| /* |
| * 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.piggybank.test.evaluation.string; |
| |
| import java.io.IOException; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.piggybank.evaluation.string.RegexExtract; |
| import org.apache.pig.piggybank.evaluation.string.RegexExtractAll; |
| import org.apache.pig.piggybank.evaluation.string.RegexMatch; |
| import org.junit.Test; |
| |
| public class TestRegex extends TestCase { |
| @Test |
| public void testRegexMatch() throws Exception { |
| Tuple t1 = TupleFactory.getInstance().newTuple(2); |
| t1.set(0, "/search/iy/xxx"); |
| t1.set(1, "^\\/search\\/iy\\/.*"); |
| |
| Tuple t2 = TupleFactory.getInstance().newTuple(2); |
| t2.set(0, "http://yahoo.com"); |
| t2.set(1, "^\\/search\\/iy\\/.*"); |
| |
| Tuple t3 = TupleFactory.getInstance().newTuple(2); |
| t3.set(0, null); |
| t3.set(1, "^\\/search\\/iy\\/.*"); |
| |
| RegexMatch func = new RegexMatch(); |
| Integer r = func.exec(t1); |
| assertTrue(r==1); |
| r = func.exec(t2); |
| assertTrue(r==0); |
| r = func.exec(t3); |
| assertTrue(r==null); |
| } |
| @Test |
| public void testRegexExtract() throws Exception { |
| Tuple t1 = TupleFactory.getInstance().newTuple(3); |
| t1.set(0, "/search/iy/term1/test"); |
| t1.set(1, "^\\/search\\/iy\\/(.*?)\\/.*"); |
| t1.set(2, 1); |
| |
| Tuple t2 = TupleFactory.getInstance().newTuple(3); |
| t2.set(0, "/search/iy/term1/test"); |
| t2.set(1, "^\\/search\\/iy\\/(.*?)\\/.*"); |
| t2.set(2, 2); |
| |
| Tuple t3 = TupleFactory.getInstance().newTuple(3); |
| t3.set(0, null); |
| t3.set(1, "^\\/search\\/iy\\/(.*?)\\/.*"); |
| t3.set(2, 2); |
| |
| |
| RegexExtract func = new RegexExtract(); |
| String r = func.exec(t1); |
| assertTrue(r.equals("term1")); |
| r = func.exec(t2); |
| assertTrue(r==null); |
| r = func.exec(t3); |
| assertTrue(r==null); |
| } |
| |
| @Test |
| public void testRegexExtractAll() throws IOException { |
| String matchRegex = "^(.+)\\b\\s+is a\\s+\\b(.+)$"; |
| TupleFactory tupleFactory = TupleFactory.getInstance(); |
| Tuple t1 = tupleFactory.newTuple(2); |
| t1.set(0,"this is a match"); |
| t1.set(1, matchRegex); |
| |
| Tuple t2 = tupleFactory.newTuple(2); |
| t2.set(0, "no match"); |
| t2.set(1, matchRegex); |
| |
| Tuple t3 = tupleFactory.newTuple(2); |
| t3.set(0, null); |
| t3.set(1, matchRegex); |
| |
| RegexExtractAll func = new RegexExtractAll(); |
| Tuple r = func.exec(t1); |
| assertEquals(r.size(), 2); |
| assertEquals("this", r.get(0)); |
| assertEquals("match", r.get(1)); |
| |
| r = func.exec(t2); |
| assertTrue(r==null); |
| |
| r = func.exec(t3); |
| assertTrue(r==null); |
| } |
| } |