the global namespace or ::std.
-// 2. The AnythingMatcher class has no data member or constructor,
-// so it's OK to create global variables of this type.
-// 3. c-style has approved of using _ in this case.
-const internal::AnythingMatcher _ = {};
-// Creates a matcher that matches any value of the given type T.
-template <typename T>
-inline Matcher<T> A() {
- return Matcher<T>(new internal::AnyMatcherImpl<T>());
-}
-
-// Creates a matcher that matches any value of the given type T.
-template <typename T>
-inline Matcher<T> An() { return A<T>(); }
-
-// Creates a polymorphic matcher that matches anything equal to x.
-// Note: if the parameter of Eq() were declared as const T&, Eq("foo")
-// wouldn't compile.
-template <typename T>
-inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); }
-
-// Constructs a Matcher<T> from a 'value' of type T. The constructed
-// matcher matches any value that's equal to 'value'.
-template <typename T>
-Matcher<T>::Matcher(T value) { *this = Eq(value); }
-
-template <typename T, typename M>
-Matcher<T> internal::MatcherCastImpl<T, M>::CastImpl(
- const M& value,
- internal::BooleanConstant<false> /* convertible_to_matcher */,
- internal::BooleanConstant<false> /* convertible_to_T */) {
- return Eq(value);
-}
-
-// Creates a monomorphic matcher that matches anything with type Lhs
-// and equal to rhs. A user may need to use this instead of Eq(...)
-// in order to resolve an overloading ambiguity.
-//
-// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x))
-// or Matcher<T>(x), but more readable than the latter.
-//
-// We could define similar monomorphic matchers for other comparison
-// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do
-// it yet as those are used much less than Eq() in practice. A user
-// can always write Matcher<T>(Lt(5)) to be explicit about the type,
-// for example.
-template <typename Lhs, typename Rhs>
-inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); }
-
-// Creates a polymorphic matcher that matches anything >= x.
-template <typename Rhs>
-inline internal::GeMatcher<Rhs> Ge(Rhs x) {
- return internal::GeMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything > x.
-template <typename Rhs>
-inline internal::GtMatcher<Rhs> Gt(Rhs x) {
- return internal::GtMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything <= x.
-template <typename Rhs>
-inline internal::LeMatcher<Rhs> Le(Rhs x) {
- return internal::LeMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything < x.
-template <typename Rhs>
-inline internal::LtMatcher<Rhs> Lt(Rhs x) {
- return internal::LtMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything != x.
-template <typename Rhs>
-inline internal::NeMatcher<Rhs> Ne(Rhs x) {
- return internal::NeMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches any NULL pointer.
-inline PolymorphicMatcher<internal::IsNullMatcher > IsNull() {
- return MakePolymorphicMatcher(internal::IsNullMatcher());
-}
-
-// Creates a polymorphic matcher that matches any non-NULL pointer.
-// This is convenient as Not(NULL) doesn't compile (the compiler
-// thinks that that expression is comparing a pointer with an integer).
-inline PolymorphicMatcher<internal::NotNullMatcher > NotNull() {
- return MakePolymorphicMatcher(internal::NotNullMatcher());
-}
-
-// Creates a polymorphic matcher that matches any argument that
-// references variable x.
-template <typename T>
-inline internal::RefMatcher<T&> Ref(T& x) { // NOLINT
- return internal::RefMatcher<T&>(x);
-}
-
-// Creates a matcher that matches any double argument approximately
-// equal to rhs, where two NANs are considered unequal.
-inline internal::FloatingEqMatcher<double> DoubleEq(double rhs) {
- return internal::FloatingEqMatcher<double>(rhs, false);
-}
-
-// Creates a matcher that matches any double argument approximately
-// equal to rhs, including NaN values when rhs is NaN.
-inline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) {
- return internal::FloatingEqMatcher<double>(rhs, true);
-}
-
-// Creates a matcher that matches any double argument approximately equal to
-// rhs, up to the specified max absolute error bound, where two NANs are
-// considered unequal. The max absolute error bound must be non-negative.
-inline internal::FloatingEqMatcher<double> DoubleNear(
- double rhs, double max_abs_error) {
- return internal::FloatingEqMatcher<double>(rhs, false, max_abs_error);
-}
-
-// Creates a matcher that matches any double argument approximately equal to
-// rhs, up to the specified max absolute error bound, including NaN values when
-// rhs is NaN. The max absolute error bound must be non-negative.
-inline internal::FloatingEqMatcher<double> NanSensitiveDoubleNear(
- double rhs, double max_abs_error) {
- return internal::FloatingEqMatcher<double>(rhs, true, max_abs_error);
-}
-
-// Creates a matcher that matches any float argument approximately
-// equal to rhs, where two NANs are considered unequal.
