Move and rename coverage file

[arjunsavel]

Description

I've moved the coverage configuration file to the TARDIS root directory; this should ensure that it is read in correctly (e.g., correct files are omitted from coverage calculation).

Motivation and Context

When running python setup.py test --coverage locally, I noticed that test files were being included in coverage counts. These are explicitly omitted in the coverage configuration file.

How Has This Been Tested?

Checking the coverage page for this PR seems to indicate that it works as expected.

Screenshots (if appropriate):

The above image shows the coverage sunburst from our codecov page, which notably includes test folders that are excluded in the configuration file. By changing the location of the coverage file, this will (hopefully!) be fixed.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have assigned/requested two reviewers for this pull request.

[codecov]

Codecov Report

Merging #1218 into master will increase coverage by 2.91%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1218      +/-   ##
==========================================
+ Coverage   77.71%   80.63%   +2.91%     
==========================================
  Files          91       41      -50     
  Lines        5727     3423    -2304     
==========================================
- Hits         4451     2760    -1691     
+ Misses       1276      663     -613     

Impacted Files	Coverage Δ
tardis/scripts/cmfgen2tardis.py	0.00% <0.00%> (ø)
tardis/io/tests/test_config_reader.py
tardis/tests/fixtures/atom_data.py
tardis/montecarlo/tests/test_spectrum.py
tardis/simulation/setup_package.py
tardis/io/tests/test_config_validator.py
tardis/io/tests/test_csvy_reader.py
tardis/io/__init__.py
...s/plasma/tests/test_tardis_model_density_config.py
tardis/tests/test_tardis_full.py
... and 47 more

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[epassaro]

I don't know so much about coverage.

This is the .coveragerc file from carsus: https://github.com/tardis-sn/carsus/blob/master/carsus/tests/coveragerc

[marxwillia]

Looks good. Just want to make sure you aren't missing an ending '*' in line 47?

[arjunsavel]

@marxwillia thanks for the suggestion — done!

[epassaro]

How does the sunburst graph looks now?

[arjunsavel]

@epassaro can't quite get the sunburst graph to happen — but here's how the tree looks. No tests are being checked for coverage anymore!