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https://issues.apache.org/jira/browse/FLINK-5084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15804244#comment-15804244
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ASF GitHub Bot commented on FLINK-5084:
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Github user mtunique commented on the issue:
https://github.com/apache/flink/pull/2977
@fhueske Done. Thanks.
> Replace Java Table API integration tests by unit tests
> ------------------------------------------------------
>
> Key: FLINK-5084
> URL: https://issues.apache.org/jira/browse/FLINK-5084
> Project: Flink
> Issue Type: Task
> Components: Table API & SQL
> Reporter: Fabian Hueske
> Priority: Minor
>
> The Java Table API is a wrapper on top of the Scala Table API.
> Instead of operating directly with Expressions like the Scala API, the Java
> API accepts a String parameter which is parsed into Expressions.
> We could therefore replace the Java Table API ITCases by tests that check
> that the parsing step produces a valid logical plan.
> This could be done by creating two {{Table}} objects for an identical query
> once with the Scala Expression API and one with the Java String API and
> comparing the logical plans of both {{Table}} objects. Basically something
> like the following:
> {code}
> val ds1 = CollectionDataSets.getSmall3TupleDataSet(env).toTable(tEnv, 'a, 'b,
> 'c)
> val ds2 = CollectionDataSets.get5TupleDataSet(env).toTable(tEnv, 'd, 'e, 'f,
> 'g, 'h)
> val joinT1 = ds1.join(ds2).where('b === 'e).select('c, 'g)
> val joinT2 = ds1.join(ds2).where("b = e").select("c, g")
> val lPlan1 = joinT1.logicalPlan
> val lPlan2 = joinT2.logicalPlan
> Assert.assertEquals("Logical Plans do not match", lPlan1, lPlan2)
> {code}
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