summaryrefslogtreecommitdiffhomepage
path: root/googlemock/include/gmock/gmock-spec-builders.h
diff options
context:
space:
mode:
Diffstat (limited to 'googlemock/include/gmock/gmock-spec-builders.h')
-rw-r--r--googlemock/include/gmock/gmock-spec-builders.h1918
1 files changed, 0 insertions, 1918 deletions
diff --git a/googlemock/include/gmock/gmock-spec-builders.h b/googlemock/include/gmock/gmock-spec-builders.h
deleted file mode 100644
index 436e2d8..0000000
--- a/googlemock/include/gmock/gmock-spec-builders.h
+++ /dev/null
@@ -1,1918 +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 the ON_CALL() and EXPECT_CALL() macros.
-//
-// A user can use the ON_CALL() macro to specify the default action of
-// a mock method. The syntax is:
-//
-// ON_CALL(mock_object, Method(argument-matchers))
-// .With(multi-argument-matcher)
-// .WillByDefault(action);
-//
-// where the .With() clause is optional.
-//
-// A user can use the EXPECT_CALL() macro to specify an expectation on
-// a mock method. The syntax is:
-//
-// EXPECT_CALL(mock_object, Method(argument-matchers))
-// .With(multi-argument-matchers)
-// .Times(cardinality)
-// .InSequence(sequences)
-// .After(expectations)
-// .WillOnce(action)
-// .WillRepeatedly(action)
-// .RetiresOnSaturation();
-//
-// where all clauses are optional, and .InSequence()/.After()/
-// .WillOnce() can appear any number of times.
-
-// GOOGLETEST_CM0002 DO NOT DELETE
-
-#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_SPEC_BUILDERS_H_
-#define GMOCK_INCLUDE_GMOCK_GMOCK_SPEC_BUILDERS_H_
-
-#include <map>
-#include <set>
-#include <sstream>
-#include <string>
-#include <vector>
-#include "gmock/gmock-actions.h"
-#include "gmock/gmock-cardinalities.h"
-#include "gmock/gmock-matchers.h"
-#include "gmock/internal/gmock-internal-utils.h"
-#include "gmock/internal/gmock-port.h"
-#include "gtest/gtest.h"
-
-#if GTEST_HAS_EXCEPTIONS
-# include <stdexcept> // NOLINT
-#endif
-
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
-namespace testing {
-
-// An abstract handle of an expectation.
-class Expectation;
-
-// A set of expectation handles.
-class ExpectationSet;
-
-// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
-// and MUST NOT BE USED IN USER CODE!!!
-namespace internal {
-
-// Implements a mock function.
-template <typename F> class FunctionMocker;
-
-// Base class for expectations.
-class ExpectationBase;
-
-// Implements an expectation.
-template <typename F> class TypedExpectation;
-
-// Helper class for testing the Expectation class template.
-class ExpectationTester;
-
-// Base class for function mockers.
-template <typename F> class FunctionMockerBase;
-
-// Protects the mock object registry (in class Mock), all function
-// mockers, and all expectations.
-//
-// The reason we don't use more fine-grained protection is: when a
-// mock function Foo() is called, it needs to consult its expectations
-// to see which one should be picked. If another thread is allowed to
-// call a mock function (either Foo() or a different one) at the same
-// time, it could affect the "retired" attributes of Foo()'s
-// expectations when InSequence() is used, and thus affect which
-// expectation gets picked. Therefore, we sequence all mock function
-// calls to ensure the integrity of the mock objects' states.
-GTEST_API_ GTEST_DECLARE_STATIC_MUTEX_(g_gmock_mutex);
-
-// Untyped base class for ActionResultHolder<R>.
-class UntypedActionResultHolderBase;
-
-// Abstract base class of FunctionMockerBase. This is the
-// type-agnostic part of the function mocker interface. Its pure
-// virtual methods are implemented by FunctionMockerBase.
-class GTEST_API_ UntypedFunctionMockerBase {
- public:
- UntypedFunctionMockerBase();
- virtual ~UntypedFunctionMockerBase();
-
- // Verifies that all expectations on this mock function have been
- // satisfied. Reports one or more Google Test non-fatal failures
- // and returns false if not.
- bool VerifyAndClearExpectationsLocked()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
-
- // Clears the ON_CALL()s set on this mock function.
- virtual void ClearDefaultActionsLocked()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) = 0;
-
- // In all of the following Untyped* functions, it's the caller's
- // responsibility to guarantee the correctness of the arguments'
- // types.
-
- // Performs the default action with the given arguments and returns
- // the action's result. The call description string will be used in
- // the error message to describe the call in the case the default
- // action fails.
- // L = *
- virtual UntypedActionResultHolderBase* UntypedPerformDefaultAction(
- void* untyped_args, const std::string& call_description) const = 0;
-
- // Performs the given action with the given arguments and returns
- // the action's result.
- // L = *
- virtual UntypedActionResultHolderBase* UntypedPerformAction(
- const void* untyped_action, void* untyped_args) const = 0;
-
- // Writes a message that the call is uninteresting (i.e. neither
- // explicitly expected nor explicitly unexpected) to the given
- // ostream.
- virtual void UntypedDescribeUninterestingCall(
- const void* untyped_args,
- ::std::ostream* os) const
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) = 0;
-
- // Returns the expectation that matches the given function arguments
- // (or NULL is there's no match); when a match is found,
- // untyped_action is set to point to the action that should be
- // performed (or NULL if the action is "do default"), and
- // is_excessive is modified to indicate whether the call exceeds the
- // expected number.
- virtual const ExpectationBase* UntypedFindMatchingExpectation(
- const void* untyped_args,
- const void** untyped_action, bool* is_excessive,
- ::std::ostream* what, ::std::ostream* why)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) = 0;
-
- // Prints the given function arguments to the ostream.
- virtual void UntypedPrintArgs(const void* untyped_args,
- ::std::ostream* os) const = 0;
-
- // Sets the mock object this mock method belongs to, and registers
- // this information in the global mock registry. Will be called
- // whenever an EXPECT_CALL() or ON_CALL() is executed on this mock
- // method.
- // FIXME: rename to SetAndRegisterOwner().
- void RegisterOwner(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
-
- // Sets the mock object this mock method belongs to, and sets the
- // name of the mock function. Will be called upon each invocation
- // of this mock function.
- void SetOwnerAndName(const void* mock_obj, const char* name)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
-
- // Returns the mock object this mock method belongs to. Must be
- // called after RegisterOwner() or SetOwnerAndName() has been
- // called.
- const void* MockObject() const
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
-
- // Returns the name of this mock method. Must be called after
- // SetOwnerAndName() has been called.
- const char* Name() const
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
-
- // Returns the result of invoking this mock function with the given
- // arguments. This function can be safely called from multiple
- // threads concurrently. The caller is responsible for deleting the
- // result.
- UntypedActionResultHolderBase* UntypedInvokeWith(void* untyped_args)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
-
- protected:
- typedef std::vector<const void*> UntypedOnCallSpecs;
-
- typedef std::vector<internal::linked_ptr<ExpectationBase> >
- UntypedExpectations;
-
- // Returns an Expectation object that references and co-owns exp,
- // which must be an expectation on this mock function.
- Expectation GetHandleOf(ExpectationBase* exp);
-
- // Address of the mock object this mock method belongs to. Only
- // valid after this mock method has been called or
- // ON_CALL/EXPECT_CALL has been invoked on it.
- const void* mock_obj_; // Protected by g_gmock_mutex.
-
- // Name of the function being mocked. Only valid after this mock
- // method has been called.
- const char* name_; // Protected by g_gmock_mutex.
-
- // All default action specs for this function mocker.
- UntypedOnCallSpecs untyped_on_call_specs_;
-
- // All expectations for this function mocker.
- //
- // It's undefined behavior to interleave expectations (EXPECT_CALLs
- // or ON_CALLs) and mock function calls. Also, the order of
- // expectations is important. Therefore it's a logic race condition
- // to read/write untyped_expectations_ concurrently. In order for
- // tools like tsan to catch concurrent read/write accesses to
- // untyped_expectations, we deliberately leave accesses to it
- // unprotected.
- UntypedExpectations untyped_expectations_;
-}; // class UntypedFunctionMockerBase
-
-// Untyped base class for OnCallSpec<F>.
