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Treat SA cartesian products as warnings under test #16529

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Merged
merged 1 commit into from
Aug 20, 2024

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@twm twm commented Aug 20, 2024

This is a commonly-hit SQLAlchemy footgun, but one easily remedied
by treating the warning SQLALchemy raises as an error under pytest.

I verified this by running against commit 8a5ad08, which produced
these failures:

FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar/readme.md-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "release_urls" and FROM element "releases".  A...
FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://google.com-False] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "release_urls" and FROM element "releases".  A...
FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo-False] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_publisher_verifies_existing_release_url - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar/-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...

Results (84.29s (0:01:24)):
    4209 passed
       6 failed
         - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar/readme.md-True]
         - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://google.com-False]
         - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar-True]
         - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo-False]
         - tests/unit/forklift/test_legacy.py:3911 TestFileUpload.test_new_publisher_verifies_existing_release_url
         - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar/-True]

On 9de75b8 the build is clean.

This is a commonly-hit SQLAlchemy footgun, but one easily remedied
by treating the warning SQLALchemy raises as an error under pytest.

I verified this by running against commit 8a5ad08, which produced
these failures:

  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar/readme.md-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "release_urls" and FROM element "releases".  A...
  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://google.com-False] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "release_urls" and FROM element "releases".  A...
  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo-False] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_publisher_verifies_existing_release_url - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...
  FAILED tests/unit/forklift/test_legacy.py::TestFileUpload::test_new_release_url_verified[https://github.com/foo/bar/-True] - sqlalchemy.exc.SAWarning: SELECT statement has a cartesian product between FROM element(s) "releases" and FROM element "release_urls".  A...

  Results (84.29s (0:01:24)):
      4209 passed
         6 failed
           - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar/readme.md-True]
           - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://google.com-False]
           - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar-True]
           - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo-False]
           - tests/unit/forklift/test_legacy.py:3911 TestFileUpload.test_new_publisher_verifies_existing_release_url
           - tests/unit/forklift/test_legacy.py:3842 TestFileUpload.test_new_release_url_verified[https://github.com/foo/bar/-True]

On 9de75b8 the build is clean.
@twm twm requested a review from a team as a code owner August 20, 2024 18:32
@miketheman miketheman added the testing Test infrastructure and individual tests label Aug 20, 2024
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Yay, nice work

@di di enabled auto-merge (squash) August 20, 2024 18:36
@di di merged commit aa13cca into pypi:main Aug 20, 2024
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3 participants