Visual Studio 2012中的Google Test

Question

我正在尝试开始进行单元测试.我下载了最新版本的gtest,并将其解压缩到A:\gtest指定的指令中,我打开了gtest.sln.如果我同意更新它,Visual Studio只允许我打开sln.然后,当我尝试构建时,我遇到了一堆错误:

1>------ Build started: Project: gtest, Configuration: Debug Win32 ------
1>  gtest-all.cc
1>a:\gtest\include\gtest\gtest-printers.h(550): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\gtest-printers.h(558): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4017): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4249) : see reference to class template instantiation 'testing::internal::CartesianProductGenerator9<T1,T2,T3,T4,T5,T6,T7,T8,T9>' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4017): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4017): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4017): error C2955: 'testing::internal::ParamGeneratorInterface' : use of class template requires template argument list
1>          a:\gtest\include\gtest\internal\gtest-param-util.h(142) : see declaration of 'testing::internal::ParamGeneratorInterface'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4019): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4030): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4030): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4035): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4035): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4042): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4042) : see reference to class template instantiation 'testing::internal::CartesianProductGenerator9<T1,T2,T3,T4,T5,T6,T7,T8,T9>::Iterator' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4042): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4042): error C2955: 'testing::internal::ParamIteratorInterface' : use of class template requires template argument list
1>          a:\gtest\include\gtest\internal\gtest-param-util.h(69) : see declaration of 'testing::internal::ParamIteratorInterface'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4044): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4044): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4077): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4077): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4119): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4119): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4123): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4123): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4204): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4204): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4256): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4505) : see reference to class template instantiation 'testing::internal::CartesianProductGenerator10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4256): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4256): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4256): error C2955: 'testing::internal::ParamGeneratorInterface' : use of class template requires template argument list
1>          a:\gtest\include\gtest\internal\gtest-param-util.h(142) : see declaration of 'testing::internal::ParamGeneratorInterface'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4258): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4270): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4270): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4275): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4275): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4282): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4282) : see reference to class template instantiation 'testing::internal::CartesianProductGenerator10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>::Iterator' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4282): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4282): error C2955: 'testing::internal::ParamIteratorInterface' : use of class template requires template argument list
1>          a:\gtest\include\gtest\internal\gtest-param-util.h(69) : see declaration of 'testing::internal::ParamIteratorInterface'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4284): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4284): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4320): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4320): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4366): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4366): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4370): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4370): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4456): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4456): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4738): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4766) : see reference to class template instantiation 'testing::internal::CartesianProductHolder9<Generator1,Generator2,Generator3,Generator4,Generator5,Generator6,Generator7,Generator8,Generator9>' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4738): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4738): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4782): error C2977: 'std::tuple' : too many template arguments
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
1>          a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4813) : see reference to class template instantiation 'testing::internal::CartesianProductHolder10<Generator1,Generator2,Generator3,Generator4,Generator5,Generator6,Generator7,Generator8,Generator9,Generator10>' being compiled
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4782): error C3203: 'tuple' : unspecialized class template can't be used as a template argument for template parameter 'T', expected a real type
1>a:\gtest\include\gtest\internal\gtest-param-util-generated.h(4782): error C2955: 'std::tuple' : use of class template requires template argument list
1>          b:\program files (x86)\microsoft visual studio 2012\vc\include\utility(73) : see declaration of 'std::tuple'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

我做错了什么还是VS2012的问题？我不依赖谷歌测试,并不反对使用不同的框架,如果它与VS更好地工作,我刚刚听到关于gtest的非常好的事情.

Answer 1

VC++ 2012不支持(也绝不会)支持可变参数模板; 因此,它的标准库实现尝试使用预处理器生成的重载和特化来伪造它们.正如这篇博客文章指出的那样,虚假的可变参数模板参数的数量默认为5 - 问题是gtest试图std::tuple<>用多达10个模板参数进行实例化.

正如博客文章所提到的,您可以在_VARIADIC_MAX项目范围内定义宏以支持最多10个参数; 您可能希望通过项目的预处理程序定义设置来执行此操作,但重要的是确保每个TU在包含任何stdlib标头(直接或间接)之前定义它.

Answer 2

_VARIADIC_MAX我没有使用宏修改VS2012元组实现,而是通过在gtest项目和项目(包括gtest头文件)上定义以下两个宏来解决这个问题:

GTEST_HAS_TR1_TUPLE=0
GTEST_USE_OWN_TR1_TUPLE=1

设置GTEST_HAS_TR1_TUPLE为0可防止gtest尝试使用STL头中的元组类,并设置GTEST_USE_OWN_TR1_TUPLE为1指示gtest使用其自己的元组实现,而不是省略需要元组支持的功能.我个人更喜欢这个选项来调整STL实现,这个解决方案应该适用于任何其他有类似问题的编译器.

Answer 3

这在版本r675中得到修复.请参阅https://code.google.com/p/googletest/source/detail?r=675