-class UntypedOnCallSpecBase {
- public:
- // The arguments are the location of the ON_CALL() statement.
- UntypedOnCallSpecBase(const char* a_file, int a_line)
- : file_(a_file), line_(a_line), last_clause_(kNone) {}
-
- // Where in the source file was the default action spec defined?
- const char* file() const { return file_; }
- int line() const { return line_; }
-
- protected:
- // Gives each clause in the ON_CALL() statement a name.
- enum Clause {
- // Do not change the order of the enum members! The run-time
- // syntax checking relies on it.
- kNone,
- kWith,
- kWillByDefault
- };
-
- // Asserts that the ON_CALL() statement has a certain property.
- void AssertSpecProperty(bool property,
- const std::string& failure_message) const {
- Assert(property, file_, line_, failure_message);
- }
-
- // Expects that the ON_CALL() statement has a certain property.
- void ExpectSpecProperty(bool property,
- const std::string& failure_message) const {
- Expect(property, file_, line_, failure_message);
- }
-
- const char* file_;
- int line_;
-
- // The last clause in the ON_CALL() statement as seen so far.
- // Initially kNone and changes as the statement is parsed.
- Clause last_clause_;
-}; // class UntypedOnCallSpecBase
-
-// This template class implements an ON_CALL spec.
-template <typename F>
-class OnCallSpec : public UntypedOnCallSpecBase {
- public:
- typedef typename Function<F>::ArgumentTuple ArgumentTuple;
- typedef typename Function<F>::ArgumentMatcherTuple ArgumentMatcherTuple;
-
- // Constructs an OnCallSpec object from the information inside
- // the parenthesis of an ON_CALL() statement.
- OnCallSpec(const char* a_file, int a_line,
- const ArgumentMatcherTuple& matchers)
- : UntypedOnCallSpecBase(a_file, a_line),
- matchers_(matchers),
- // By default, extra_matcher_ should match anything. However,
- // we cannot initialize it with _ as that triggers a compiler
- // bug in Symbian's C++ compiler (cannot decide between two
- // overloaded constructors of Matcher<const ArgumentTuple&>).
- extra_matcher_(A<const ArgumentTuple&>()) {
- }
-
- // Implements the .With() clause.
- OnCallSpec& With(const Matcher<const ArgumentTuple&>& m) {
- // Makes sure this is called at most once.
- ExpectSpecProperty(last_clause_ < kWith,
- ".With() cannot appear "
- "more than once in an ON_CALL().");
- last_clause_ = kWith;
-
- extra_matcher_ = m;
- return *this;
- }
-
- // Implements the .WillByDefault() clause.
- OnCallSpec& WillByDefault(const Action<F>& action) {
- ExpectSpecProperty(last_clause_ < kWillByDefault,
- ".WillByDefault() must appear "
- "exactly once in an ON_CALL().");
- last_clause_ = kWillByDefault;
-
- ExpectSpecProperty(!action.IsDoDefault(),
- "DoDefault() cannot be used in ON_CALL().");
- action_ = action;
- return *this;
- }
-
- // Returns true iff the given arguments match the matchers.
- bool Matches(const ArgumentTuple& args) const {
- return TupleMatches(matchers_, args) && extra_matcher_.Matches(args);
- }
-
- // Returns the action specified by the user.
- const Action<F>& GetAction() const {
- AssertSpecProperty(last_clause_ == kWillByDefault,
- ".WillByDefault() must appear exactly "
- "once in an ON_CALL().");
- return action_;
- }
-
- private:
- // The information in statement
- //
- // ON_CALL(mock_object, Method(matchers))
- // .With(multi-argument-matcher)
- // .WillByDefault(action);
- //
- // is recorded in the data members like this:
- //
- // source file that contains the statement => file_
- // line number of the statement => line_
- // matchers => matchers_
- // multi-argument-matcher => extra_matcher_
- // action => action_
- ArgumentMatcherTuple matchers_;
- Matcher<const ArgumentTuple&> extra_matcher_;
- Action<F> action_;
-}; // class OnCallSpec
-
-// Possible reactions on uninteresting calls.
-enum CallReaction {
- kAllow,
- kWarn,
- kFail,
-};
-
-} // namespace internal
-
-// Utilities for manipulating mock objects.
-class GTEST_API_ Mock {
- public:
- // The following public methods can be called concurrently.
-
- // Tells Google Mock to ignore mock_obj when checking for leaked
- // mock objects.
- static void AllowLeak(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Verifies and clears all expectations on the given mock object.
- // If the expectations aren't satisfied, generates one or more
- // Google Test non-fatal failures and returns false.
- static bool VerifyAndClearExpectations(void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Verifies all expectations on the given mock object and clears its
- // default actions and expectations. Returns true iff the
- // verification was successful.
- static bool VerifyAndClear(void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- private:
- friend class internal::UntypedFunctionMockerBase;
-
- // Needed for a function mocker to register itself (so that we know
- // how to clear a mock object).
- template <typename F>
- friend class internal::FunctionMockerBase;
-
- template <typename M>
- friend class NiceMock;
-
- template <typename M>
- friend class NaggyMock;
-
- template <typename M>
- friend class StrictMock;
-
- // Tells Google Mock to allow uninteresting calls on the given mock
- // object.
- static void AllowUninterestingCalls(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Tells Google Mock to warn the user about uninteresting calls on
- // the given mock object.
- static void WarnUninterestingCalls(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Tells Google Mock to fail uninteresting calls on the given mock
- // object.
- static void FailUninterestingCalls(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Tells Google Mock the given mock object is being destroyed and
- // its entry in the call-reaction table should be removed.
- static void UnregisterCallReaction(const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Returns the reaction Google Mock will have on uninteresting calls
- // made on the given mock object.
- static internal::CallReaction GetReactionOnUninterestingCalls(
- const void* mock_obj)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Verifies that all expectations on the given mock object have been
- // satisfied. Reports one or more Google Test non-fatal failures
- // and returns false if not.
- static bool VerifyAndClearExpectationsLocked(void* mock_obj)
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex);
-
- // Clears all ON_CALL()s set on the given mock object.
- static void ClearDefaultActionsLocked(void* mock_obj)
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex);
-
- // Registers a mock object and a mock method it owns.
- static void Register(
- const void* mock_obj,
- internal::UntypedFunctionMockerBase* mocker)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Tells Google Mock where in the source code mock_obj is used in an
- // ON_CALL or EXPECT_CALL. In case mock_obj is leaked, this
- // information helps the user identify which object it is.
- static void RegisterUseByOnCallOrExpectCall(
- const void* mock_obj, const char* file, int line)
- GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
-
- // Unregisters a mock method; removes the owning mock object from
- // the registry when the last mock method associated with it has
- // been unregistered. This is called only in the destructor of
- // FunctionMockerBase.
- static void UnregisterLocked(internal::UntypedFunctionMockerBase* mocker)
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex);
-}; // class Mock
-
-// An abstract handle of an expectation. Useful in the .After()
-// clause of EXPECT_CALL() for setting the (partial) order of
-// expectations. The syntax:
-//
-// Expectation e1 = EXPECT_CALL(...)...;
-// EXPECT_CALL(...).After(e1)...;
-//
-// sets two expectations where the latter can only be matched after
-// the former has been satisfied.
-//
-// Notes:
-// - This class is copyable and has value semantics.
-// - Constness is shallow: a const Expectation object itself cannot
-// be modified, but the mutable methods of the ExpectationBase
-// object it references can be called via expectation_base().
-// - The constructors and destructor are defined out-of-line because
-// the Symbian WINSCW compiler wants to otherwise instantiate them
-// when it sees this class definition, at which point it doesn't have
-// ExpectationBase available yet, leading to incorrect destruction
-// in the linked_ptr (or compilation errors if using a checking
-// linked_ptr).
-class GTEST_API_ Expectation {
- public:
- // Constructs a null object that doesn't reference any expectation.
- Expectation();
-
- ~Expectation();
-
- // This single-argument ctor must not be explicit, in order to support the
- // Expectation e = EXPECT_CALL(...);
- // syntax.
- //
- // A TypedExpectation object stores its pre-requisites as
- // Expectation objects, and needs to call the non-const Retire()
- // method on the ExpectationBase objects they reference. Therefore
- // Expectation must receive a *non-const* reference to the
- // ExpectationBase object.
