/*
* 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 org.apache.pig.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.Set;
import org.apache.pig.builtin.RollupDimensions;
import org.apache.pig.data.DataBag;
import org.apache.pig.data.Tuple;
import org.apache.pig.data.TupleFactory;
import org.junit.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
public class TestRollupDimensions {
private static TupleFactory TF = TupleFactory.getInstance();
@Test
public void testCube() throws IOException {
Tuple t = TF.newTuple(ImmutableList.of("a", "b", "c"));
Set<Tuple> expected = ImmutableSet.of(
TF.newTuple(ImmutableList.of("a", "b", "c")),
TF.newTuple(ImmutableList.of("a", "b", "NULL")),
TF.newTuple(ImmutableList.of("a", "NULL", "NULL")),
TF.newTuple(ImmutableList.of("NULL", "NULL", "NULL"))
);
RollupDimensions rd = new RollupDimensions("NULL");
DataBag bag = rd.exec(t);
assertEquals(bag.size(), expected.size());
for (Tuple tup : bag) {
assertTrue(expected.contains(tup));
}
}
}