change coverage options to match github build steps

[MattShirley]

Modify pyproject.toml to support coverage options closer aligned to the GitHub build steps:

test = "pytest {args}"
cov = "coverage run --source servicex/ -m pytest tests && coverage report"
cov-html = "coverage run --source servicex/ -m pytest tests && coverage html"```

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.49%. Comparing base (196629e) to head (3ccbcd2).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #622   +/-   ##
=======================================
  Coverage   96.49%   96.49%           
=======================================
  Files          29       29           
  Lines        1939     1939           
=======================================
  Hits         1871     1871           
  Misses         68       68           

Flag	Coverage Δ
unittests	96.49% <ø> (ø)

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[ponyisi]

@MattShirley any idea why this seems to reduce the number of tested lines?

[MattShirley]

@MattShirley any idea why this seems to reduce the number of tested lines?

It looks like it's because I had previously set branch = true in the coverage config.

[tool.coverage.run]
source = ["servicex"]
omit = [
    "*/tests/*",
    "*/test_*",
]

This option tests all flows of a conditional statement, so we might want to enable that for the code coverage GH Actions. https://coverage.readthedocs.io/en/latest/branch.html