- Expectation(internal::ExpectationBase& exp); // NOLINT
-
- // The compiler-generated copy ctor and operator= work exactly as
- // intended, so we don't need to define our own.
-
- // Returns true iff rhs references the same expectation as this object does.
- bool operator==(const Expectation& rhs) const {
- return expectation_base_ == rhs.expectation_base_;
- }
-
- bool operator!=(const Expectation& rhs) const { return !(*this == rhs); }
-
- private:
- friend class ExpectationSet;
- friend class Sequence;
- friend class ::testing::internal::ExpectationBase;
- friend class ::testing::internal::UntypedFunctionMockerBase;
-
- template <typename F>
- friend class ::testing::internal::FunctionMockerBase;
-
- template <typename F>
- friend class ::testing::internal::TypedExpectation;
-
- // This comparator is needed for putting Expectation objects into a set.
- class Less {
- public:
- bool operator()(const Expectation& lhs, const Expectation& rhs) const {
- return lhs.expectation_base_.get() < rhs.expectation_base_.get();
- }
- };
-
- typedef ::std::set<Expectation, Less> Set;
-
- Expectation(
- const internal::linked_ptr<internal::ExpectationBase>& expectation_base);
-
- // Returns the expectation this object references.
- const internal::linked_ptr<internal::ExpectationBase>&
- expectation_base() const {
- return expectation_base_;
- }
-
- // A linked_ptr that co-owns the expectation this handle references.
- internal::linked_ptr<internal::ExpectationBase> expectation_base_;
-};
-
-// A set of expectation handles. Useful in the .After() clause of
-// EXPECT_CALL() for setting the (partial) order of expectations. The
-// syntax:
-//
-// ExpectationSet es;
-// es += EXPECT_CALL(...)...;
-// es += EXPECT_CALL(...)...;
-// EXPECT_CALL(...).After(es)...;
-//
-// sets three expectations where the last one can only be matched
-// after the first two have both been satisfied.
-//
-// This class is copyable and has value semantics.
-class ExpectationSet {
- public:
- // A bidirectional iterator that can read a const element in the set.
- typedef Expectation::Set::const_iterator const_iterator;
-
- // An object stored in the set. This is an alias of Expectation.
- typedef Expectation::Set::value_type value_type;
-
- // Constructs an empty set.
- ExpectationSet() {}
-
- // This single-argument ctor must not be explicit, in order to support the
- // ExpectationSet es = EXPECT_CALL(...);
- // syntax.
- ExpectationSet(internal::ExpectationBase& exp) { // NOLINT
- *this += Expectation(exp);
- }
-
- // This single-argument ctor implements implicit conversion from
- // Expectation and thus must not be explicit. This allows either an
- // Expectation or an ExpectationSet to be used in .After().
- ExpectationSet(const Expectation& e) { // NOLINT
- *this += e;
- }
-
- // The compiler-generator ctor and operator= works exactly as
- // intended, so we don't need to define our own.
-
- // Returns true iff rhs contains the same set of Expectation objects
- // as this does.
- bool operator==(const ExpectationSet& rhs) const {
- return expectations_ == rhs.expectations_;
- }
-
- bool operator!=(const ExpectationSet& rhs) const { return !(*this == rhs); }
-
- // Implements the syntax
- // expectation_set += EXPECT_CALL(...);
- ExpectationSet& operator+=(const Expectation& e) {
- expectations_.insert(e);
- return *this;
- }
-
- int size() const { return static_cast<int>(expectations_.size()); }
-
- const_iterator begin() const { return expectations_.begin(); }
- const_iterator end() const { return expectations_.end(); }
-
- private:
- Expectation::Set expectations_;
-};
-
-
-// Sequence objects are used by a user to specify the relative order
-// in which the expectations should match. They are copyable (we rely
-// on the compiler-defined copy constructor and assignment operator).
-class GTEST_API_ Sequence {
- public:
- // Constructs an empty sequence.
- Sequence() : last_expectation_(new Expectation) {}
-
- // Adds an expectation to this sequence. The caller must ensure
- // that no other thread is accessing this Sequence object.
- void AddExpectation(const Expectation& expectation) const;
-
- private:
- // The last expectation in this sequence. We use a linked_ptr here
- // because Sequence objects are copyable and we want the copies to
- // be aliases. The linked_ptr allows the copies to co-own and share
- // the same Expectation object.
- internal::linked_ptr<Expectation> last_expectation_;
-}; // class Sequence
-
-// An object of this type causes all EXPECT_CALL() statements
-// encountered in its scope to be put in an anonymous sequence. The
-// work is done in the constructor and destructor. You should only
-// create an InSequence object on the stack.
-//
-// The sole purpose for this class is to support easy definition of
-// sequential expectations, e.g.
-//
-// {
-// InSequence dummy; // The name of the object doesn't matter.
-//
-// // The following expectations must match in the order they appear.
-// EXPECT_CALL(a, Bar())...;
-// EXPECT_CALL(a, Baz())...;
-// ...
-// EXPECT_CALL(b, Xyz())...;
-// }
-//
-// You can create InSequence objects in multiple threads, as long as
-// they are used to affect different mock objects. The idea is that
-// each thread can create and set up its own mocks as if it's the only
-// thread. However, for clarity of your tests we recommend you to set
-// up mocks in the main thread unless you have a good reason not to do
-// so.
-class GTEST_API_ InSequence {
- public:
- InSequence();
- ~InSequence();
- private:
- bool sequence_created_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(InSequence); // NOLINT
-} GTEST_ATTRIBUTE_UNUSED_;
-
-namespace internal {
-
-// Points to the implicit sequence introduced by a living InSequence
-// object (if any) in the current thread or NULL.
-GTEST_API_ extern ThreadLocal<Sequence*> g_gmock_implicit_sequence;
-
-// Base class for implementing expectations.
-//
-// There are two reasons for having a type-agnostic base class for
-// Expectation:
-//
-// 1. We need to store collections of expectations of different
-// types (e.g. all pre-requisites of a particular expectation, all
-// expectations in a sequence). Therefore these expectation objects
-// must share a common base class.
-//
-// 2. We can avoid binary code bloat by moving methods not depending
-// on the template argument of Expectation to the base class.
-//
-// This class is internal and mustn't be used by user code directly.
-class GTEST_API_ ExpectationBase {
- public:
- // source_text is the EXPECT_CALL(...) source that created this Expectation.
- ExpectationBase(const char* file, int line, const std::string& source_text);
-
- virtual ~ExpectationBase();
-
- // Where in the source file was the expectation spec defined?
- const char* file() const { return file_; }
- int line() const { return line_; }
- const char* source_text() const { return source_text_.c_str(); }
- // Returns the cardinality specified in the expectation spec.
- const Cardinality& cardinality() const { return cardinality_; }
-
- // Describes the source file location of this expectation.
- void DescribeLocationTo(::std::ostream* os) const {
- *os << FormatFileLocation(file(), line()) << " ";
- }
-
- // Describes how many times a function call matching this
- // expectation has occurred.
- void DescribeCallCountTo(::std::ostream* os) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
-
- // If this mock method has an extra matcher (i.e. .With(matcher)),
- // describes it to the ostream.
- virtual void MaybeDescribeExtraMatcherTo(::std::ostream* os) = 0;
-
- protected:
- friend class ::testing::Expectation;
- friend class UntypedFunctionMockerBase;
-
- enum Clause {
- // Don't change the order of the enum members!
- kNone,
- kWith,
- kTimes,
- kInSequence,
- kAfter,
- kWillOnce,
- kWillRepeatedly,
- kRetiresOnSaturation
- };
-
- typedef std::vector<const void*> UntypedActions;
-
- // Returns an Expectation object that references and co-owns this
- // expectation.
- virtual Expectation GetHandle() = 0;
-
- // Asserts that the EXPECT_CALL() statement has the given property.
- void AssertSpecProperty(bool property,
- const std::string& failure_message) const {
- Assert(property, file_, line_, failure_message);
- }
-
- // Expects that the EXPECT_CALL() statement has the given property.
- void ExpectSpecProperty(bool property,
- const std::string& failure_message) const {
- Expect(property, file_, line_, failure_message);
- }
-
- // Explicitly specifies the cardinality of this expectation. Used
- // by the subclasses to implement the .Times() clause.
- void SpecifyCardinality(const Cardinality& cardinality);
-
- // Returns true iff the user specified the cardinality explicitly
- // using a .Times().
