Creating a unit test library for a C++ WinRT library

Question

I dont have much experience with Visual Studio testing framework. I am trying to create a Unit test library for a C++ WinRT library. I created a Unit Test Library and added a reference to the WinRT library. My WinRT library contains ref classes as well as "ordinary" classes that are not exposed. My problem is how do I test the ordinary C++ classes from the Unit test library as they are not accessible from the test library.

Answer 1

Hello,

I would suggest you to create a native unit test project to test ordinary C++ class. You can find this project in Visual C++\Test\Native Unit Test Project.

We can separate test the native part and WinRT part, and then include the native part as the reference into your WinRT project.

Best regards,
Jesse

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Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us

Answer 2

The ordinary classes are not ref classes, but they do contain some WinRT datatypes. I simply didnt make them ref as they are not needed outside the assembly. A Native Unit test will not be suitable to test them as they do not pure C++ either!

Answer 3

I followed the instructions here to create a unit test in the same project for a WinRT dll.

http://msdn.microsoft.com/en-us/library/hh419385%28v=vs.110%29.aspx#sameProject

Basically modified the include and the library paths and create a C++ unit test class in the same project. When i run the unit test, it says 

------ Run test started ------
An internal error occurred while launching test executor for Windows Metro style app.

Answer 4

Possible solutions discussed at

http://social.msdn.microsoft.com/Forums/en-US/vstest/thread/e6a0b7f2-05f0-4bd4-bff1-2c2123398f56

Thanks

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Regards,
Vikram Agrawal,
Developer, VSTLM, Microsoft Corporation