vinoyang created FLINK-15535:
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Summary: Add usage of ProcessFunctionTestHarnesses for testing
documentation
Key: FLINK-15535
URL: https://issues.apache.org/jira/browse/FLINK-15535
Project: Flink
Issue Type: Wish
Components: Documentation
Reporter: vinoyang
Recently, we added {{ProcessFunctionTestHarness}} for testing
{{ProcessFunction}}. However, except {{ProcessFunctionTestHarnessesTest}} I can
not find anything about this test harness in the master codebase.
Considering {{ProcessFunction}} is the very important and frenquency-used UDF.
I suggest that we could add a test example in the [testing
documentation|https://ci.apache.org/projects/flink/flink-docs-stable/dev/stream/testing.html#integration-testing].
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