- bool cardinality_specified() const { return cardinality_specified_; }
-
- // Sets the cardinality of this expectation spec.
- void set_cardinality(const Cardinality& a_cardinality) {
- cardinality_ = a_cardinality;
- }
-
- // The following group of methods should only be called after the
- // EXPECT_CALL() statement, and only when g_gmock_mutex is held by
- // the current thread.
-
- // Retires all pre-requisites of this expectation.
- void RetireAllPreRequisites()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
-
- // Returns true iff this expectation is retired.
- bool is_retired() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return retired_;
- }
-
- // Retires this expectation.
- void Retire()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- retired_ = true;
- }
-
- // Returns true iff this expectation is satisfied.
- bool IsSatisfied() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return cardinality().IsSatisfiedByCallCount(call_count_);
- }
-
- // Returns true iff this expectation is saturated.
- bool IsSaturated() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return cardinality().IsSaturatedByCallCount(call_count_);
- }
-
- // Returns true iff this expectation is over-saturated.
- bool IsOverSaturated() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return cardinality().IsOverSaturatedByCallCount(call_count_);
- }
-
- // Returns true iff all pre-requisites of this expectation are satisfied.
- bool AllPrerequisitesAreSatisfied() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
-
- // Adds unsatisfied pre-requisites of this expectation to 'result'.
- void FindUnsatisfiedPrerequisites(ExpectationSet* result) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
-
- // Returns the number this expectation has been invoked.
- int call_count() const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return call_count_;
- }
-
- // Increments the number this expectation has been invoked.
- void IncrementCallCount()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- call_count_++;
- }
-
- // Checks the action count (i.e. the number of WillOnce() and
- // WillRepeatedly() clauses) against the cardinality if this hasn't
- // been done before. Prints a warning if there are too many or too
- // few actions.
- void CheckActionCountIfNotDone() const
- GTEST_LOCK_EXCLUDED_(mutex_);
-
- friend class ::testing::Sequence;
- friend class ::testing::internal::ExpectationTester;
-
- template <typename Function>
- friend class TypedExpectation;
-
- // Implements the .Times() clause.
- void UntypedTimes(const Cardinality& a_cardinality);
-
- // This group of fields are part of the spec and won't change after
- // an EXPECT_CALL() statement finishes.
- const char* file_; // The file that contains the expectation.
- int line_; // The line number of the expectation.
- const std::string source_text_; // The EXPECT_CALL(...) source text.
- // True iff the cardinality is specified explicitly.
- bool cardinality_specified_;
- Cardinality cardinality_; // The cardinality of the expectation.
- // The immediate pre-requisites (i.e. expectations that must be
- // satisfied before this expectation can be matched) of this
- // expectation. We use linked_ptr in the set because we want an
- // Expectation object to be co-owned by its FunctionMocker and its
- // successors. This allows multiple mock objects to be deleted at
- // different times.
- ExpectationSet immediate_prerequisites_;
-
- // This group of fields are the current state of the expectation,
- // and can change as the mock function is called.
- int call_count_; // How many times this expectation has been invoked.
- bool retired_; // True iff this expectation has retired.
- UntypedActions untyped_actions_;
- bool extra_matcher_specified_;
- bool repeated_action_specified_; // True if a WillRepeatedly() was specified.
- bool retires_on_saturation_;
- Clause last_clause_;
- mutable bool action_count_checked_; // Under mutex_.
- mutable Mutex mutex_; // Protects action_count_checked_.
-
- GTEST_DISALLOW_ASSIGN_(ExpectationBase);
-}; // class ExpectationBase
-
-// Impements an expectation for the given function type.
-template <typename F>
-class TypedExpectation : public ExpectationBase {
- public:
- typedef typename Function<F>::ArgumentTuple ArgumentTuple;
- typedef typename Function<F>::ArgumentMatcherTuple ArgumentMatcherTuple;
- typedef typename Function<F>::Result Result;
-
- TypedExpectation(FunctionMockerBase<F>* owner, const char* a_file, int a_line,
- const std::string& a_source_text,
- const ArgumentMatcherTuple& m)
- : ExpectationBase(a_file, a_line, a_source_text),
- owner_(owner),
- matchers_(m),
- // By default, extra_matcher_ should match anything. However,
- // we cannot initialize it with _ as that triggers a compiler
- // bug in Symbian's C++ compiler (cannot decide between two
- // overloaded constructors of Matcher<const ArgumentTuple&>).
- extra_matcher_(A<const ArgumentTuple&>()),
- repeated_action_(DoDefault()) {}
-
- virtual ~TypedExpectation() {
- // Check the validity of the action count if it hasn't been done
- // yet (for example, if the expectation was never used).
- CheckActionCountIfNotDone();
- for (UntypedActions::const_iterator it = untyped_actions_.begin();
- it != untyped_actions_.end(); ++it) {
- delete static_cast<const Action<F>*>(*it);
- }
- }
-
- // Implements the .With() clause.
- TypedExpectation& With(const Matcher<const ArgumentTuple&>& m) {
- if (last_clause_ == kWith) {
- ExpectSpecProperty(false,
- ".With() cannot appear "
- "more than once in an EXPECT_CALL().");
- } else {
- ExpectSpecProperty(last_clause_ < kWith,
- ".With() must be the first "
- "clause in an EXPECT_CALL().");
- }
- last_clause_ = kWith;
-
- extra_matcher_ = m;
- extra_matcher_specified_ = true;
- return *this;
- }
-
- // Implements the .Times() clause.
- TypedExpectation& Times(const Cardinality& a_cardinality) {
- ExpectationBase::UntypedTimes(a_cardinality);
- return *this;
- }
-
- // Implements the .Times() clause.
- TypedExpectation& Times(int n) {
- return Times(Exactly(n));
- }
-
- // Implements the .InSequence() clause.
- TypedExpectation& InSequence(const Sequence& s) {
- ExpectSpecProperty(last_clause_ <= kInSequence,
- ".InSequence() cannot appear after .After(),"
- " .WillOnce(), .WillRepeatedly(), or "
- ".RetiresOnSaturation().");
- last_clause_ = kInSequence;
-
- s.AddExpectation(GetHandle());
- return *this;
- }
- TypedExpectation& InSequence(const Sequence& s1, const Sequence& s2) {
- return InSequence(s1).InSequence(s2);
- }
- TypedExpectation& InSequence(const Sequence& s1, const Sequence& s2,
- const Sequence& s3) {
- return InSequence(s1, s2).InSequence(s3);
- }
- TypedExpectation& InSequence(const Sequence& s1, const Sequence& s2,
- const Sequence& s3, const Sequence& s4) {
- return InSequence(s1, s2, s3).InSequence(s4);
- }
- TypedExpectation& InSequence(const Sequence& s1, const Sequence& s2,
- const Sequence& s3, const Sequence& s4,
- const Sequence& s5) {
- return InSequence(s1, s2, s3, s4).InSequence(s5);
- }
-
- // Implements that .After() clause.
- TypedExpectation& After(const ExpectationSet& s) {
- ExpectSpecProperty(last_clause_ <= kAfter,
- ".After() cannot appear after .WillOnce(),"
- " .WillRepeatedly(), or "
- ".RetiresOnSaturation().");
- last_clause_ = kAfter;
-
- for (ExpectationSet::const_iterator it = s.begin(); it != s.end(); ++it) {
- immediate_prerequisites_ += *it;
- }
- return *this;
- }
- TypedExpectation& After(const ExpectationSet& s1, const ExpectationSet& s2) {
- return After(s1).After(s2);
- }
- TypedExpectation& After(const ExpectationSet& s1, const ExpectationSet& s2,
- const ExpectationSet& s3) {
- return After(s1, s2).After(s3);
- }
- TypedExpectation& After(const ExpectationSet& s1, const ExpectationSet& s2,
- const ExpectationSet& s3, const ExpectationSet& s4) {
- return After(s1, s2, s3).After(s4);
- }
- TypedExpectation& After(const ExpectationSet& s1, const ExpectationSet& s2,
- const ExpectationSet& s3, const ExpectationSet& s4,
- const ExpectationSet& s5) {
- return After(s1, s2, s3, s4).After(s5);
- }
-
- // Implements the .WillOnce() clause.
