🧪🚑 Fix coverage.py-included paths @ XML

[webknjaz]

This patch fixes the directory misattribution of test file paths by marking the entire repository directory as source.

fixes #1026 (comment)
closes #1029
closes #1071
ref https://github.com/orgs/aio-libs/discussions/36

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.89%. Comparing base (3d5ce65) to head (3effd15).
Report is 345 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1074       +/-   ##
===========================================
+ Coverage   62.40%   92.89%   +30.49%     
===========================================
  Files          38       26       -12     
  Lines        6626     4295     -2331     
  Branches      356      356               
===========================================
- Hits         4135     3990      -145     
+ Misses       2464      279     -2185     
+ Partials       27       26        -1     

Flag	Coverage Δ
CI-GHA	92.87% <ø> (+30.49%)	⬆️
MyPy	25.67% <ø> (ø)
OS-Linux	99.25% <ø> (ø)
OS-Windows	99.58% <ø> (ø)
OS-macOS	99.02% <ø> (ø)
Py-3.10.11	98.90% <ø> (ø)
Py-3.10.14	99.10% <ø> (ø)
Py-3.11.9	99.10% <ø> (ø)
Py-3.12.5	99.10% <ø> (ø)
Py-3.13.0-rc.1	99.10% <ø> (ø)
Py-3.8.10	98.87% <ø> (ø)
Py-3.8.18	99.07% <ø> (ø)
Py-3.9.13	98.87% <ø> (ø)
Py-3.9.19	99.07% <ø> (ø)
Py-pypy7.3.11	99.39% <ø> (ø)
Py-pypy7.3.16	99.42% <ø> (ø)
VM-macos-latest	99.02% <ø> (ø)
VM-ubuntu-latest	99.25% <ø> (ø)
VM-windows-latest	99.58% <ø> (ø)

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[bdraco]

Works for me. This is less invasive than the alternative #1071

[bdraco]

We are still getting misses for multi-line coverage but its much better that we can see whats covered now 👍

[webknjaz]

@bdraco multiline? do you mean branches?

[bdraco]

Statements that span more than one line.

[bdraco]

Ie

x = URL(
   Code in here shows as not covered
)

[bdraco]

https://app.codecov.io/gh/aio-libs/yarl/blob/master/yarl%2F_url.py#L263

https://app.codecov.io/gh/aio-libs/yarl/blob/master/yarl%2F_url.py#L281

https://app.codecov.io/gh/aio-libs/yarl/blob/master/yarl%2F_url.py#L300

[bdraco]

nedbat/coveragepy#571

[webknjaz]

@bdraco that shows up as covered for me..

[webknjaz]

@bdraco oh... I see what you're talking about! That's not related to coverage.py. It excludes those lines (so they aren't marked as covered or uncovered). However, we also upload coverage reports generated by MyPy and it explicitly marks the lines you're referring to as uncovered.

The fix should be done in the context of MyPy, not pytest.

[webknjaz]

One way to spot this would be toggling the flags on the UI. For example, if you go to Codecov and select a flag only reported from pytest jobs (like Py-3.11.9), you can see that coverage is actually 100% thanks to those lines you referred being excluded: https://app.codecov.io/gh/aio-libs/yarl/pull/1074/blob/tests/test_url.py?flags%5B0%5D=Py-3.11.9.

Meanwhile, I've added a pytest flag so that it'd be possible to just select MyPy or pytest and show one type of coverage vs. the other w/o having to guess flags.