Gtest和Gmock的安装使用

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最新推荐文章于 2025-04-02 23:08:19 发布

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分类专栏： unit-test C++ 文章标签： Gmock Gtest

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本文介绍了解决LNK2019错误的方法，主要是由于错误地添加了库文件导致的问题。解决方案是仅添加gtestd.lib（及gtest_maind.lib，如果不希望自行编写main函数）。并详细介绍了如何下载、编译gtest和gmock库，设置包含路径，以及如何在Visual Studio中正确链接这些库。

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If you meet LNK2019 Problem

Reason: you add wrong lib.
Solution: only add gtestd.lib (and gtest_maind.lib, if don’t want to write main function by yourself).

Tutorial

In short

download gtest and gmock form here.
compile them into libraries and link your test with it (choose file according to your develop environment, msvc for visual studio).
add profiles contains .h file

Detail

1. Gtest

Download gtest(and gmock, if you need use its mock function).
github clone project from here.
open gtest.sln.
build all under Debug( and release) mode [I don’t think we only need dug version]. Then we can get (gtestd.lib and gtest_maind.lib) for debug, (gtest.lib and gtest_maind.lib) for release.
copy four of them in a lib profile(I save it under include).
setting in your test project.
- add lib dependencies.
  [ properties -> linker -> general ]
- add lib (for debug)
  Attention: only add (gtestd.lib and gtest_maind.lib), if you only want debug.(otherwise, it will has LNK2038 problem)
- add additional include directories
  – [ properties -> c/c++ -> additional include directories ]
  – Thus, we could write #include “gtest\gtest.h”.( you also need to add address to “gmock\gmock.h”, if you want use gmock).
change runtime library.
– MTd for debug; MT for release.

Write a test demo

#include <tchar.h>
#include <gtest/gtest.h>

int Foo(int a, int b)
{
    if (a == 0 || b == 0)
    {
        throw "don't do that";
    }
    int c = a % b;
    if (c == 0)
        return b;
    return Foo(b, c);
}

TEST(FooTest, HandleNoneZeroInput)
{
    EXPECT_EQ(2, Foo(4, 10));
    EXPECT_EQ(6, Foo(30, 18));
}

int _tmain(int argc, _TCHAR* argv[])
{
    testing::InitGoogleTest(&argc, argv);
    RUN_ALL_TESTS();
    system("pause");
    return 0;
}