Convenience mock Loader and Storer to simplify unit testing of Pig scripts
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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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