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https://issues.apache.org/jira/browse/PIG-2650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13253366#comment-13253366
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Gianmarco De Francisci Morales commented on PIG-2650:
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Hi, nice idea!
What do you think of adding also something to clean up the static hashmaps that
you use as "filesystem"?
I think it could be good practice to start with a clean state the tests if we
don't want interactions among them (e.g. something actually failed but the
result looks good because it comes from another execution).
> Convenience mock Loader and Storer to simplify unit testing of Pig scripts
> --------------------------------------------------------------------------
>
> Key: PIG-2650
> URL: https://issues.apache.org/jira/browse/PIG-2650
> Project: Pig
> Issue Type: New Feature
> Reporter: Julien Le Dem
> Assignee: Julien Le Dem
> Attachments: PIG-2650.patch
>
>
> A test would look as follows:
> {code}
> TupleFactory tf = TupleFactory.getInstance();
> Loader.setData("foo", Arrays.asList(
> tf.newTuple("a"),
> tf.newTuple("b"),
> tf.newTuple("c")
> ));
> PigServer pigServer = new PigServer(ExecType.LOCAL);
> pigServer.registerQuery("A = LOAD 'foo' USING mock.Loader();");
> // some complex script to test
> pigServer.registerQuery("STORE A INTO 'bar' USING mock.Storer();");
> List<Tuple> data = Storer.getData("bar");
> assertEquals("a", data.get(0).get(0));
> assertEquals("b", data.get(1).get(0));
> assertEquals("c", data.get(2).get(0));
> {code}
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