Volodymyr Vysotskyi created DRILL-6920:
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Summary: Fix TestClient.testBasics() yarn test failure
Key: DRILL-6920
URL: https://issues.apache.org/jira/browse/DRILL-6920
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.15.0
Reporter: Volodymyr Vysotskyi
Assignee: Volodymyr Vysotskyi
Fix For: 1.15.0
{{TestClient.testBasics()}} test checks error messages for the case of usage
non-existent commands. But it contains block for help command which exists in
yarn and supported by Drill (see {{CommandLineOptions.Command}} enum).
This test shares the same {{TestContext}} instance for all the tests, but for
some envs, {{TestContext.getOut()}} may return the result of the execution of
previous block. So for some systems this test passes and for other may fail.
The solution is to add {{TestContext.resetOutput()}} calls for every test block
and remove block with {{help}} command since it contradicts test javadoc.
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