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根据指定的说明，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试图使用多达10个模板参数来实例化std::tuple<> 。

正如博客文章所提到的，您可以在项目范围内定义_VARIADIC_MAX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

我没有使用_VARIADIC_MAX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

将GTEST_HAS_TR1_TUPLE设置为0可防止gtest尝试使用STL头中的元组类，并将GTEST_USE_OWN_TR1_TUPLE设置为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

Answer 4

此外，在获得最新版本之前，请将GTEST_USE_OWN_TR1_TUPLE=0添加到预处理器定义中。