Run the test Python file

[khatchad]

For each unit test that takes a Python file as input, run the Python file and check the status code. Unless we are testing invalid Python files, we should get a status code of 0. This would enable checking the usage of assert statements in the Python files.

[khatchad]

Here's an example:

https://github.com/ponder-lab/Hybridize-Functions-Refactoring/blob/444af9ec757648a3ddf678b6f2ce82fbc4aa9231/edu.cuny.hunter.hybridize.tests/test%20cases/edu/cuny/hunter/hybridize/tests/HybridizeFunctionRefactoringTest.java#L547-L572

[khatchad]

This will slow down the build, but since it's multithreaded, I'm unsure by how much.

[khatchad]

It would be too slow, unfortunately.