- TypedExpectation& WillOnce(const Action<F>& action) {
- ExpectSpecProperty(last_clause_ <= kWillOnce,
- ".WillOnce() cannot appear after "
- ".WillRepeatedly() or .RetiresOnSaturation().");
- last_clause_ = kWillOnce;
-
- untyped_actions_.push_back(new Action<F>(action));
- if (!cardinality_specified()) {
- set_cardinality(Exactly(static_cast<int>(untyped_actions_.size())));
- }
- return *this;
- }
-
- // Implements the .WillRepeatedly() clause.
- TypedExpectation& WillRepeatedly(const Action<F>& action) {
- if (last_clause_ == kWillRepeatedly) {
- ExpectSpecProperty(false,
- ".WillRepeatedly() cannot appear "
- "more than once in an EXPECT_CALL().");
- } else {
- ExpectSpecProperty(last_clause_ < kWillRepeatedly,
- ".WillRepeatedly() cannot appear "
- "after .RetiresOnSaturation().");
- }
- last_clause_ = kWillRepeatedly;
- repeated_action_specified_ = true;
-
- repeated_action_ = action;
- if (!cardinality_specified()) {
- set_cardinality(AtLeast(static_cast<int>(untyped_actions_.size())));
- }
-
- // Now that no more action clauses can be specified, we check
- // whether their count makes sense.
- CheckActionCountIfNotDone();
- return *this;
- }
-
- // Implements the .RetiresOnSaturation() clause.
- TypedExpectation& RetiresOnSaturation() {
- ExpectSpecProperty(last_clause_ < kRetiresOnSaturation,
- ".RetiresOnSaturation() cannot appear "
- "more than once.");
- last_clause_ = kRetiresOnSaturation;
- retires_on_saturation_ = true;
-
- // Now that no more action clauses can be specified, we check
- // whether their count makes sense.
- CheckActionCountIfNotDone();
- return *this;
- }
-
- // Returns the matchers for the arguments as specified inside the
- // EXPECT_CALL() macro.
- const ArgumentMatcherTuple& matchers() const {
- return matchers_;
- }
-
- // Returns the matcher specified by the .With() clause.
- const Matcher<const ArgumentTuple&>& extra_matcher() const {
- return extra_matcher_;
- }
-
- // Returns the action specified by the .WillRepeatedly() clause.
- const Action<F>& repeated_action() const { return repeated_action_; }
-
- // If this mock method has an extra matcher (i.e. .With(matcher)),
- // describes it to the ostream.
- virtual void MaybeDescribeExtraMatcherTo(::std::ostream* os) {
- if (extra_matcher_specified_) {
- *os << " Expected args: ";
- extra_matcher_.DescribeTo(os);
- *os << "\n";
- }
- }
-
- private:
- template <typename Function>
- friend class FunctionMockerBase;
-
- // Returns an Expectation object that references and co-owns this
- // expectation.
- virtual Expectation GetHandle() {
- return owner_->GetHandleOf(this);
- }
-
- // The following methods will be called only after the EXPECT_CALL()
- // statement finishes and when the current thread holds
- // g_gmock_mutex.
-
- // Returns true iff this expectation matches the given arguments.
- bool Matches(const ArgumentTuple& args) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- return TupleMatches(matchers_, args) && extra_matcher_.Matches(args);
- }
-
- // Returns true iff this expectation should handle the given arguments.
- bool ShouldHandleArguments(const ArgumentTuple& args) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
-
- // In case the action count wasn't checked when the expectation
- // was defined (e.g. if this expectation has no WillRepeatedly()
- // or RetiresOnSaturation() clause), we check it when the
- // expectation is used for the first time.
- CheckActionCountIfNotDone();
- return !is_retired() && AllPrerequisitesAreSatisfied() && Matches(args);
- }
-
- // Describes the result of matching the arguments against this
- // expectation to the given ostream.
- void ExplainMatchResultTo(
- const ArgumentTuple& args,
- ::std::ostream* os) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
-
- if (is_retired()) {
- *os << " Expected: the expectation is active\n"
- << " Actual: it is retired\n";
- } else if (!Matches(args)) {
- if (!TupleMatches(matchers_, args)) {
- ExplainMatchFailureTupleTo(matchers_, args, os);
- }
- StringMatchResultListener listener;
- if (!extra_matcher_.MatchAndExplain(args, &listener)) {
- *os << " Expected args: ";
- extra_matcher_.DescribeTo(os);
- *os << "\n Actual: don't match";
-
- internal::PrintIfNotEmpty(listener.str(), os);
- *os << "\n";
- }
- } else if (!AllPrerequisitesAreSatisfied()) {
- *os << " Expected: all pre-requisites are satisfied\n"
- << " Actual: the following immediate pre-requisites "
- << "are not satisfied:\n";
- ExpectationSet unsatisfied_prereqs;
- FindUnsatisfiedPrerequisites(&unsatisfied_prereqs);
- int i = 0;
- for (ExpectationSet::const_iterator it = unsatisfied_prereqs.begin();
- it != unsatisfied_prereqs.end(); ++it) {
- it->expectation_base()->DescribeLocationTo(os);
- *os << "pre-requisite #" << i++ << "\n";
- }
- *os << " (end of pre-requisites)\n";
- } else {
- // This line is here just for completeness' sake. It will never
- // be executed as currently the ExplainMatchResultTo() function
- // is called only when the mock function call does NOT match the
- // expectation.
- *os << "The call matches the expectation.\n";
- }
- }
-
- // Returns the action that should be taken for the current invocation.
- const Action<F>& GetCurrentAction(
- const FunctionMockerBase<F>* mocker,
- const ArgumentTuple& args) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- const int count = call_count();
- Assert(count >= 1, __FILE__, __LINE__,
- "call_count() is <= 0 when GetCurrentAction() is "
- "called - this should never happen.");
-
- const int action_count = static_cast<int>(untyped_actions_.size());
- if (action_count > 0 && !repeated_action_specified_ &&
- count > action_count) {
- // If there is at least one WillOnce() and no WillRepeatedly(),
- // we warn the user when the WillOnce() clauses ran out.
- ::std::stringstream ss;
- DescribeLocationTo(&ss);
- ss << "Actions ran out in " << source_text() << "...\n"
- << "Called " << count << " times, but only "
- << action_count << " WillOnce()"
- << (action_count == 1 ? " is" : "s are") << " specified - ";
- mocker->DescribeDefaultActionTo(args, &ss);
- Log(kWarning, ss.str(), 1);
- }
-
- return count <= action_count ?
- *static_cast<const Action<F>*>(untyped_actions_[count - 1]) :
- repeated_action();
- }
-
- // Given the arguments of a mock function call, if the call will
- // over-saturate this expectation, returns the default action;
- // otherwise, returns the next action in this expectation. Also
- // describes *what* happened to 'what', and explains *why* Google
- // Mock does it to 'why'. This method is not const as it calls
- // IncrementCallCount(). A return value of NULL means the default
- // action.
- const Action<F>* GetActionForArguments(
- const FunctionMockerBase<F>* mocker,
- const ArgumentTuple& args,
- ::std::ostream* what,
- ::std::ostream* why)
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- if (IsSaturated()) {
- // We have an excessive call.
- IncrementCallCount();
- *what << "Mock function called more times than expected - ";
- mocker->DescribeDefaultActionTo(args, what);
- DescribeCallCountTo(why);
-
- // FIXME: allow the user to control whether
- // unexpected calls should fail immediately or continue using a
- // flag --gmock_unexpected_calls_are_fatal.
- return NULL;
- }
-
- IncrementCallCount();
- RetireAllPreRequisites();
-
- if (retires_on_saturation_ && IsSaturated()) {
- Retire();
- }
-
- // Must be done after IncrementCount()!
- *what << "Mock function call matches " << source_text() <<"...\n";
- return &(GetCurrentAction(mocker, args));
- }
-
- // All the fields below won't change once the EXPECT_CALL()
- // statement finishes.
- FunctionMockerBase<F>* const owner_;
- ArgumentMatcherTuple matchers_;
- Matcher<const ArgumentTuple&> extra_matcher_;
- Action<F> repeated_action_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(TypedExpectation);
-}; // class TypedExpectation
-
-// A MockSpec object is used by ON_CALL() or EXPECT_CALL() for
-// specifying the default behavior of, or expectation on, a mock
-// function.
-
-// Note: class MockSpec really belongs to the ::testing namespace.
