Nadav Har'El a7bf36831c test: remove spammy deprecation warnings ...

Recently, when running Alternator tests we get hundreds of warnings like
the following from basically all test files:

    /usr/lib/python3.12/site-packages/botocore/crt/auth.py:59:
    DeprecationWarning: datetime.datetime.utcnow() is deprecated and
    scheduled for removal in a future version. Use timezone-aware objects
    to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

    /usr/local/lib/python3.12/site-packages/pytest_elk_reporter.py:299:
    DeprecationWarning: datetime.datetime.utcnow() is deprecated and
    scheduled for removal in a future version. Use timezone-aware objects
    to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

These warnings all come from two libraries that we use in the tests -
botocore is used by Alternator tests, and elk reporter is a plugin that
we don't actually use, but it is installed by dtest and we often see
it in our runs as well. These warnings have zero interest to us - not
only do we not care if botocore uses some deprecated Python APIs and
will need to be updated in the future, all these warnings are hiding
*real* warnings about deprecated things we actually use in our own
test code.

The patch modifies test/pytest.ini (used by all our Python tests,
including but not limited to Alternator tests) to ignore deprecation
warnings from *inside* these two libraries, botocore and elk_reporter.

After this patch, test/alternator/run finishes without any warnings
at all. test/cqlpy does still have a few warnings left, which earlier
were hidden by the thousands of spammy warning eliminated in this patch.

We fix one of these warnings in this patch:

    ResultSet indexing support will be removed in 4.0.
    Consider using ResultSet.one()

by doing exactly what the warning recommended.

Some deprecation warnings in test/cqlpy remain in calls to
get_query_trace(). The "blame" for these warning is misplaced - this
function is part of the cassandra driver, but Python seems to think it's
part of our test code so I can't avoid them with the pytest.ini trick,
I'm not sure why. So I don't know yet how to eliminate these last warnings.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>

Closes scylladb/scylladb#22881

2025-02-19 12:15:51 +03:00

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