Adds test coverage to Cython files

[fenilsuchak]

Changes made in this Pull Request:

• Added test coverage for cython, works fine locally. Minor changes from PR enabled coverage for cython #2029. This looks kind of a hacky way to me, please review

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

[codecov]

Codecov Report

Merging #2254 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           develop   #2254   +/-   ##
=======================================
  Coverage     89.7%   89.7%           
=======================================
  Files          160     160           
  Lines        19769   19769           
  Branches      2783    2783           
=======================================
  Hits         17733   17733           
  Misses        1440    1440           
  Partials       596     596

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[richardjgowers]

@Fenil3510 we can't add the c/cpp files to ignore because we do include them in the master branch. So releases don't require Cython.

[richardjgowers]

Ideally this isn't on by default as I'm guessing it has a performance cost. We could probably look for one of the travis/CI environment variables to trigger this?

[fenilsuchak]

Yes, this is not a default one and there's an environment variable to trigger this as you had already done in #2029, but I was forcing this to look at the results for now.

[fenilsuchak]

.pyx still not visible in codecov report. Have to work on it.

[fenilsuchak]

@Fenil3510 we can't add the c/cpp files to ignore because we do include them in the master branch. So releases don't require Cython.

The .c files were due to local build, will have to remove them anyway.