Added number_of_threads()

1 files changed, 11 insertions, 1 deletions

diff --git a/tests/test-process.cpp b/tests/test-process.cpp
index dfee83f..9855546 100644
--- a/tests/test-process.cpp
+++ b/tests/test-process.cpp
@@ -1,5 +1,7 @@
 #include <gtest/gtest.h>
 
+#include <thread>
+
 #include "process.h"
 
 #include <unistd.h>
@@ -23,7 +25,7 @@ protected:
 
 };
 
-TEST_F(ProcessTest,is_running) {
+TEST_F(ProcessTest, is_running) {
  auto pid{::getpid()};
 
  EXPECT_NE(pid, -1);
@@ -32,3 +34,11 @@ TEST_F(ProcessTest,is_running) {
 
  EXPECT_EQ(Reichwein::Process::is_running(999999999), false);
 }
+
+TEST_F(ProcessTest, number_of_threads) {
+ EXPECT_EQ(Reichwein::Process::number_of_threads(::getpid()), 1);
+ std::thread t1{[](){std::this_thread::sleep_for(std::chrono::milliseconds(50));}};
+ EXPECT_EQ(Reichwein::Process::number_of_threads(::getpid()), 2);
+ t1.join();
+ EXPECT_EQ(Reichwein::Process::number_of_threads(::getpid()), 1);
+}