fix(ci): Add CODEOWNERS fastpath to selective testing#109163
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fix(ci): Add CODEOWNERS fastpath to selective testing#109163
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CODEOWNERS changes were triggering a full backend test suite because the file doesn't appear in coverage data. Map it directly to its only known test dependency (tests/sentry/api/test_api_owners.py) so selective testing runs just that one test instead of ~22 shards.
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Scope: Backend
rbro112
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Feb 24, 2026
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Summary
.github/CODEOWNERSis listed infile-filters.ymlas abackend_srctrigger becausetests/sentry/api/test_api_owners.pyvalidates it. However, since CODEOWNERS isn't a Python source file, it never appears in coverage data — so selective testing can't find any matching tests and falls back to running the entire backend suite (~22 shards).This adds an
EXTRA_FILE_TO_TEST_MAPPINGdict that maps non-source files to their known test dependencies. When a mapped file is changed, its associated tests are added directly to the selected set, avoiding the full suite fallback.Currently maps:
.github/CODEOWNERS→tests/sentry/api/test_api_owners.pyThe mapping is extensible for any other non-source files with known test dependencies in the future.