系列文章目录

第一章 UT单元测试——GoogleTest通用构建说明
 第二章 UT单元测试——GTest框架实例

文章目录

前言

第一章介绍了GTest通用构建说明，本文就按照说明中推荐的方法搭建一套GTest框架实例吧。

提示：以下是本篇文章正文内容，下面案例可供参考

一、环境配置

本文使用Linux环境。（后续补充）

二、使用步骤

1.添加待测源码

下载官方示例代码，或者导入已有代码。

example.cpp（示例）：

#include <stdio.h>int main(){  printf("Hello gtest\n");}

2.修改cmake文件

CMakelists.txt.in：

cmake_minimum_required(VERSION 2.8.12)project(googletest-download NONE)include(ExternalProject)ExternalProject_Add(googletest  GIT_REPOSITORY    https://github.com/google/googletest.git  GIT_TAG           master  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"  CONFIGURE_COMMAND ""  BUILD_COMMAND     ""  INSTALL_COMMAND   ""  TEST_COMMAND      "")

CMakelists.txt：

cmake_minimum_required(VERSION 3.16)project(GoogleTestExpl)# Download and unpack googletest at configure timeconfigure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .  RESULT_VARIABLE result  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )if(result)  message(FATAL_ERROR "CMake step for googletest failed: ${result}")endif()execute_process(COMMAND ${CMAKE_COMMAND} --build .  RESULT_VARIABLE result  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )if(result)  message(FATAL_ERROR "Build step for googletest failed: ${result}")endif()# Prevent overriding the parent project's compiler/linker# settings on Windowsset(gtest_force_shared_crt ON CACHE BOOL "" FORCE)# Add googletest directly to our build. This defines# the gtest and gtest_main targets.add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src                 ${CMAKE_CURRENT_BINARY_DIR}/googletest-build                 EXCLUDE_FROM_ALL)# Now simply link against gtest or gtest_main as needed. Egadd_executable(example example.cpp)target_link_libraries(example gtest_main)add_test(NAME example_test COMMAND example)# batch compile samplesfile(GLOB_RECURSE utfiles ${CMAKE_CURRENT_SOURCE_DIR} samples/*_unittest.cc)file(GLOB_RECURSE srcfiles ${CMAKE_CURRENT_SOURCE_DIR} samples/*[0-9].cc)list(LENGTH utfiles utfileslen)message(STATUS "utfileslen=${utfileslen}")list(LENGTH srcfiles srcfileslen)message(STATUS "srcfileslen=${srcfileslen}")# get all srcsforeach(srcfile IN LISTS srcfiles)  file(RELATIVE_PATH srcfilename ${CMAKE_CURRENT_SOURCE_DIR}/samples ${srcfile})  list(APPEND srcfilenames ${srcfilename})endforeach(srcfile IN LISTS srcfiles)message(STATUS "srcfilenames=${srcfilenames}")# compile utfile with srcsforeach(utfile IN LISTS utfiles)  file(RELATIVE_PATH utfilename ${CMAKE_CURRENT_SOURCE_DIR}/samples ${utfile})  list(FIND utfiles ${utfile} i)  # get filename without extension  get_filename_component(targetname ${utfile} NAME_WE)  add_executable(${targetname} ${utfile} ${srcfiles})  target_link_libraries (${targetname} gtest_main)  add_test(NAME ${targetname}_test COMMAND ${targetname})  message(STATUS "Recipe ${i}: test=${targetname}_test, target=${targetname}, ut=${utfilename}, src=${srcfilenames}, link=gtest_main")endforeach(utfile IN LISTS utfiles)

3.添加自动化脚本

setup.sh：

mkdir buildcd buildcmake ..make -j4# test samples../test_samples.sh# test example../test_example.sh

test_samples.sh：

# get this script pathcurPath=$(dirname $(readlink -f "$0"))echo "entering build..."cd $curPath/buildpwd# execute sample programsfor file in `ls -dv sample[0-9]*`doecho "testing $file..."./$filedone

test_example.sh：

# get this script pathcurPath=$(dirname $(readlink -f "$0"))echo "entering build..."cd $curPath/buildpwd# execute sample programsfor file in `ls -dv example`doecho "testing $file..."./$filedone

4.运行GTest实例

README.md：

A simple framework implementation of GoogleTest.Linux command:1. chmod  x setup.sh test_samples.sh test_example.sh2. ./setup

5.运行结果

测试结果待补充。

总结

以上就是今天要讲的内容，本文仅仅简单介绍了GTest框架的使用，而GTest框架提供了大量能使我们快速便捷地模拟和测试的工具和方法。

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