-inline internal::FloatingEqMatcher<float> FloatEq(float rhs) {
- return internal::FloatingEqMatcher<float>(rhs, false);
-}
-
-// Creates a matcher that matches any float argument approximately
-// equal to rhs, including NaN values when rhs is NaN.
-inline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) {
- return internal::FloatingEqMatcher<float>(rhs, true);
-}
-
-// Creates a matcher that matches any float argument approximately equal to
-// rhs, up to the specified max absolute error bound, where two NANs are
-// considered unequal. The max absolute error bound must be non-negative.
-inline internal::FloatingEqMatcher<float> FloatNear(
- float rhs, float max_abs_error) {
- return internal::FloatingEqMatcher<float>(rhs, false, max_abs_error);
-}
-
-// Creates a matcher that matches any float argument approximately equal to
-// rhs, up to the specified max absolute error bound, including NaN values when
-// rhs is NaN. The max absolute error bound must be non-negative.
-inline internal::FloatingEqMatcher<float> NanSensitiveFloatNear(
- float rhs, float max_abs_error) {
- return internal::FloatingEqMatcher<float>(rhs, true, max_abs_error);
-}
-
-// Creates a matcher that matches a pointer (raw or smart) that points
-// to a value that matches inner_matcher.
-template <typename InnerMatcher>
-inline internal::PointeeMatcher<InnerMatcher> Pointee(
- const InnerMatcher& inner_matcher) {
- return internal::PointeeMatcher<InnerMatcher>(inner_matcher);
-}
-
-#if GTEST_HAS_RTTI
-// Creates a matcher that matches a pointer or reference that matches
-// inner_matcher when dynamic_cast<To> is applied.
-// The result of dynamic_cast<To> is forwarded to the inner matcher.
-// If To is a pointer and the cast fails, the inner matcher will receive NULL.
-// If To is a reference and the cast fails, this matcher returns false
-// immediately.
-template <typename To>
-inline PolymorphicMatcher<internal::WhenDynamicCastToMatcher<To> >
-WhenDynamicCastTo(const Matcher<To>& inner_matcher) {
- return MakePolymorphicMatcher(
- internal::WhenDynamicCastToMatcher<To>(inner_matcher));
-}
-#endif // GTEST_HAS_RTTI
-
-// Creates a matcher that matches an object whose given field matches
-// 'matcher'. For example,
-// Field(&Foo::number, Ge(5))
-// matches a Foo object x iff x.number >= 5.
-template <typename Class, typename FieldType, typename FieldMatcher>
-inline PolymorphicMatcher<
- internal::FieldMatcher<Class, FieldType> > Field(
- FieldType Class::*field, const FieldMatcher& matcher) {
- return MakePolymorphicMatcher(
- internal::FieldMatcher<Class, FieldType>(
- field, MatcherCast<const FieldType&>(matcher)));
- // The call to MatcherCast() is required for supporting inner
- // matchers of compatible types. For example, it allows
- // Field(&Foo::bar, m)
- // to compile where bar is an int32 and m is a matcher for int64.
-}
-
-// Same as Field() but also takes the name of the field to provide better error
-// messages.
-template <typename Class, typename FieldType, typename FieldMatcher>
-inline PolymorphicMatcher<internal::FieldMatcher<Class, FieldType> > Field(
- const std::string& field_name, FieldType Class::*field,
- const FieldMatcher& matcher) {
- return MakePolymorphicMatcher(internal::FieldMatcher<Class, FieldType>(
- field_name, field, MatcherCast<const FieldType&>(matcher)));
-}
-
-// Creates a matcher that matches an object whose given property
-// matches 'matcher'. For example,
-// Property(&Foo::str, StartsWith("hi"))
-// matches a Foo object x iff x.str() starts with "hi".
-template <typename Class, typename PropertyType, typename PropertyMatcher>
-inline PolymorphicMatcher<internal::PropertyMatcher<
- Class, PropertyType, PropertyType (Class::*)() const> >
-Property(PropertyType (Class::*property)() const,
- const PropertyMatcher& matcher) {
- return MakePolymorphicMatcher(
- internal::PropertyMatcher<Class, PropertyType,
- PropertyType (Class::*)() const>(
- property,
- MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
- // The call to MatcherCast() is required for supporting inner
- // matchers of compatible types. For example, it allows
- // Property(&Foo::bar, m)
- // to compile where bar() returns an int32 and m is a matcher for int64.
-}
-
-// Same as Property() above, but also takes the name of the property to provide
-// better error messages.
