00 Start Google Test for CMake

Start : Google Test for CMake

编译器必须支持C++14

1. 创建项目并依赖Google Test（pull from remote）

​ 创建项目根目录：

mkdir my_project && cd my_project

​ 创建CMakeLists.txt，本项目使用FetchContent来获取GoogleTest：

cmake_minimum_required(VERSION 3.14)
project(my_project)

# GoogleTest requires at least C++14
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

include(FetchContent)
FetchContent_Declare(
  googletest
  URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
)
# For Windows: Prevent overriding the parent project's compiler/linker settings
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(googletest)

2. 使用GoogleTest编写测试

​ 创建hello_test.cc：

#include <gtest/gtest.h>

// Demonstrate some basic assertions.
TEST(HelloTest, BasicAssertions) {
  // Expect two strings not to be equal.
  EXPECT_STRNE("hello", "world");
  // Expect equality.
  EXPECT_EQ(7 * 6, 42);
}

​ 补充CMakeLists.txt：

enable_testing()

add_executable(
  hello_test
  hello_test.cc
)
target_link_libraries(
  hello_test
  GTest::gtest_main
)

include(GoogleTest)
gtest_discover_tests(hello_test)

3. 执行测试

cmake -S . -B build
cmake --build build
cd build && ctest

参考资料

发布于