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From "Brock Noland (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MRUNIT-12) Support MultipleOutputs test, load dataset from text,and some usefull annotation
Date Sat, 07 Jan 2012 19:21:41 GMT

     [ https://issues.apache.org/jira/browse/MRUNIT-12?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brock Noland updated MRUNIT-12:
-------------------------------

    Fix Version/s:     (was: 0.8.0)
                   1.0.0
    
> Support MultipleOutputs test, load dataset from text,and some usefull annotation
> --------------------------------------------------------------------------------
>
>                 Key: MRUNIT-12
>                 URL: https://issues.apache.org/jira/browse/MRUNIT-12
>             Project: MRUnit
>          Issue Type: New Feature
>    Affects Versions: 0.5.0
>            Reporter: JenWang
>            Assignee: E. Sammer
>             Fix For: 1.0.0
>
>         Attachments: mrunit_enhance.zip, mrunit_enhance2.zip
>
>
> Some time we need to test reduce/mapreduce which used MultipleOutputs to output,mrunit
not support this yet.so, I writed some code support this; 
> improvement which make mrunit nicer to use:load test dataset from text and some usefull
annotation
> example:
> public void testReduce () {
>   List<TimeInfo> values = new ArrayList<TimeInfo>();
>   values.add(new TimeInfo(1, 3));
>   values.add(new TimeInfo(2, 5));
>   values.add(new TimeInfo(3, 7));
>   reduceDriver.withReducer(reducer)
>           .withInput(new Text("444"), values)
>           . withMutiOutput ("somePrefix"+444%8,new Text("444"),new LongWritable(2))
>           .runTest();
> }
>  
> load test data from text and use annotation:
>  
> @RunWith(MRUnitJunit4TestClassRunner.class)
> public class XXXMRUseAnnotationTest {
>   @MapInputSet
>   @MapReduce(mapper = Map.class, reducer = Reduce.class)
>   private MapReduceDriver<LongWritable, Text, Text, TimeInfo, Text, LongWritable>
mrDriver;
>   @Test
>   @MapInputSet("ConsignTimeMRUseAnnotationTest.txt")
>   public void testMapReduce_3record_1user() {
>        mrDriver. withMutiOutput ("somePrefix"+444%8,new Text("444"),new LongWritable(2))
>                     .runTest();
>    }
> }

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