-template <typename Class, typename PropertyType, typename PropertyMatcher>
-inline PolymorphicMatcher<internal::PropertyMatcher<
- Class, PropertyType, PropertyType (Class::*)() const> >
-Property(const std::string& property_name,
- PropertyType (Class::*property)() const,
- const PropertyMatcher& matcher) {
- return MakePolymorphicMatcher(
- internal::PropertyMatcher<Class, PropertyType,
- PropertyType (Class::*)() const>(
- property_name, property,
- MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
-}
-
-#if GTEST_LANG_CXX11
-// The same as above but for reference-qualified member functions.
-template <typename Class, typename PropertyType, typename PropertyMatcher>
-inline PolymorphicMatcher<internal::PropertyMatcher<
- Class, PropertyType, PropertyType (Class::*)() const &> >
-Property(PropertyType (Class::*property)() const &,
- const PropertyMatcher& matcher) {
- return MakePolymorphicMatcher(
- internal::PropertyMatcher<Class, PropertyType,
- PropertyType (Class::*)() const &>(
- property,
- MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
-}
-
-// Three-argument form for reference-qualified member functions.
-template <typename Class, typename PropertyType, typename PropertyMatcher>
-inline PolymorphicMatcher<internal::PropertyMatcher<
- Class, PropertyType, PropertyType (Class::*)() const &> >
-Property(const std::string& property_name,
- PropertyType (Class::*property)() const &,
- const PropertyMatcher& matcher) {
- return MakePolymorphicMatcher(
- internal::PropertyMatcher<Class, PropertyType,
- PropertyType (Class::*)() const &>(
- property_name, property,
- MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
-}
-#endif
-
-// Creates a matcher that matches an object iff the result of applying
-// a callable to x matches 'matcher'.
-// For example,
-// ResultOf(f, StartsWith("hi"))
-// matches a Foo object x iff f(x) starts with "hi".
-// `callable` parameter can be a function, function pointer, or a functor. It is
-// required to keep no state affecting the results of the calls on it and make
-// no assumptions about how many calls will be made. Any state it keeps must be
-// protected from the concurrent access.
-template <typename Callable, typename InnerMatcher>
-internal::ResultOfMatcher<Callable, InnerMatcher> ResultOf(
- Callable callable, InnerMatcher matcher) {
- return internal::ResultOfMatcher<Callable, InnerMatcher>(
- internal::move(callable), internal::move(matcher));
-}
-
-// String matchers.
-
-// Matches a string equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrEq(
- const std::string& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::string>(str, true, true));
-}
-
-// Matches a string not equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrNe(
- const std::string& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::string>(str, false, true));
-}
-
-// Matches a string equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrCaseEq(
- const std::string& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::string>(str, true, false));
-}
-
-// Matches a string not equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrCaseNe(
- const std::string& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::string>(str, false, false));
-}
-
-// Creates a matcher that matches any string, std::string, or C string
-// that contains the given substring.
-inline PolymorphicMatcher<internal::HasSubstrMatcher<std::string> > HasSubstr(
- const std::string& substring) {
- return MakePolymorphicMatcher(
- internal::HasSubstrMatcher<std::string>(substring));
-}
-
-// Matches a string that starts with 'prefix' (case-sensitive).
-inline PolymorphicMatcher<internal::StartsWithMatcher<std::string> > StartsWith(
- const std::string& prefix) {
- return MakePolymorphicMatcher(
- internal::StartsWithMatcher<std::string>(prefix));
-}
-
-// Matches a string that ends with 'suffix' (case-sensitive).
-inline PolymorphicMatcher<internal::EndsWithMatcher<std::string> > EndsWith(
- const std::string& suffix) {
- return MakePolymorphicMatcher(internal::EndsWithMatcher<std::string>(suffix));
-}
-
-// Matches a string that fully matches regular expression 'regex'.
-// The matcher takes ownership of 'regex'.
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
- const internal::RE* regex) {
- return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true));
-}
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
- const std::string& regex) {
- return MatchesRegex(new internal::RE(regex));
-}
-
-// Matches a string that contains regular expression 'regex'.
-// The matcher takes ownership of 'regex'.
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
- const internal::RE* regex) {
- return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false));
-}
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
- const std::string& regex) {
- return ContainsRegex(new internal::RE(regex));
-}
-
-#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
-// Wide string matchers.
-
-// Matches a string equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> > StrEq(
- const std::wstring& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::wstring>(str, true, true));
-}
-
-// Matches a string not equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> > StrNe(
- const std::wstring& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::wstring>(str, false, true));
-}
-
-// Matches a string equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> >
-StrCaseEq(const std::wstring& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::wstring>(str, true, false));
-}
-
-// Matches a string not equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> >
-StrCaseNe(const std::wstring& str) {
- return MakePolymorphicMatcher(
- internal::StrEqualityMatcher<std::wstring>(str, false, false));
-}
-
-// Creates a matcher that matches any ::wstring, std::wstring, or C wide string
-// that contains the given substring.