-// However if we define it in ::testing, MSVC will complain when
-// classes in ::testing::internal declare it as a friend class
-// template. To workaround this compiler bug, we define MockSpec in
-// ::testing::internal and import it into ::testing.
-
-// Logs a message including file and line number information.
-GTEST_API_ void LogWithLocation(testing::internal::LogSeverity severity,
- const char* file, int line,
- const std::string& message);
-
-template <typename F>
-class MockSpec {
- public:
- typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
- typedef typename internal::Function<F>::ArgumentMatcherTuple
- ArgumentMatcherTuple;
-
- // Constructs a MockSpec object, given the function mocker object
- // that the spec is associated with.
- MockSpec(internal::FunctionMockerBase<F>* function_mocker,
- const ArgumentMatcherTuple& matchers)
- : function_mocker_(function_mocker), matchers_(matchers) {}
-
- // Adds a new default action spec to the function mocker and returns
- // the newly created spec.
- internal::OnCallSpec<F>& InternalDefaultActionSetAt(
- const char* file, int line, const char* obj, const char* call) {
- LogWithLocation(internal::kInfo, file, line,
- std::string("ON_CALL(") + obj + ", " + call + ") invoked");
- return function_mocker_->AddNewOnCallSpec(file, line, matchers_);
- }
-
- // Adds a new expectation spec to the function mocker and returns
- // the newly created spec.
- internal::TypedExpectation<F>& InternalExpectedAt(
- const char* file, int line, const char* obj, const char* call) {
- const std::string source_text(std::string("EXPECT_CALL(") + obj + ", " +
- call + ")");
- LogWithLocation(internal::kInfo, file, line, source_text + " invoked");
- return function_mocker_->AddNewExpectation(
- file, line, source_text, matchers_);
- }
-
- // This operator overload is used to swallow the superfluous parameter list
- // introduced by the ON/EXPECT_CALL macros. See the macro comments for more
- // explanation.
- MockSpec<F>& operator()(const internal::WithoutMatchers&, void* const) {
- return *this;
- }
-
- private:
- template <typename Function>
- friend class internal::FunctionMocker;
-
- // The function mocker that owns this spec.
- internal::FunctionMockerBase<F>* const function_mocker_;
- // The argument matchers specified in the spec.
- ArgumentMatcherTuple matchers_;
-
- GTEST_DISALLOW_ASSIGN_(MockSpec);
-}; // class MockSpec
-
-// Wrapper type for generically holding an ordinary value or lvalue reference.
-// If T is not a reference type, it must be copyable or movable.
-// ReferenceOrValueWrapper<T> is movable, and will also be copyable unless
-// T is a move-only value type (which means that it will always be copyable
-// if the current platform does not support move semantics).
-//
-// The primary template defines handling for values, but function header
-// comments describe the contract for the whole template (including
-// specializations).
-template <typename T>
-class ReferenceOrValueWrapper {
- public:
- // Constructs a wrapper from the given value/reference.
- explicit ReferenceOrValueWrapper(T value)
- : value_(::testing::internal::move(value)) {
- }
-
- // Unwraps and returns the underlying value/reference, exactly as
- // originally passed. The behavior of calling this more than once on
- // the same object is unspecified.
- T Unwrap() { return ::testing::internal::move(value_); }
-
- // Provides nondestructive access to the underlying value/reference.
- // Always returns a const reference (more precisely,
- // const RemoveReference<T>&). The behavior of calling this after
- // calling Unwrap on the same object is unspecified.
- const T& Peek() const {
- return value_;
- }
-
- private:
- T value_;
-};
-
-// Specialization for lvalue reference types. See primary template
-// for documentation.
-template <typename T>
-class ReferenceOrValueWrapper<T&> {
- public:
- // Workaround for debatable pass-by-reference lint warning (c-library-team
- // policy precludes NOLINT in this context)
- typedef T& reference;
- explicit ReferenceOrValueWrapper(reference ref)
- : value_ptr_(&ref) {}
- T& Unwrap() { return *value_ptr_; }
- const T& Peek() const { return *value_ptr_; }
-
- private:
- T* value_ptr_;
-};
-
-// MSVC warns about using 'this' in base member initializer list, so
-// we need to temporarily disable the warning. We have to do it for
-// the entire class to suppress the warning, even though it's about
-// the constructor only.
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4355)
-
-// C++ treats the void type specially. For example, you cannot define
-// a void-typed variable or pass a void value to a function.
-// ActionResultHolder<T> holds a value of type T, where T must be a
-// copyable type or void (T doesn't need to be default-constructable).
-// It hides the syntactic difference between void and other types, and
-// is used to unify the code for invoking both void-returning and
-// non-void-returning mock functions.
-
-// Untyped base class for ActionResultHolder<T>.
-class UntypedActionResultHolderBase {
- public:
- virtual ~UntypedActionResultHolderBase() {}
-
- // Prints the held value as an action's result to os.
- virtual void PrintAsActionResult(::std::ostream* os) const = 0;
-};
-
-// This generic definition is used when T is not void.
-template <typename T>
-class ActionResultHolder : public UntypedActionResultHolderBase {
- public:
- // Returns the held value. Must not be called more than once.
- T Unwrap() {
- return result_.Unwrap();
- }
-
- // Prints the held value as an action's result to os.
- virtual void PrintAsActionResult(::std::ostream* os) const {
- *os << "\n Returns: ";
- // T may be a reference type, so we don't use UniversalPrint().
- UniversalPrinter<T>::Print(result_.Peek(), os);
- }
-
- // Performs the given mock function's default action and returns the
- // result in a new-ed ActionResultHolder.
- template <typename F>
- static ActionResultHolder* PerformDefaultAction(
- const FunctionMockerBase<F>* func_mocker,
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args,
- const std::string& call_description) {
- return new ActionResultHolder(Wrapper(func_mocker->PerformDefaultAction(
- internal::move(args), call_description)));
- }
-
- // Performs the given action and returns the result in a new-ed
- // ActionResultHolder.
- template <typename F>
- static ActionResultHolder* PerformAction(
- const Action<F>& action,
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args) {
- return new ActionResultHolder(
- Wrapper(action.Perform(internal::move(args))));
- }
-
- private:
- typedef ReferenceOrValueWrapper<T> Wrapper;
-
- explicit ActionResultHolder(Wrapper result)
- : result_(::testing::internal::move(result)) {
- }
-
- Wrapper result_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(ActionResultHolder);
-};
-
-// Specialization for T = void.
-template <>
-class ActionResultHolder<void> : public UntypedActionResultHolderBase {
- public:
- void Unwrap() { }
-
- virtual void PrintAsActionResult(::std::ostream* /* os */) const {}
-
- // Performs the given mock function's default action and returns ownership
- // of an empty ActionResultHolder*.
- template <typename F>
- static ActionResultHolder* PerformDefaultAction(
- const FunctionMockerBase<F>* func_mocker,
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args,
- const std::string& call_description) {
- func_mocker->PerformDefaultAction(internal::move(args), call_description);
- return new ActionResultHolder;
- }
-
- // Performs the given action and returns ownership of an empty
- // ActionResultHolder*.
- template <typename F>
- static ActionResultHolder* PerformAction(
- const Action<F>& action,
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args) {
- action.Perform(internal::move(args));
- return new ActionResultHolder;
- }
-
- private:
- ActionResultHolder() {}
- GTEST_DISALLOW_COPY_AND_ASSIGN_(ActionResultHolder);
-};
-
-// The base of the function mocker class for the given function type.
-// We put the methods in this class instead of its child to avoid code
-// bloat.
-template <typename F>
-class FunctionMockerBase : public UntypedFunctionMockerBase {
- public:
- typedef typename Function<F>::Result Result;
- typedef typename Function<F>::ArgumentTuple ArgumentTuple;
- typedef typename Function<F>::ArgumentMatcherTuple ArgumentMatcherTuple;
-
- FunctionMockerBase() {}
-
- // The destructor verifies that all expectations on this mock
- // function have been satisfied. If not, it will report Google Test
- // non-fatal failures for the violations.
- virtual ~FunctionMockerBase()
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- MutexLock l(&g_gmock_mutex);
- VerifyAndClearExpectationsLocked();
- Mock::UnregisterLocked(this);
- ClearDefaultActionsLocked();
- }
-
- // Returns the ON_CALL spec that matches this mock function with the
- // given arguments; returns NULL if no matching ON_CALL is found.
