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https://issues.apache.org/jira/browse/MRUNIT-77?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226782#comment-13226782
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Brock Noland commented on MRUNIT-77:
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This is great work! Thank you for fixing my bugs!
> cannot use serializations that do not clone into object, or serializations
> without no arg constructors with reduce driver
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: MRUNIT-77
> URL: https://issues.apache.org/jira/browse/MRUNIT-77
> Project: MRUnit
> Issue Type: Bug
> Affects Versions: 0.8.1
> Reporter: Jim Donofrio
> Assignee: Jim Donofrio
> Fix For: 1.0.0
>
>
> @Test
> public void testJavaSerialization() {
> ReduceDriver<Integer, Integer, Integer, Integer> driver =
> ReduceDriver.newReduceDriver(new IdentityReducer<Integer, Integer>());
> Configuration conf = new Configuration();
> conf.set("io.serializations",
> "org.apache.hadoop.io.serializer.JavaSerialization");
> driver.setConfiguration(conf);
> driver.withInputKey(1)
> .withInputValue(2)
> .withInputValue(3)
> .withInputValue(4)
> .withOutput(1, 2)
> .withOutput(1, 3)
> .withOutput(1, 4)
> .runTest();
> }
> The above test fails because the result of copy(next, value, conf) needs to
> be reassigned to value for serializations such as java serialization that
> dont change the copy argument. This also fails because of the lack of a no
> arg constructor which breaks the call to ReflectionUtils.newInstance(klass,
> conf)
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