/*
* 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);
}
}