| /* |
| * 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.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Random; |
| |
| import org.apache.pig.backend.executionengine.ExecException; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.POStatus; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.Result; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.PORegexp; |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.impl.plan.OperatorKey; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestRegexp { |
| |
| Random r = new Random(); |
| ConstantExpression lt, rt; |
| BinaryComparisonOperator op; |
| |
| @Before |
| public void setUp() throws Exception { |
| lt = new ConstantExpression(new OperatorKey("", r.nextLong())); |
| lt.setResultType(DataType.CHARARRAY); |
| rt = new ConstantExpression(new OperatorKey("", r.nextLong())); |
| rt.setResultType(DataType.CHARARRAY); |
| op = new PORegexp(new OperatorKey("", r.nextLong())); |
| op.setLhs(lt); |
| op.setRhs(rt); |
| op.setOperandType(DataType.CHARARRAY); |
| } |
| |
| @Test |
| public void testMatches() throws ExecException { |
| lt.setValue(new String( |
| "The quick sly fox jumped over the lazy brown dog")); |
| rt.setValue(".*s.y.*"); |
| Result res = op.getNextBoolean(); |
| assertEquals(POStatus.STATUS_OK, res.returnStatus); |
| assertTrue((Boolean)res.result); |
| |
| // test with null in lhs |
| lt.setValue(null); |
| rt.setValue(".*s.y.*"); |
| res = op.getNextBoolean(); |
| assertNull(res.result); |
| |
| // test with null in rhs |
| lt.setValue(new String( |
| "The quick sly fox jumped over the lazy brown dog")); |
| rt.setValue(null); |
| res = op.getNextBoolean(); |
| assertNull(res.result); |
| } |
| |
| @Test |
| public void testDoesntMatch() throws ExecException { |
| lt.setValue(new String( |
| "The quick sly fox jumped over the lazy brown dog")); |
| rt.setValue(new String("zzz")); |
| Result res = op.getNextBoolean(); |
| assertEquals(POStatus.STATUS_OK, res.returnStatus); |
| assertFalse((Boolean)res.result); |
| } |
| } |