| /* |
| * 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.builtin; |
| |
| import org.apache.pig.PigServer; |
| import org.apache.pig.builtin.mock.Storage; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.test.Util; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.util.List; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.apache.pig.builtin.mock.Storage.map; |
| import static org.apache.pig.builtin.mock.Storage.tuple; |
| import static org.apache.pig.builtin.mock.Storage.resetData; |
| |
| public class TestTOMAP { |
| |
| static PigServer pigServer; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| pigServer = new PigServer(Util.getLocalTestMode()); |
| } |
| |
| @Test |
| public void testTOMAP_Tuple() throws Exception { |
| Storage.Data data = resetData(pigServer); |
| |
| data.set("foo", |
| tuple("a", "b", "c", "d") |
| ); |
| |
| pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage() as (a0:chararray, a1:chararray, a2:chararray, a3:chararray);"); |
| pigServer.registerQuery("B = FOREACH A GENERATE TOMAP($0, $1, $2, $3);"); |
| pigServer.registerQuery("STORE B INTO 'bar' USING mock.Storage();"); |
| assertEquals(pigServer.dumpSchema("B").toString(), "{map[chararray]}"); |
| |
| List<Tuple> out = data.get("bar"); |
| assertEquals(tuple(map("c", "d", "a", "b")), out.get(0)); |
| } |
| |
| @Test |
| public void testTOMAP_Bad_Tuple() throws Exception { |
| Storage.Data data = resetData(pigServer); |
| |
| data.set("foo", |
| tuple("a", "b", "c") |
| ); |
| |
| pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage();"); |
| pigServer.registerQuery("B = FOREACH A GENERATE TOMAP($0, $1, $2);"); |
| pigServer.registerQuery("STORE B INTO 'bar' USING mock.Storage();"); |
| |
| List<Tuple> out = data.get("bar"); |
| assertEquals(0, out.size()); // Error should occur --> no results |
| } |
| |
| @Test |
| public void testTOMAP_BagOfPairs() throws Exception { |
| Storage.Data data = resetData(pigServer); |
| |
| data.set("foo", |
| tuple("a", "b"), |
| tuple("c", "d") |
| ); |
| |
| pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage() as (a0:chararray, a1:chararray);"); |
| pigServer.registerQuery("B = GROUP A ALL;"); |
| pigServer.registerQuery("C = FOREACH B GENERATE TOMAP(A);"); |
| pigServer.registerQuery("STORE C INTO 'bar' USING mock.Storage();"); |
| assertEquals(pigServer.dumpSchema("C").toString(), "{map[chararray]}"); |
| |
| List<Tuple> out = data.get("bar"); |
| assertEquals(tuple(map("a", "b", "c", "d")), out.get(0)); |
| } |
| |
| @Test |
| public void testTOMAP_Bad_BagOfPairs() throws Exception { |
| Storage.Data data = resetData(pigServer); |
| |
| data.set("foo", |
| tuple("a", "b"), |
| tuple("c") |
| ); |
| |
| pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage();"); |
| pigServer.registerQuery("B = GROUP A ALL;"); |
| pigServer.registerQuery("C = FOREACH B GENERATE TOMAP(A);"); |
| pigServer.registerQuery("STORE C INTO 'bar' USING mock.Storage();"); |
| |
| List<Tuple> out = data.get("bar"); |
| assertEquals(0, out.size()); // Error should occur --> no results |
| } |
| |
| } |