- // L = *
- const OnCallSpec<F>* FindOnCallSpec(
- const ArgumentTuple& args) const {
- for (UntypedOnCallSpecs::const_reverse_iterator it
- = untyped_on_call_specs_.rbegin();
- it != untyped_on_call_specs_.rend(); ++it) {
- const OnCallSpec<F>* spec = static_cast<const OnCallSpec<F>*>(*it);
- if (spec->Matches(args))
- return spec;
- }
-
- return NULL;
- }
-
- // Performs the default action of this mock function on the given
- // arguments and returns the result. Asserts (or throws if
- // exceptions are enabled) with a helpful call descrption if there
- // is no valid return value. This method doesn't depend on the
- // mutable state of this object, and thus can be called concurrently
- // without locking.
- // L = *
- Result PerformDefaultAction(
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args,
- const std::string& call_description) const {
- const OnCallSpec<F>* const spec =
- this->FindOnCallSpec(args);
- if (spec != NULL) {
- return spec->GetAction().Perform(internal::move(args));
- }
- const std::string message =
- call_description +
- "\n The mock function has no default action "
- "set, and its return type has no default value set.";
-#if GTEST_HAS_EXCEPTIONS
- if (!DefaultValue<Result>::Exists()) {
- throw std::runtime_error(message);
- }
-#else
- Assert(DefaultValue<Result>::Exists(), "", -1, message);
-#endif
- return DefaultValue<Result>::Get();
- }
-
- // Performs the default action with the given arguments and returns
- // the action's result. The call description string will be used in
- // the error message to describe the call in the case the default
- // action fails. The caller is responsible for deleting the result.
- // L = *
- virtual UntypedActionResultHolderBase* UntypedPerformDefaultAction(
- void* untyped_args, // must point to an ArgumentTuple
- const std::string& call_description) const {
- ArgumentTuple* args = static_cast<ArgumentTuple*>(untyped_args);
- return ResultHolder::PerformDefaultAction(this, internal::move(*args),
- call_description);
- }
-
- // Performs the given action with the given arguments and returns
- // the action's result. The caller is responsible for deleting the
- // result.
- // L = *
- virtual UntypedActionResultHolderBase* UntypedPerformAction(
- const void* untyped_action, void* untyped_args) const {
- // Make a copy of the action before performing it, in case the
- // action deletes the mock object (and thus deletes itself).
- const Action<F> action = *static_cast<const Action<F>*>(untyped_action);
- ArgumentTuple* args = static_cast<ArgumentTuple*>(untyped_args);
- return ResultHolder::PerformAction(action, internal::move(*args));
- }
-
- // Implements UntypedFunctionMockerBase::ClearDefaultActionsLocked():
- // clears the ON_CALL()s set on this mock function.
- virtual void ClearDefaultActionsLocked()
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
-
- // Deleting our default actions may trigger other mock objects to be
- // deleted, for example if an action contains a reference counted smart
- // pointer to that mock object, and that is the last reference. So if we
- // delete our actions within the context of the global mutex we may deadlock
- // when this method is called again. Instead, make a copy of the set of
- // actions to delete, clear our set within the mutex, and then delete the
- // actions outside of the mutex.
- UntypedOnCallSpecs specs_to_delete;
- untyped_on_call_specs_.swap(specs_to_delete);
-
- g_gmock_mutex.Unlock();
- for (UntypedOnCallSpecs::const_iterator it =
- specs_to_delete.begin();
- it != specs_to_delete.end(); ++it) {
- delete static_cast<const OnCallSpec<F>*>(*it);
- }
-
- // Lock the mutex again, since the caller expects it to be locked when we
- // return.
- g_gmock_mutex.Lock();
- }
-
- protected:
- template <typename Function>
- friend class MockSpec;
-
- typedef ActionResultHolder<Result> ResultHolder;
-
- // Returns the result of invoking this mock function with the given
- // arguments. This function can be safely called from multiple
- // threads concurrently.
- Result InvokeWith(
- typename RvalueRef<typename Function<F>::ArgumentTuple>::type args)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- // const_cast is required since in C++98 we still pass ArgumentTuple around
- // by const& instead of rvalue reference.
- void* untyped_args = const_cast<void*>(static_cast<const void*>(&args));
- scoped_ptr<ResultHolder> holder(
- DownCast_<ResultHolder*>(this->UntypedInvokeWith(untyped_args)));
- return holder->Unwrap();
- }
-
- // Adds and returns a default action spec for this mock function.
- OnCallSpec<F>& AddNewOnCallSpec(
- const char* file, int line,
- const ArgumentMatcherTuple& m)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- Mock::RegisterUseByOnCallOrExpectCall(MockObject(), file, line);
- OnCallSpec<F>* const on_call_spec = new OnCallSpec<F>(file, line, m);
- untyped_on_call_specs_.push_back(on_call_spec);
- return *on_call_spec;
- }
-
- // Adds and returns an expectation spec for this mock function.
- TypedExpectation<F>& AddNewExpectation(const char* file, int line,
- const std::string& source_text,
- const ArgumentMatcherTuple& m)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- Mock::RegisterUseByOnCallOrExpectCall(MockObject(), file, line);
- TypedExpectation<F>* const expectation =
- new TypedExpectation<F>(this, file, line, source_text, m);
- const linked_ptr<ExpectationBase> untyped_expectation(expectation);
- // See the definition of untyped_expectations_ for why access to
- // it is unprotected here.
- untyped_expectations_.push_back(untyped_expectation);
-
- // Adds this expectation into the implicit sequence if there is one.
- Sequence* const implicit_sequence = g_gmock_implicit_sequence.get();
- if (implicit_sequence != NULL) {
- implicit_sequence->AddExpectation(Expectation(untyped_expectation));
- }
-
- return *expectation;
- }
-
- private:
- template <typename Func> friend class TypedExpectation;
-
- // Some utilities needed for implementing UntypedInvokeWith().
-
- // Describes what default action will be performed for the given
- // arguments.
- // L = *
- void DescribeDefaultActionTo(const ArgumentTuple& args,
- ::std::ostream* os) const {
- const OnCallSpec<F>* const spec = FindOnCallSpec(args);
-
- if (spec == NULL) {
- *os << (internal::type_equals<Result, void>::value ?
- "returning directly.\n" :
- "returning default value.\n");
- } else {
- *os << "taking default action specified at:\n"
- << FormatFileLocation(spec->file(), spec->line()) << "\n";
- }
- }
-
- // Writes a message that the call is uninteresting (i.e. neither
- // explicitly expected nor explicitly unexpected) to the given
- // ostream.
- virtual void UntypedDescribeUninterestingCall(
- const void* untyped_args,
- ::std::ostream* os) const
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- const ArgumentTuple& args =
- *static_cast<const ArgumentTuple*>(untyped_args);
- *os << "Uninteresting mock function call - ";
- DescribeDefaultActionTo(args, os);
- *os << " Function call: " << Name();
- UniversalPrint(args, os);
- }
-
- // Returns the expectation that matches the given function arguments
- // (or NULL is there's no match); when a match is found,
- // untyped_action is set to point to the action that should be
- // performed (or NULL if the action is "do default"), and
- // is_excessive is modified to indicate whether the call exceeds the
- // expected number.
- //
- // Critical section: We must find the matching expectation and the
- // corresponding action that needs to be taken in an ATOMIC
- // transaction. Otherwise another thread may call this mock
- // method in the middle and mess up the state.
- //
- // However, performing the action has to be left out of the critical
- // section. The reason is that we have no control on what the
- // action does (it can invoke an arbitrary user function or even a
- // mock function) and excessive locking could cause a dead lock.
- virtual const ExpectationBase* UntypedFindMatchingExpectation(
- const void* untyped_args,
- const void** untyped_action, bool* is_excessive,
- ::std::ostream* what, ::std::ostream* why)
- GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
- const ArgumentTuple& args =
- *static_cast<const ArgumentTuple*>(untyped_args);
- MutexLock l(&g_gmock_mutex);
- TypedExpectation<F>* exp = this->FindMatchingExpectationLocked(args);
- if (exp == NULL) { // A match wasn't found.
- this->FormatUnexpectedCallMessageLocked(args, what, why);
- return NULL;
- }
-
- // This line must be done before calling GetActionForArguments(),
- // which will increment the call count for *exp and thus affect
- // its saturation status.
