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From vrozov <...@git.apache.org>
Subject [GitHub] apex-core pull request #364: APEXCORE-448 Made operator name available in op...
Date Thu, 04 Aug 2016 01:44:45 GMT
Github user vrozov commented on a diff in the pull request:

    https://github.com/apache/apex-core/pull/364#discussion_r73451447
  
    --- Diff: engine/src/test/java/com/datatorrent/stram/engine/OperatorContextTest.java ---
    @@ -0,0 +1,112 @@
    +/**
    + * 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
    + *
    + * Unless required by applicable law or agreed to in writing,
    + * software 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 com.datatorrent.stram.engine;
    +
    +import javax.validation.constraints.NotNull;
    +
    +import org.junit.Assert;
    +import org.junit.Test;
    +
    +import org.apache.hadoop.conf.Configuration;
    +
    +import com.google.common.base.Preconditions;
    +
    +import com.datatorrent.api.Attribute;
    +import com.datatorrent.api.AutoMetric;
    +import com.datatorrent.api.Context;
    +import com.datatorrent.api.DAG;
    +import com.datatorrent.api.DefaultOutputPort;
    +import com.datatorrent.api.InputOperator;
    +import com.datatorrent.api.LocalMode;
    +import com.datatorrent.api.StreamingApplication;
    +import com.datatorrent.common.util.BaseOperator;
    +import com.datatorrent.stram.api.OperatorDeployInfo;
    +
    +public class OperatorContextTest
    +{
    +  private static boolean foundOperatorName;
    +
    +  @Test
    +  public void testInjectionOfOperatorName() throws Exception
    +  {
    +    final LocalMode lma = LocalMode.newInstance();
    +    StreamingApplication testApp = new StreamingApplication()
    +    {
    +      @Override
    +      public void populateDAG(DAG dag, Configuration conf)
    +      {
    +        MockInputOperator input = dag.addOperator("input", new MockInputOperator());
    +        GenericNodeTest.GenericOperator output = dag.addOperator("output", new GenericNodeTest.GenericOperator());
    --- End diff --
    
    @chandnisingh, @ilooner Adding extra code to test case is not a big deal as long as the
test always succeeds and it is not necessary to troubleshoot a failure. Problem with unnecessary
code in the test like aggregate and output operator is that it makes more difficult to understand
the test logic and also introduces possible unrelated to the test case failures. What if bug
is introduced into aggregate logic that affects OperatorContextTest?


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