Catch簡介

1. Catch 是一個c++ 單元測試框架
2. Catch是一個單頭文件的測試框架，使用簡單，幾乎不需要配置或安裝其它依賴

Get Started

下載Catch頭文件

• github.com/catchorg/Catch2 下載catch2.hpp文件
• 將catch2.hpp文件放入到本地項目

創(chuàng)建測試項目，目錄結構如下

.
├── build
├── CMakeLists.txt
├── main.cpp
└── tests
    ├── catch.hpp
    └── test.cpp

寫測試demo

打開test.cpp

#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
#include "catch.hpp"

unsigned int Factorial( unsigned int number ) {
    return number <= 1 ? number : Factorial(number-1)*number;
}

TEST_CASE( "Factorials are computed", "[factorial]" ) {
    REQUIRE( Factorial(1) == 1 );
    REQUIRE( Factorial(2) == 2 );
    REQUIRE( Factorial(3) == 6 );
    REQUIRE( Factorial(10) == 3628800 );
}

編譯

1.修改CMakeLists.txt：

cmake_minimum_required(VERSION 3.14)
project(catchDemo)

set(CMAKE_CXX_STANDARD 14)

add_executable(catchDemo tests/test.cpp)

2.編譯

cd build
cmake ../  
make

3.獲得可執(zhí)行文件

image.png

運行可執(zhí)行文件

• ./catchDemo

• 得到運行結果：

  
  
  image.png

參考文檔：

• https://github.com/catchorg/Catch2
• https://medium.com/dsckiit/a-guide-to-using-catch2-for-unit-testing-in-c-f0f5450d05fb