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Use pytest to manage background services, paths, and environment variables. Benefits: - Tests are a little easier to write. - Cleanup is more reliable. You can CTRL-C a test and it will still shut down gracefully. If you manually start a conflicting process, the test fixtures will detect this and abort at startup. - Don't need to worry about remembering '--test-threads=1' - Output of sub-processes can be captured to files. - Test fixtures configure everything to operate under a single test output directory, making it easier to capture logs in CI. - Detects all the necessary paths if run from the git root, but can also run from arbitrary paths by setting environment variables. There is also a deliberately broken test (test_broken.py) that can be used to test whether the test fixtures properly clean up after themselves. It won't run by default; the comment at the top explains how to enable it.
35 lines
807 B
Python
35 lines
807 B
Python
import pytest
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import os
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pytest_plugins = ("fixtures.zenith_fixtures")
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"""
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Use this test to see what happens when tests fail.
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We should be able to clean up after ourselves, including stopping any
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postgres or pageserver processes.
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Set the environment variable RUN_BROKEN to see this test run (and fail,
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and hopefully not leave any server processes behind).
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"""
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run_broken = pytest.mark.skipif(
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os.environ.get('RUN_BROKEN') == None,
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reason="only used for testing the fixtures"
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)
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@run_broken
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def test_broken(zenith_cli, pageserver, postgres, pg_bin):
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zenith_cli.run_init()
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pageserver.start()
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print('pageserver is running')
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postgres.create_start()
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print('postgres is running')
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print('THIS NEXT COMMAND WILL FAIL:')
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pg_bin.run('pgbench -i_am_a_broken_test'.split())
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