- *is_excessive = exp->IsSaturated();
- const Action<F>* action = exp->GetActionForArguments(this, args, what, why);
- if (action != NULL && action->IsDoDefault())
- action = NULL; // Normalize "do default" to NULL.
- *untyped_action = action;
- return exp;
- }
-
- // Prints the given function arguments to the ostream.
- virtual void UntypedPrintArgs(const void* untyped_args,
- ::std::ostream* os) const {
- const ArgumentTuple& args =
- *static_cast<const ArgumentTuple*>(untyped_args);
- UniversalPrint(args, os);
- }
-
- // Returns the expectation that matches the arguments, or NULL if no
- // expectation matches them.
- TypedExpectation<F>* FindMatchingExpectationLocked(
- const ArgumentTuple& args) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- // See the definition of untyped_expectations_ for why access to
- // it is unprotected here.
- for (typename UntypedExpectations::const_reverse_iterator it =
- untyped_expectations_.rbegin();
- it != untyped_expectations_.rend(); ++it) {
- TypedExpectation<F>* const exp =
- static_cast<TypedExpectation<F>*>(it->get());
- if (exp->ShouldHandleArguments(args)) {
- return exp;
- }
- }
- return NULL;
- }
-
- // Returns a message that the arguments don't match any expectation.
- void FormatUnexpectedCallMessageLocked(
- const ArgumentTuple& args,
- ::std::ostream* os,
- ::std::ostream* why) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- *os << "\nUnexpected mock function call - ";
- DescribeDefaultActionTo(args, os);
- PrintTriedExpectationsLocked(args, why);
- }
-
- // Prints a list of expectations that have been tried against the
- // current mock function call.
- void PrintTriedExpectationsLocked(
- const ArgumentTuple& args,
- ::std::ostream* why) const
- GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
- g_gmock_mutex.AssertHeld();
- const int count = static_cast<int>(untyped_expectations_.size());
- *why << "Google Mock tried the following " << count << " "
- << (count == 1 ? "expectation, but it didn't match" :
- "expectations, but none matched")
- << ":\n";
- for (int i = 0; i < count; i++) {
- TypedExpectation<F>* const expectation =
- static_cast<TypedExpectation<F>*>(untyped_expectations_[i].get());
- *why << "\n";
- expectation->DescribeLocationTo(why);
- if (count > 1) {
- *why << "tried expectation #" << i << ": ";
- }
- *why << expectation->source_text() << "...\n";
- expectation->ExplainMatchResultTo(args, why);
- expectation->DescribeCallCountTo(why);
- }
- }
-
- // There is no generally useful and implementable semantics of
- // copying a mock object, so copying a mock is usually a user error.
- // Thus we disallow copying function mockers. If the user really
- // wants to copy a mock object, they should implement their own copy
- // operation, for example:
- //
- // class MockFoo : public Foo {
- // public:
- // // Defines a copy constructor explicitly.
- // MockFoo(const MockFoo& src) {}
- // ...
- // };
- GTEST_DISALLOW_COPY_AND_ASSIGN_(FunctionMockerBase);
-}; // class FunctionMockerBase
-
-GTEST_DISABLE_MSC_WARNINGS_POP_() // 4355
-
-// Implements methods of FunctionMockerBase.
-
-// Verifies that all expectations on this mock function have been
-// satisfied. Reports one or more Google Test non-fatal failures and
-// returns false if not.
-
-// Reports an uninteresting call (whose description is in msg) in the
-// manner specified by 'reaction'.
-void ReportUninterestingCall(CallReaction reaction, const std::string& msg);
-
-} // namespace internal
-
-// The style guide prohibits "using" statements in a namespace scope
-// inside a header file. However, the MockSpec class template is
-// meant to be defined in the ::testing namespace. The following line
-// is just a trick for working around a bug in MSVC 8.0, which cannot
-// handle it if we define MockSpec in ::testing.
-using internal::MockSpec;
-
-// Const(x) is a convenient function for obtaining a const reference
-// to x. This is useful for setting expectations on an overloaded
-// const mock method, e.g.
-//
-// class MockFoo : public FooInterface {
-// public:
-// MOCK_METHOD0(Bar, int());
-// MOCK_CONST_METHOD0(Bar, int&());
-// };
-//
-// MockFoo foo;
-// // Expects a call to non-const MockFoo::Bar().
-// EXPECT_CALL(foo, Bar());
-// // Expects a call to const MockFoo::Bar().
-// EXPECT_CALL(Const(foo), Bar());
-template <typename T>
-inline const T& Const(const T& x) { return x; }
-
-// Constructs an Expectation object that references and co-owns exp.
-inline Expectation::Expectation(internal::ExpectationBase& exp) // NOLINT
- : expectation_base_(exp.GetHandle().expectation_base()) {}
-
-} // namespace testing
-
-GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
-
-// Implementation for ON_CALL and EXPECT_CALL macros. A separate macro is
-// required to avoid compile errors when the name of the method used in call is
-// a result of macro expansion. See CompilesWithMethodNameExpandedFromMacro
-// tests in internal/gmock-spec-builders_test.cc for more details.
-//
-// This macro supports statements both with and without parameter matchers. If
-// the parameter list is omitted, gMock will accept any parameters, which allows
-// tests to be written that don't need to encode the number of method
-// parameter. This technique may only be used for non-overloaded methods.
-//
-// // These are the same:
-// ON_CALL(mock, NoArgsMethod()).WillByDefault(...);
-// ON_CALL(mock, NoArgsMethod).WillByDefault(...);
-//
-// // As are these:
-// ON_CALL(mock, TwoArgsMethod(_, _)).WillByDefault(...);
-// ON_CALL(mock, TwoArgsMethod).WillByDefault(...);
-//
-// // Can also specify args if you want, of course:
-// ON_CALL(mock, TwoArgsMethod(_, 45)).WillByDefault(...);
-//
-// // Overloads work as long as you specify parameters:
-// ON_CALL(mock, OverloadedMethod(_)).WillByDefault(...);
-// ON_CALL(mock, OverloadedMethod(_, _)).WillByDefault(...);
-//
-// // Oops! Which overload did you want?
-// ON_CALL(mock, OverloadedMethod).WillByDefault(...);
-// => ERROR: call to member function 'gmock_OverloadedMethod' is ambiguous
-//
-// How this works: The mock class uses two overloads of the gmock_Method
-// expectation setter method plus an operator() overload on the MockSpec object.
-// In the matcher list form, the macro expands to:
-//
-// // This statement:
-// ON_CALL(mock, TwoArgsMethod(_, 45))...
-//
-// // ...expands to:
-// mock.gmock_TwoArgsMethod(_, 45)(WithoutMatchers(), nullptr)...
-// |-------------v---------------||------------v-------------|
-// invokes first overload swallowed by operator()
-//
-// // ...which is essentially:
-// mock.gmock_TwoArgsMethod(_, 45)...
-//
-// Whereas the form without a matcher list:
-//
-// // This statement:
-// ON_CALL(mock, TwoArgsMethod)...
-//
-// // ...expands to:
-// mock.gmock_TwoArgsMethod(WithoutMatchers(), nullptr)...
-// |-----------------------v--------------------------|
-// invokes second overload
-//
-// // ...which is essentially:
-// mock.gmock_TwoArgsMethod(_, _)...
-//
-// The WithoutMatchers() argument is used to disambiguate overloads and to
-// block the caller from accidentally invoking the second overload directly. The
-// second argument is an internal type derived from the method signature. The
-// failure to disambiguate two overloads of this method in the ON_CALL statement
-// is how we block callers from setting expectations on overloaded methods.
-#define GMOCK_ON_CALL_IMPL_(mock_expr, Setter, call) \
- ((mock_expr).gmock_##call)(::testing::internal::GetWithoutMatchers(), NULL) \
- .Setter(__FILE__, __LINE__, #mock_expr, #call)
-
-#define ON_CALL(obj, call) \
- GMOCK_ON_CALL_IMPL_(obj, InternalDefaultActionSetAt, call)
-
-#define EXPECT_CALL(obj, call) \
- GMOCK_ON_CALL_IMPL_(obj, InternalExpectedAt, call)
-
-#endif // GMOCK_INCLUDE_GMOCK_GMOCK_SPEC_BUILDERS_H_