| /* |
| * 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 org.apache.hadoop.conf.Configuration; |
| import org.apache.pig.data.DataBag; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.PigImplConstants; |
| import org.apache.pig.impl.builtin.GFCross; |
| import org.apache.pig.impl.util.UDFContext; |
| import org.junit.Test; |
| |
| public class TestGFCross { |
| |
| // Test GFCross returns the correct number of default |
| // join groups |
| @Test |
| public void testDefault() throws Exception { |
| UDFContext.getUDFContext().addJobConf(null); |
| Tuple t = TupleFactory.getInstance().newTuple(2); |
| |
| t.set(0, 2); |
| t.set(1, 0); |
| |
| GFCross cross = new GFCross("1"); |
| DataBag bag = cross.exec(t); |
| assertEquals(10, bag.size()); |
| } |
| |
| // Test GFCross handles the parallel 1 case. |
| @Test |
| public void testSerial() throws Exception { |
| Configuration cfg = new Configuration(); |
| cfg.set(PigImplConstants.PIG_CROSS_PARALLELISM + ".1", "1"); |
| UDFContext.getUDFContext().addJobConf(cfg); |
| Tuple t = TupleFactory.getInstance().newTuple(2); |
| |
| t.set(0, 2); |
| t.set(1, 0); |
| |
| GFCross cross = new GFCross("1"); |
| DataBag bag = cross.exec(t); |
| assertEquals(1, bag.size()); |
| } |
| |
| // Test GFCross handles a different parallel case. |
| @Test |
| public void testParallelSet() throws Exception { |
| Configuration cfg = new Configuration(); |
| cfg.set(PigImplConstants.PIG_CROSS_PARALLELISM + ".1", "10"); |
| UDFContext.getUDFContext().addJobConf(cfg); |
| Tuple t = TupleFactory.getInstance().newTuple(2); |
| |
| t.set(0, 2); |
| t.set(1, 0); |
| |
| GFCross cross = new GFCross("1"); |
| DataBag bag = cross.exec(t); |
| assertEquals(4, bag.size()); |
| } |
| } |