Hey everyone! I would like to kick off a discussion on FLIP-567: Introduce a ProcessTableFunction Test Harness[1].
Currently, testing PTFs require full integration tests against a running Flink cluster. This FLIP would introduce a developer-friendly test harness for unit testing PTFs and would provide introspection to output, state, timers, and watermarks for assertions and behaviour validation. This would let developers iterate and test their PTFs without needing to run a fullscale integration test against a live Flink cluster. Would love any thoughts and feedback the community might have on this proposal. Kind regards, Mika Naylor [1] https://cwiki.apache.org/confluence/display/FLINK/FLIP-567%3A+Introduce+a+ProcessTableFunction+Test+Harness
