add gtest mini project

.gitignore

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+# CMake generated files
+CMakeCache.txt
+CMakeFiles
+cmake_install.cmake
+Makefile
+*.make
+*.cmake
+
+# Build artifacts
+build/
+Release/
+Debug/
+*.o
+*.a
+*.so
+*.dylib
+*.lib
+*.dll
+*.exe
+*.out
+
+# Dependency directories (comment out if dependencies are tracked)
+# libs/
+
+# Editor backups and temporary files
+*~
+*.swp
+*.tmp
+
+# IDE specific files
+.vs/
+.vscode/
+*.code-workspace
+*.user
+*.suo
+*.userosscache
+*.sln
+*.opensdf
+*.ipch
+*.db
+*.opendb
+*.VC.db
+*.VC.VC.opendb
+_deps/
+
+
+# Other files to ignore
+.DS_Store
+Thumbs.db

c++/gtest_mini_project/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+project(your_project)
+
+set(CMAKE_CXX_STANDARD 11)
+
+# 添加src目录
+add_subdirectory(src)
+
+# 启用测试
+enable_testing()
+add_subdirectory(tests)

c++/gtest_mini_project/CTestTestfile.cmake

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+# CMake generated Testfile for 
+# Source directory: /Users/fangshuai03/mini_project/c++/gtest_mini_project
+# Build directory: /Users/fangshuai03/mini_project/c++/gtest_mini_project
+# 
+# This file includes the relevant testing commands required for 
+# testing this directory and lists subdirectories to be tested as well.
+subdirs("src")
+subdirs("tests")

c++/gtest_mini_project/src/CMakeLists.txt

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+# 创建一个库
+add_library(my_even my_even.cpp)
+
+# 指定这个库的头文件路径
+target_include_directories(my_even PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

c++/gtest_mini_project/src/my_even.cpp

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+#include "my_even.h"
+
+bool is_even(int num) {
+    return (num & 1) == 0;
+}

c++/gtest_mini_project/src/my_even.h

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+#ifndef MY_EVEN_HPP
+#define MY_EVEN_HPP
+
+bool is_even(int number);
+
+#endif

c++/gtest_mini_project/tests/CMakeLists.txt

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+# 下载和解压 Google Test
+include(FetchContent)
+FetchContent_Declare(
+  googletest
+  URL https://github.com/google/googletest/archive/release-1.10.0.zip
+)
+FetchContent_MakeAvailable(googletest)
+
+# 添加 Google Test 测试可执行文件
+add_executable(test_demo test_demo.cpp)
+
+# 链接测试执行文件与库
+target_link_libraries(test_demo gtest_main my_even)
+
+# 包含测试
+include(GoogleTest)
+gtest_discover_tests(test_demo)

c++/gtest_mini_project/tests/test_demo.cpp

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+
+#include "../src/my_even.h"
+#include <gtest/gtest.h>
+
+TEST(YourTest, IsEven) {
+    EXPECT_TRUE(is_even(2));
+    EXPECT_FALSE(is_even(3));
+}