-inline PolymorphicMatcher<internal::HasSubstrMatcher<std::wstring> > HasSubstr(
- const std::wstring& substring) {
- return MakePolymorphicMatcher(
- internal::HasSubstrMatcher<std::wstring>(substring));
-}
-
-// Matches a string that starts with 'prefix' (case-sensitive).
-inline PolymorphicMatcher<internal::StartsWithMatcher<std::wstring> >
-StartsWith(const std::wstring& prefix) {
- return MakePolymorphicMatcher(
- internal::StartsWithMatcher<std::wstring>(prefix));
-}
-
-// Matches a string that ends with 'suffix' (case-sensitive).
-inline PolymorphicMatcher<internal::EndsWithMatcher<std::wstring> > EndsWith(
- const std::wstring& suffix) {
- return MakePolymorphicMatcher(
- internal::EndsWithMatcher<std::wstring>(suffix));
-}
-
-#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field == the second field.
-inline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field >= the second field.
-inline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field > the second field.
-inline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field <= the second field.
-inline internal::Le2Matcher Le() { return internal::Le2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field < the second field.
-inline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where the
-// first field != the second field.
-inline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); }
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// FloatEq(first field) matches the second field.
-inline internal::FloatingEq2Matcher<float> FloatEq() {
- return internal::FloatingEq2Matcher<float>();
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// DoubleEq(first field) matches the second field.
-inline internal::FloatingEq2Matcher<double> DoubleEq() {
- return internal::FloatingEq2Matcher<double>();
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// FloatEq(first field) matches the second field with NaN equality.
-inline internal::FloatingEq2Matcher<float> NanSensitiveFloatEq() {
- return internal::FloatingEq2Matcher<float>(true);
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// DoubleEq(first field) matches the second field with NaN equality.
-inline internal::FloatingEq2Matcher<double> NanSensitiveDoubleEq() {
- return internal::FloatingEq2Matcher<double>(true);
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// FloatNear(first field, max_abs_error) matches the second field.
-inline internal::FloatingEq2Matcher<float> FloatNear(float max_abs_error) {
- return internal::FloatingEq2Matcher<float>(max_abs_error);
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// DoubleNear(first field, max_abs_error) matches the second field.
-inline internal::FloatingEq2Matcher<double> DoubleNear(double max_abs_error) {
- return internal::FloatingEq2Matcher<double>(max_abs_error);
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// FloatNear(first field, max_abs_error) matches the second field with NaN
-// equality.
-inline internal::FloatingEq2Matcher<float> NanSensitiveFloatNear(
- float max_abs_error) {
- return internal::FloatingEq2Matcher<float>(max_abs_error, true);
-}
-
-// Creates a polymorphic matcher that matches a 2-tuple where
-// DoubleNear(first field, max_abs_error) matches the second field with NaN
-// equality.
-inline internal::FloatingEq2Matcher<double> NanSensitiveDoubleNear(
- double max_abs_error) {
- return internal::FloatingEq2Matcher<double>(max_abs_error, true);
-}
-
-// Creates a matcher that matches any value of type T that m doesn't
-// match.
-template <typename InnerMatcher>
-inline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) {
- return internal::NotMatcher<InnerMatcher>(m);
-}
-
-// Returns a matcher that matches anything that satisfies the given
-// predicate. The predicate can be any unary function or functor
-// whose return type can be implicitly converted to bool.
-template <typename Predicate>
-inline PolymorphicMatcher<internal::TrulyMatcher<Predicate> >
-Truly(Predicate pred) {
- return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred));
-}
-
-// Returns a matcher that matches the container size. The container must
-// support both size() and size_type which all STL-like containers provide.
-// Note that the parameter 'size' can be a value of type size_type as well as
-// matcher. For instance:
-// EXPECT_THAT(container, SizeIs(2)); // Checks container has 2 elements.
-// EXPECT_THAT(container, SizeIs(Le(2)); // Checks container has at most 2.
-template <typename SizeMatcher>
-inline internal::SizeIsMatcher<SizeMatcher>
-SizeIs(const SizeMatcher& size_matcher) {
- return internal::SizeIsMatcher<SizeMatcher>(size_matcher);
-}
-
-// Returns a matcher that matches the distance between the container's begin()
-// iterator and its end() iterator, i.e. the size of the container. This matcher
-// can be used instead of SizeIs with containers such as std::forward_list which
-// do not implement size(). The container must provide const_iterator (with
-// valid iterator_traits), begin() and end().
