Stefan Podkowinski created CASSANDRA-14810:
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Summary: Upgrade dtests to pytest-3.8
Key: CASSANDRA-14810
URL: https://issues.apache.org/jira/browse/CASSANDRA-14810
Project: Cassandra
Issue Type: Improvement
Components: Testing
Reporter: Stefan Podkowinski
The [dtest project|https://github.com/apache/cassandra-dtest] uses pytest as
test runner of choice for executing tests on builds.apache.org or CircleCI. The
pytest dependency has recently been upgrade to 3.6, but couldn't be upgrade to
the most recent 3.8 version, due to issues described below.
Before test execution, the {{run_dtests.py}} script will gather a list of all
tests:
{{./run_dtests.py --dtest-print-tests-only}}
Afterwards pytest can be started with any of the output lines as argument. With
pytest-3.8 however, the output format changed and preventing pytest to find the
test:
{{pytest
upgrade_tests/upgrade_supercolumns_test.py::TestSCUpgrade::test_upgrade_super_columns_through_limited_versions}}
vs
{{pytest
upgrade_supercolumns_test.py::TestSCUpgrade::test_upgrade_super_columns_through_limited_versions}}
The underlying issue appears to be the changes in the {{pytest --collect-only}}
output, consumed in {{run_dtests.py}}, which now includes a <Package> element
that needs to be parsed as well to derive at the path as we did before. We'd
have to parse the new output and assemble the correct paths again, so we can
use run_dtests.py as we did before with pytest 3.6.
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