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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5084) Replace Java Table API integration tests by unit tests
Date Wed, 21 Dec 2016 15:26:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15767302#comment-15767302
] 

ASF GitHub Bot commented on FLINK-5084:
---------------------------------------

Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2977#discussion_r93440266
  
    --- Diff: flink-libraries/flink-table/src/test/scala/org/apache/flink/api/scala/batch/table/JoinValidationTest.scala
---
    @@ -0,0 +1,197 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + *     http://www.apache.org/licenses/LICENSE-2.0
    + *
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    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +
    +package org.apache.flink.api.scala.batch.table
    +
    +import org.apache.flink.api.scala._
    +import org.apache.flink.api.scala.batch.utils.TableProgramsTestBase
    +import org.apache.flink.api.scala.batch.utils.TableProgramsTestBase.TableConfigMode
    +import org.apache.flink.api.scala.table._
    +import org.apache.flink.api.scala.util.CollectionDataSets
    +import org.apache.flink.api.table.{TableEnvironment, TableException, ValidationException}
    +import org.apache.flink.test.util.MultipleProgramsTestBase.TestExecutionMode
    +import org.junit._
    +import org.junit.runner.RunWith
    +import org.junit.runners.Parameterized
    +
    +@RunWith(classOf[Parameterized])
    +class JoinValidationTest(
    +  mode: TestExecutionMode,
    +  configMode: TableConfigMode)
    +  extends TableProgramsTestBase(mode, configMode) {
    --- End diff --
    
    Do not extend `TableProgramsTestBase`. This is only necessary for ITCases.


> 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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