C语言 Google Test 可以测试 C 代码吗？
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Is Google Test OK for testing C code?
提问by Jason
So I've come to like and enjoy using Google Test for a C++ project I'm involved in. I'm just bringing up a new project that will be straight C (a library) and so far can't see any reason why not to continuing using Google Test, even though its a C++ framework. Having a C++ compiler available will not be an issue.
所以我开始喜欢并喜欢在我参与的 C++ 项目中使用 Google 测试。不要继续使用 Google Test，即使它是一个 C++ 框架。拥有可用的 C++ 编译器将不是问题。
Are there are specific reasons why I shouldn't use Google Test for testing straight C code?
为什么我不应该使用 Google Test 来测试直接的 C 代码，是否有特定的原因？
Thanks.
谢谢。
回答by mikelong
It is pretty common to test C code using a C++ testing frameworks, even the leading book on the subjectfollows this approach. I have used googletest extensively in the past to unit test C code and can recommend it.
使用 C++ 测试框架测试 C 代码是很常见的，即使是关于该主题的主要书籍也遵循这种方法。我过去曾广泛使用 googletest 对 C 代码进行单元测试，可以推荐它。
I have written a blog post about it that might be useful: http://meekrosoft.wordpress.com/2009/11/09/unit-testing-c-code-with-the-googletest-framework/
我写了一篇关于它可能有用的博客文章：http: //meekrosoft.wordpress.com/2009/11/09/unit-testing-c-code-with-the-googletest-framework/
回答by Alex B
As all Google's C++ code, Google Test does not use exceptions, so exception safety flow won't be an issue. As long as your headers are C++-compatible (not using C++ keywords, export symbols with correct linkage), it should be fine.
与所有 Google 的 C++ 代码一样，Google Test 不使用异常，因此异常安全流不会成为问题。只要您的头文件与 C++ 兼容（不使用 C++ 关键字，导出具有正确链接的符号），应该没问题。
回答by Zdeno Pavlik
Jason, be aware of that!!! :D
杰森，注意这一点！！！:D
As Meekrosoft said, yes, it is possible. I also used his website when I tried to do that. It works, but there is one big problem:
正如 Meekrosoft 所说，是的，这是可能的。当我尝试这样做时，我也使用了他的网站。它有效，但有一个大问题：
GTest is objected oriented tool and C language isn't!
GTest 是面向对象的工具而 C 语言不是！
In example, in GTest you have a lot of functions (80% of whole API) that request object as parameter, for example:
例如，在 GTest 中有很多函数（整个 API 的 80%）请求对象作为参数，例如：
EXPECT_CALL(turtle, PenDown()) // turtle is object(class) and PenDown() is method of that object
.Times(AtLeast(1));
from GTest website https://code.google.com/p/googlemock/wiki/ForDummiesso you will use only macros like expect_equal, expect_bigger_than and so on...
来自 GTest 网站https://code.google.com/p/googlemock/wiki/ForDummies所以你将只使用像expect_equal、expect_bigger_than等宏......
I would like to suggest you tool CMocka(or some other C unit testing tools). It is also from google (modified by group of non-google developers) and it is created directly for C language. I use this one when I want to test C-type source code.
我想建议您使用CMocka（或其他一些 C 单元测试工具）。它也是来自 google（由非 google 开发人员小组修改），它是直接为 C 语言创建的。当我想测试 C 类型的源代码时，我会使用这个。
I hope this helps.. :-) Have a nice day.. :-)
我希望这会有所帮助.. :-) 祝您有美好的一天.. :-)
回答by Kim Gr?sman
I just thought I'd add another point: since gtest is C++, you'll be parsing your C headers under test as C++. This means the tests don't guarantee that the headers are consumable from C. I recently ran into this with a C library I'm building.
我只是想补充一点：由于 gtest 是 C++，因此您将在测试中将 C 头文件解析为 C++。这意味着测试不能保证头文件可以从 C 中使用。我最近在构建一个 C 库时遇到了这个问题。
回答by Friedrich
I could not name one. I guess there will be some things which you don't have in "normal" C. E.g I think the TestCase are derived from a certain class. But within the test you can test whatever you like and so why not C?
我无法说出一个名字。我想会有一些你在“正常”CEg 中没有的东西我认为 TestCase 是从某个类派生的。但是在测试中你可以测试任何你喜欢的东西，那么为什么不测试 C？