-template <typename DistanceMatcher>
-inline internal::BeginEndDistanceIsMatcher<DistanceMatcher>
-BeginEndDistanceIs(const DistanceMatcher& distance_matcher) {
- return internal::BeginEndDistanceIsMatcher<DistanceMatcher>(distance_matcher);
-}
-
-// Returns a matcher that matches an equal container.
-// This matcher behaves like Eq(), but in the event of mismatch lists the
-// values that are included in one container but not the other. (Duplicate
-// values and order differences are not explained.)
-template <typename Container>
-inline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT
- GTEST_REMOVE_CONST_(Container)> >
- ContainerEq(const Container& rhs) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes Container to be a const type sometimes.
- typedef GTEST_REMOVE_CONST_(Container) RawContainer;
- return MakePolymorphicMatcher(
- internal::ContainerEqMatcher<RawContainer>(rhs));
-}
-
-// Returns a matcher that matches a container that, when sorted using
-// the given comparator, matches container_matcher.
-template <typename Comparator, typename ContainerMatcher>
-inline internal::WhenSortedByMatcher<Comparator, ContainerMatcher>
-WhenSortedBy(const Comparator& comparator,
- const ContainerMatcher& container_matcher) {
- return internal::WhenSortedByMatcher<Comparator, ContainerMatcher>(
- comparator, container_matcher);
-}
-
-// Returns a matcher that matches a container that, when sorted using
-// the < operator, matches container_matcher.
-template <typename ContainerMatcher>
-inline internal::WhenSortedByMatcher<internal::LessComparator, ContainerMatcher>
-WhenSorted(const ContainerMatcher& container_matcher) {
- return
- internal::WhenSortedByMatcher<internal::LessComparator, ContainerMatcher>(
- internal::LessComparator(), container_matcher);
-}
-
-// Matches an STL-style container or a native array that contains the
-// same number of elements as in rhs, where its i-th element and rhs's
-// i-th element (as a pair) satisfy the given pair matcher, for all i.
-// TupleMatcher must be able to be safely cast to Matcher<tuple<const
-// T1&, const T2&> >, where T1 and T2 are the types of elements in the
-// LHS container and the RHS container respectively.
-template <typename TupleMatcher, typename Container>
-inline internal::PointwiseMatcher<TupleMatcher,
- GTEST_REMOVE_CONST_(Container)>
-Pointwise(const TupleMatcher& tuple_matcher, const Container& rhs) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes Container to be a const type sometimes (e.g. when
- // rhs is a const int[])..
- typedef GTEST_REMOVE_CONST_(Container) RawContainer;
- return internal::PointwiseMatcher<TupleMatcher, RawContainer>(
- tuple_matcher, rhs);
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-
-// Supports the Pointwise(m, {a, b, c}) syntax.
-template <typename TupleMatcher, typename T>
-inline internal::PointwiseMatcher<TupleMatcher, std::vector<T> > Pointwise(
- const TupleMatcher& tuple_matcher, std::initializer_list<T> rhs) {
- return Pointwise(tuple_matcher, std::vector<T>(rhs));
-}
-
-#endif // GTEST_HAS_STD_INITIALIZER_LIST_
-
-// UnorderedPointwise(pair_matcher, rhs) matches an STL-style
-// container or a native array that contains the same number of
-// elements as in rhs, where in some permutation of the container, its
-// i-th element and rhs's i-th element (as a pair) satisfy the given
-// pair matcher, for all i. Tuple2Matcher must be able to be safely
-// cast to Matcher<tuple<const T1&, const T2&> >, where T1 and T2 are
-// the types of elements in the LHS container and the RHS container
-// respectively.
-//
-// This is like Pointwise(pair_matcher, rhs), except that the element
-// order doesn't matter.
-template <typename Tuple2Matcher, typename RhsContainer>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename internal::BoundSecondMatcher<
- Tuple2Matcher, typename internal::StlContainerView<GTEST_REMOVE_CONST_(
- RhsContainer)>::type::value_type> >
-UnorderedPointwise(const Tuple2Matcher& tuple2_matcher,
- const RhsContainer& rhs_container) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes RhsContainer to be a const type sometimes (e.g. when
- // rhs_container is a const int[]).
- typedef GTEST_REMOVE_CONST_(RhsContainer) RawRhsContainer;
-
- // RhsView allows the same code to handle RhsContainer being a
- // STL-style container and it being a native C-style array.
- typedef typename internal::StlContainerView<RawRhsContainer> RhsView;
- typedef typename RhsView::type RhsStlContainer;
- typedef typename RhsStlContainer::value_type Second;
- const RhsStlContainer& rhs_stl_container =
- RhsView::ConstReference(rhs_container);
-
- // Create a matcher for each element in rhs_container.
