[bvolpato]

YAML integration fixtures use ExitStack. If a later fixture fails during setup, the exception reaches the BigQuery fixture at yield and skips its dataset deletion. In this run, datasets were created before Bigtable setup failed, and their cleanup was never reached.

Move dataset cleanup into finally after creation, covering both optional table setup and errors from the test or another fixture. The fixture now calls deletion as the stack unwinds, using the existing request to delete the dataset and its contents.

Focused regression cases failed against the original helper because deletion was never called, then passed with the fix. They use the real Beam and BigQuery API modules with mocked cloud clients. Formatting and lint checks passed, including a check that missing optional dependencies skip the tests. No live cloud resources were used.

[codecov]

Codecov Report

❌ Patch coverage is 61.11111% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.08%. Comparing base (0f1ac43) to head (f0f3cea).
⚠️ Report is 16 commits behind head on master.

Files with missing lines	Patch %	Lines
sdks/python/apache_beam/yaml/integration_tests.py	61.11%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #40863       +/-   ##
===========================================
+ Coverage        0   80.08%   +80.08%     
===========================================
  Files           0      494      +494     
  Lines           0    83574    +83574     
===========================================
+ Hits            0    66927    +66927     
- Misses          0    16647    +16647     

Flag	Coverage Δ
python	80.08% <61.11%> (?)

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