python config_error ai_generated true

FAIL Required test coverage of 80% not reached. Total coverage: 74.31%

ID: python/pytest-cov-fail-under-missing

Also available as: JSON · Markdown · 中文
80%Fix Rate
88%Confidence
0Evidence
2024-05-06First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
5.x active — — —
6.x active — — —

Root Cause

pytest-cov --cov-fail-under compares total coverage against the threshold. Coverage is computed on the whole package, including files not exercised by the current test subset.

generic

中文

pytest-cov 的 --cov-fail-under 将总覆盖率与阈值比较。覆盖率基于整个包计算，包括当前测试子集未执行到的文件。

Workarounds

  1. 85% success 
    Scope coverage to changed files in CI:

pytest --cov=app --cov-fail-under=80 --cov-report=term-missing
  2. 90% success 
    Use diff-cover to enforce coverage only on new lines:

diff-cover coverage.xml --compare-branch=origin/main --fail-under=80

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Excludes real code from coverage and hides untested paths rather than testing them.

  2. 90% fail

    Disables the gate entirely and lets coverage regress silently.