Add base testcase class

[PythonCoderAS]

Test cases are a pain to debug in an interactive console, so this change will make it easier to deal with them in an interactive setting.

[bboe]

Can you explain the problem you're trying to solve with these changes?

[PythonCoderAS]

@bboe debugging the test classes to find where specific error occurs. When an assertion fails it could be an error in the testcase, or an error in a helper function for a method, which was an error when trying to test #1144. This also makes it so you can run tests without the full suite, if you want to test just a specific component.

[bboe]

How are you running the tests? Pytest can run specific tests by filename, or even by test name.

Could you perhaps give me an example of what sort of output hides where the failure occurs? Perhaps there's a better way to address the issue you are experiencing.

[PythonCoderAS]

@bboe let's say with #1144 I had a bunch of assert checks, where one assert was calling a function, and all i got was output saying "assertion failed, assert false" but it resolved to bound methods and not actual text

[bboe]

I think pytest would show you more information about the failure, but I could be wrong. Let's sit on this one for a bit.

[PythonCoderAS]

I guess this isn't needed anymore.