Start unit testing

[jdayton3]

I set up the tests/ directory and wrote some unit tests for the dpu_utils.codeutils.identifiersplitting.split_camelcase() function. The tests/ directory has the same file/directory structure as the dpu_utils/ directory. The only difference is that for a package called thing.py, the corresponding test is called test_thing.py.

Tests can be run with:

python setup.py test

Code coverage can be generated and viewed with:

# pip install coverage
coverage run --source dpu_utils/ setup.py test && \
  coverage html && \
  see htmlcov/index.html

Is there a place in the README or another file where this ⬆️ should be documented?

(Closes #5)

[msftclas]

All CLA requirements met.

[mallamanis]

Thanks for this. It looks great! Just one minor comment in the code.

Also, please do can add the instructions for running the test in the main README file. Create a new subsection before "Contributing" and add it there.

[mallamanis]

Could you rename this to TestIdentifierSplitting? (the test actually includes cases of snake_case)

[jdayton3]

This class actually only tests the split_camelcase() function. The snake_case test was just testing the case of splitting out underscores (i.e. snake_case -> ["snake", "_", "case"]), but I think that idea is sufficiently covered by test_special_characters_are_split(), so I deleted the snake_case test.

I was planning on making another class in a separate PR for testing split_identifier_into_parts() since it handles snake case and uppercase characters differently than split_camelcase(). Would you prefer if that was grouped into the same class / do you still want me to rename the class?

[jdayton3]

@mallamanis I added instructions to the README and commented on that thing in the code!

[mallamanis]

@jdayton3 Thanks a lot! Greatly appreciate your effort. Looking forward to more :)