[FLINK-5269] Convert string-based Table API tests into unit tests

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.2.0
• Component/s: Table SQL / API
• Assignee: Unassigned
• Reporter: Fabian Hueske
• Created: 07/Dec/16 10:33
• Updated: 09/Dec/16 11:44
• Resolved: 09/Dec/16 11:44

Description

The string-based Table API is currently tested with expensive integration tests. These tests have a huge overlap with the tests of the Scala-expression Table API. Therefore these tests should be converted into unit tests that compare the logical plan constructed by the string-based Table API with the logical plan of an equivalent Scala-expression Table API query.

The logical plan can be retrieved from a Table as Table.logicalPlan.
Since the translation from string-based Table API to logical plan does not distinguish between batch and streaming, we do not need separate tests but can remove existing duplicate tests.