Setup test coverage reporting

[alexcos20]

No description provided.

[kremalicious]

Not exactly clear what this entails but noticing that almost all unit tests:

• are commented out
• are written in a way which makes them not just unit tests
• bunch of them were not run because of path globbing (see 31bec3c)

They always get the full ocean instance, but for the unit tests we should rather import the classes directly into its respective test file. Doing it that way would already allow us to run more of the commented-out tests because I think that is why they were commented out, not being able to initiate Ocean in unit tests.

And to get visibility into test coverage we should have:

• coverage report for unit tests
• coverage report for integration test
• setup CodeClimate
• on Travis, combine both coverage reports into one and send to CodeClimate