[jira] [Created] (FLINK-5272) Refactor the stream Scala-expression Table API tests

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-5272:
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             Summary: Refactor the stream Scala-expression Table API tests
                 Key: FLINK-5272
                 URL: https://issues.apache.org/jira/browse/FLINK-5272
             Project: Flink
          Issue Type: Sub-task
          Components: Table API & SQL
    Affects Versions: 1.2.0
            Reporter: Fabian Hueske


Most tests of the streaming Scala Table API tests are full-blown integration tests which are rather expensive to execute.

Most of tests should be converted into unit tests that validate the resulting execution plan (consisting of {{DataStreamRel}} nodes) based on the {{TableTestBase}} class.

In addition we need a few integration tests that check the translation from the optimized {{DataStreamRel}} plan to a DataStream program. These tests should be implemented by extending the {{StreamingMultipleProgramsTestBase}} and be located in few classes to avoid repeated instantiations of the FLink MiniCluster.

These tests must cover the translation process of each {{DataStreamRel}} operator.



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