- ::std::vector<internal::BoundSecondMatcher<Tuple2Matcher, Second> > matchers;
- for (typename RhsStlContainer::const_iterator it = rhs_stl_container.begin();
- it != rhs_stl_container.end(); ++it) {
- matchers.push_back(
- internal::MatcherBindSecond(tuple2_matcher, *it));
- }
-
- // Delegate the work to UnorderedElementsAreArray().
- return UnorderedElementsAreArray(matchers);
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-
-// Supports the UnorderedPointwise(m, {a, b, c}) syntax.
-template <typename Tuple2Matcher, typename T>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename internal::BoundSecondMatcher<Tuple2Matcher, T> >
-UnorderedPointwise(const Tuple2Matcher& tuple2_matcher,
- std::initializer_list<T> rhs) {
- return UnorderedPointwise(tuple2_matcher, std::vector<T>(rhs));
-}
-
-#endif // GTEST_HAS_STD_INITIALIZER_LIST_
-
-// Matches an STL-style container or a native array that contains at
-// least one element matching the given value or matcher.
-//
-// Examples:
-// ::std::set<int> page_ids;
-// page_ids.insert(3);
-// page_ids.insert(1);
-// EXPECT_THAT(page_ids, Contains(1));
-// EXPECT_THAT(page_ids, Contains(Gt(2)));
-// EXPECT_THAT(page_ids, Not(Contains(4)));
-//
-// ::std::map<int, size_t> page_lengths;
-// page_lengths[1] = 100;
-// EXPECT_THAT(page_lengths,
-// Contains(::std::pair<const int, size_t>(1, 100)));
-//
-// const char* user_ids[] = { "joe", "mike", "tom" };
-// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom"))));
-template <typename M>
-inline internal::ContainsMatcher<M> Contains(M matcher) {
- return internal::ContainsMatcher<M>(matcher);
-}
-
-// IsSupersetOf(iterator_first, iterator_last)
-// IsSupersetOf(pointer, count)
-// IsSupersetOf(array)
-// IsSupersetOf(container)
-// IsSupersetOf({e1, e2, ..., en})
-//
-// IsSupersetOf() verifies that a surjective partial mapping onto a collection
-// of matchers exists. In other words, a container matches
-// IsSupersetOf({e1, ..., en}) if and only if there is a permutation
-// {y1, ..., yn} of some of the container's elements where y1 matches e1,
-// ..., and yn matches en. Obviously, the size of the container must be >= n
-// in order to have a match. Examples:
-//
-// - {1, 2, 3} matches IsSupersetOf({Ge(3), Ne(0)}), as 3 matches Ge(3) and
-// 1 matches Ne(0).
-// - {1, 2} doesn't match IsSupersetOf({Eq(1), Lt(2)}), even though 1 matches
-// both Eq(1) and Lt(2). The reason is that different matchers must be used
-// for elements in different slots of the container.
-// - {1, 1, 2} matches IsSupersetOf({Eq(1), Lt(2)}), as (the first) 1 matches
-// Eq(1) and (the second) 1 matches Lt(2).
-// - {1, 2, 3} matches IsSupersetOf(Gt(1), Gt(1)), as 2 matches (the first)
-// Gt(1) and 3 matches (the second) Gt(1).
-//
-// The matchers can be specified as an array, a pointer and count, a container,
-// an initializer list, or an STL iterator range. In each of these cases, the
-// underlying matchers can be either values or matchers.
-
-template <typename Iter>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename ::std::iterator_traits<Iter>::value_type>
-IsSupersetOf(Iter first, Iter last) {
- typedef typename ::std::iterator_traits<Iter>::value_type T;
- return internal::UnorderedElementsAreArrayMatcher<T>(
- internal::UnorderedMatcherRequire::Superset, first, last);
-}
-
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
- const T* pointer, size_t count) {
- return IsSupersetOf(pointer, pointer + count);
-}
-
-template <typename T, size_t N>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
- const T (&array)[N]) {
- return IsSupersetOf(array, N);
-}
-
-template <typename Container>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename Container::value_type>
-IsSupersetOf(const Container& container) {
- return IsSupersetOf(container.begin(), container.end());
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
- ::std::initializer_list<T> xs) {
- return IsSupersetOf(xs.begin(), xs.end());
-}
-#endif
-
-// IsSubsetOf(iterator_first, iterator_last)
-// IsSubsetOf(pointer, count)
-// IsSubsetOf(array)
-// IsSubsetOf(container)
-// IsSubsetOf({e1, e2, ..., en})
-//
-// IsSubsetOf() verifies that an injective mapping onto a collection of matchers
-// exists. In other words, a container matches IsSubsetOf({e1, ..., en}) if and
-// only if there is a subset of matchers {m1, ..., mk} which would match the
-// container using UnorderedElementsAre. Obviously, the size of the container
-// must be <= n in order to have a match. Examples:
-//
-// - {1} matches IsSubsetOf({Gt(0), Lt(0)}), as 1 matches Gt(0).
