install

installation check

dpkg -l | grep gtest
# or
apt list --installed | grep gtest

check GTest headers

ls /usr/include/gtest/gtest.h
# or
find /usr -name "gtest.h" 2>/dev/null

Check if GTest is available using pkg-config

pkg-config --modversion gtest

application

simple application

cmake_minimum_required(VERSION 3.10)
project(MyTestProject)

# Enable testing: Without calling `enable_testing()`, you cannot use the `add_test()` command, and testing features will not be available in your project.
enable_testing()

# Find Google Test
find_package(GTest REQUIRED)

# Include directories for Google Test
include_directories(${GTEST_INCLUDE_DIRS})

# Add your test source file
add_executable(my_tests my_tests.cpp)

# Link Google Test libraries
target_link_libraries(my_tests GTest::GTest GTest::Main)
# target_link_libraries(my_tests  gtest gtest_main)


# Add the test to CTest: registers a test with the CMake testing system; You can define and run multiple tests in an organized way; Works seamlessly with continuous integration systems to automate testing pipelines; You can pass specific arguments to your test binary.
add_test(NAME MyTests COMMAND my_tests)

#include <gtest/gtest.h>

TEST(Test, test1)
{

}

int main(int argc, char **argv)
{
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}