[jira] [Created] (FLINK-15535) Add usage of ProcessFunctionTestHarnesses for testing documentation

[Shang Yuanchun (Jira)]

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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