-// - {1, -1} matches IsSubsetOf({Lt(0), Gt(0)}), as 1 matches Gt(0) and -1
-// matches Lt(0).
-// - {1, 2} doesn't matches IsSubsetOf({Gt(0), Lt(0)}), even though 1 and 2 both
-// match Gt(0). The reason is that different matchers must be used for
-// elements in different slots of the container.
-//
-// The matchers can be specified as an array, a pointer and count, a container,
-// an initializer list, or an STL iterator range. In each of these cases, the
-// underlying matchers can be either values or matchers.
-
-template <typename Iter>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename ::std::iterator_traits<Iter>::value_type>
-IsSubsetOf(Iter first, Iter last) {
- typedef typename ::std::iterator_traits<Iter>::value_type T;
- return internal::UnorderedElementsAreArrayMatcher<T>(
- internal::UnorderedMatcherRequire::Subset, first, last);
-}
-
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
- const T* pointer, size_t count) {
- return IsSubsetOf(pointer, pointer + count);
-}
-
-template <typename T, size_t N>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
- const T (&array)[N]) {
- return IsSubsetOf(array, N);
-}
-
-template <typename Container>
-inline internal::UnorderedElementsAreArrayMatcher<
- typename Container::value_type>
-IsSubsetOf(const Container& container) {
- return IsSubsetOf(container.begin(), container.end());
-}
-
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-template <typename T>
-inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
- ::std::initializer_list<T> xs) {
- return IsSubsetOf(xs.begin(), xs.end());
-}
-#endif
-
-// Matches an STL-style container or a native array that contains only
-// elements matching the given value or matcher.
-//
-// Each(m) is semantically equivalent to Not(Contains(Not(m))). Only
-// the messages are different.
-//
-// Examples:
-// ::std::set<int> page_ids;
-// // Each(m) matches an empty container, regardless of what m is.
-// EXPECT_THAT(page_ids, Each(Eq(1)));
-// EXPECT_THAT(page_ids, Each(Eq(77)));
-//
-// page_ids.insert(3);
-// EXPECT_THAT(page_ids, Each(Gt(0)));
-// EXPECT_THAT(page_ids, Not(Each(Gt(4))));
-// page_ids.insert(1);
-// EXPECT_THAT(page_ids, Not(Each(Lt(2))));
-//
-// ::std::map<int, size_t> page_lengths;
-// page_lengths[1] = 100;
-// page_lengths[2] = 200;
-// page_lengths[3] = 300;
-// EXPECT_THAT(page_lengths, Not(Each(Pair(1, 100))));
-// EXPECT_THAT(page_lengths, Each(Key(Le(3))));
-//
-// const char* user_ids[] = { "joe", "mike", "tom" };
-// EXPECT_THAT(user_ids, Not(Each(Eq(::std::string("tom")))));
-template <typename M>
-inline internal::EachMatcher<M> Each(M matcher) {
- return internal::EachMatcher<M>(matcher);
-}
-
-// Key(inner_matcher) matches an std::pair whose 'first' field matches
-// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an
-// std::map that contains at least one element whose key is >= 5.
-template <typename M>
-inline internal::KeyMatcher<M> Key(M inner_matcher) {
- return internal::KeyMatcher<M>(inner_matcher);
-}
-
-// Pair(first_matcher, second_matcher) matches a std::pair whose 'first' field
-// matches first_matcher and whose 'second' field matches second_matcher. For
-// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), "foo"))) can be used
-// to match a std::map<int, string> that contains exactly one element whose key
-// is >= 5 and whose value equals "foo".
-template <typename FirstMatcher, typename SecondMatcher>
-inline internal::PairMatcher<FirstMatcher, SecondMatcher>
-Pair(FirstMatcher first_matcher, SecondMatcher second_matcher) {
- return internal::PairMatcher<FirstMatcher, SecondMatcher>(
- first_matcher, second_matcher);
-}
-
-// Returns a predicate that is satisfied by anything that matches the
-// given matcher.
-template <typename M>
-inline internal::MatcherAsPredicate<M> Matches(M matcher) {
- return internal::MatcherAsPredicate<M>(matcher);
-}
-
-// Returns true iff the value matches the matcher.
-template <typename T, typename M>
-inline bool Value(const T& value, M matcher) {
- return testing::Matches(matcher)(value);
-}
-
-// Matches the value against the given matcher and explains the match
-// result to listener.
