Joris Van den Bossche created ARROW-10558:
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Summary: [Python] Filesystem S3 tests not independent (native s3
influences s3fs)
Key: ARROW-10558
URL: https://issues.apache.org/jira/browse/ARROW-10558
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Joris Van den Bossche
The filesystem tests in {{test_fs.py}} that are parametrized with all the
tested filesystems have some "state" shared between them, at least in the case
of S3.
When first a test is run with our own S3FileSystem, which eg creates a
directory, this directory is still present when we test the s3fs wrapped
filesystem, which causes some tests to pass that would otherwise fail if run in
isolation.
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