Issue with Google Test in Visual Studio 2017

Question

I am trying to use Visual Studio 2017 to create a C++ project and then test it with Google Test. I followed this guide to create my project and set Google Test for it: https://learn.microsoft.com/en-us/visualstudio/test/how-to-use-google-test-for-cpp

My solution has two projects Matrix and Matrix-Test (Google Test project). Project Matrix contains a class called Table. Project Matrix-Test contains a single test where a Table object is declared. Everything looks like this:

If I try to build the solution I get the following errors:

However, if I don't declare the Table object in the test, then the solution builds successfully.

Please let me know if you have any idea why I get these errors. Thank you!

It's been a while since I did VisualStudio, but your Matrix project should be configured to create a library (.lib) output. And then your Matrix-Test needs to link using this library, which will fix the linker errors. — Hitobat
– Hitobat, Commented May 8, 2018 at 18:58
Based on your suggestion I tried to create static library project instead of a regular console application and add Google Test to it. It built without any errors. Maybe you can post as an answer for how to configure a console application project to create the library (.lib). — Zan
– Zan, Commented May 8, 2018 at 20:54

salchint · Accepted Answer · 2019-01-23 16:08:38Z

1

The walkthrough https://learn.microsoft.com/en-us/cpp/windows/walkthrough-creating-and-using-a-static-library-cpp?view=vs-2017 will guide you through the process of making your project Matix a static library.

Then you can add this library (e.g. Matrix.lib) as an input to the linker in the Matrix-Test project. This will solve the unresolved external symbol error in regard to your Table class.

answered Jan 23, 2019 at 16:08

salchint

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