-template <typename T, typename M>
-inline bool ExplainMatchResult(
- M matcher, const T& value, MatchResultListener* listener) {
- return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener);
-}
-
-// Returns a string representation of the given matcher. Useful for description
-// strings of matchers defined using MATCHER_P* macros that accept matchers as
-// their arguments. For example:
-//
-// MATCHER_P(XAndYThat, matcher,
-// "X that " + DescribeMatcher<int>(matcher, negation) +
-// " and Y that " + DescribeMatcher<double>(matcher, negation)) {
-// return ExplainMatchResult(matcher, arg.x(), result_listener) &&
-// ExplainMatchResult(matcher, arg.y(), result_listener);
-// }
-template <typename T, typename M>
-std::string DescribeMatcher(const M& matcher, bool negation = false) {
- ::std::stringstream ss;
- Matcher<T> monomorphic_matcher = SafeMatcherCast<T>(matcher);
- if (negation) {
- monomorphic_matcher.DescribeNegationTo(&ss);
- } else {
- monomorphic_matcher.DescribeTo(&ss);
- }
- return ss.str();
-}
-
-#if GTEST_LANG_CXX11
-// Define variadic matcher versions. They are overloaded in
-// gmock-generated-matchers.h for the cases supported by pre C++11 compilers.
-template <typename... Args>
-internal::AllOfMatcher<typename std::decay<const Args&>::type...> AllOf(
- const Args&... matchers) {
- return internal::AllOfMatcher<typename std::decay<const Args&>::type...>(
- matchers...);
-}
-
-template <typename... Args>
-internal::AnyOfMatcher<typename std::decay<const Args&>::type...> AnyOf(
- const Args&... matchers) {
- return internal::AnyOfMatcher<typename std::decay<const Args&>::type...>(
- matchers...);
-}
-
-template <typename... Args>
-internal::ElementsAreMatcher<tuple<typename std::decay<const Args&>::type...>>
-ElementsAre(const Args&... matchers) {
- return internal::ElementsAreMatcher<
- tuple<typename std::decay<const Args&>::type...>>(
- make_tuple(matchers...));
-}
-
-template <typename... Args>
-internal::UnorderedElementsAreMatcher<
- tuple<typename std::decay<const Args&>::type...>>
-UnorderedElementsAre(const Args&... matchers) {
- return internal::UnorderedElementsAreMatcher<
- tuple<typename std::decay<const Args&>::type...>>(
- make_tuple(matchers...));
-}
-
-#endif // GTEST_LANG_CXX11
-
-// AllArgs(m) is a synonym of m. This is useful in
-//
-// EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq()));
-//
-// which is easier to read than
-//
-// EXPECT_CALL(foo, Bar(_, _)).With(Eq());
-template <typename InnerMatcher>
-inline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; }
-
-// Returns a matcher that matches the value of an optional<> type variable.
-// The matcher implementation only uses '!arg' and requires that the optional<>
-// type has a 'value_type' member type and that '*arg' is of type 'value_type'
-// and is printable using 'PrintToString'. It is compatible with
-// std::optional/std::experimental::optional.
-// Note that to compare an optional type variable against nullopt you should
-// use Eq(nullopt) and not Optional(Eq(nullopt)). The latter implies that the
-// optional value contains an optional itself.
-template <typename ValueMatcher>
-inline internal::OptionalMatcher<ValueMatcher> Optional(
- const ValueMatcher& value_matcher) {
- return internal::OptionalMatcher<ValueMatcher>(value_matcher);
-}
-
-// Returns a matcher that matches the value of a absl::any type variable.
-template <typename T>
-PolymorphicMatcher<internal::any_cast_matcher::AnyCastMatcher<T> > AnyWith(
- const Matcher<const T&>& matcher) {
- return MakePolymorphicMatcher(
- internal::any_cast_matcher::AnyCastMatcher<T>(matcher));
-}
-
-// Returns a matcher that matches the value of a variant<> type variable.
-// The matcher implementation uses ADL to find the holds_alternative and get
-// functions.
-// It is compatible with std::variant.
-template <typename T>
-PolymorphicMatcher<internal::variant_matcher::VariantMatcher<T> > VariantWith(
- const Matcher<const T&>& matcher) {
- return MakePolymorphicMatcher(
- internal::variant_matcher::VariantMatcher<T>(matcher));
-}
-
-// These macros allow using matchers to check values in Google Test
-// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher)
-// succeed iff the value matches the matcher. If the assertion fails,
-// the value and the description of the matcher will be printed.
-#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\
- ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
-#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\
- ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
-
-} // namespace testing
-
-GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251 5046
-
-// Include any custom callback matchers added by the local installation.
-// We must include this header at the end to make sure it can use the
-// declarations from this file.
-#include "gmock/internal/custom/gmock-matchers.h"
-
-#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_