| /* |
| * 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.assertNull; |
| |
| import java.util.Map; |
| import java.util.Random; |
| |
| import org.apache.pig.backend.executionengine.ExecException; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.Result; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression; |
| import org.apache.pig.data.DataBag; |
| import org.apache.pig.data.DataByteArray; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.test.utils.GenPhyOp; |
| import org.apache.pig.test.utils.GenRandomData; |
| import org.junit.Test; |
| |
| public class TestConstExpr { |
| Random r = new Random(42L); |
| ConstantExpression ce = (ConstantExpression)GenPhyOp.exprConst(); |
| |
| @Test |
| public void testGetNextInteger() throws ExecException { |
| Integer inp = r.nextInt(); |
| ce.setValue(inp); |
| Result resi = ce.getNextInteger(); |
| Integer ret = (Integer)resi.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resi = ce.getNextInteger(); |
| ret = (Integer)resi.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextLong() throws ExecException { |
| Long inp = r.nextLong(); |
| ce.setValue(inp); |
| Result resl = ce.getNextLong(); |
| Long ret = (Long)resl.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resl = ce.getNextLong(); |
| ret = (Long)resl.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextDouble() throws ExecException { |
| Double inp = r.nextDouble(); |
| ce.setValue(inp); |
| Result resd = ce.getNextDouble(); |
| Double ret = (Double)resd.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resd = ce.getNextDouble(); |
| ret = (Double)resd.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextFloat() throws ExecException { |
| Float inp = r.nextFloat(); |
| ce.setValue(inp); |
| Result resf = ce.getNextFloat(); |
| Float ret = (Float)resf.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resf = ce.getNextFloat(); |
| ret = (Float)resf.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextString() throws ExecException { |
| String inp = GenRandomData.genRandString(r); |
| ce.setValue(inp); |
| Result ress = ce.getNextString(); |
| String ret = (String)ress.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| ress = ce.getNextString(); |
| ret = (String)ress.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextDataByteArray() throws ExecException { |
| DataByteArray inp = GenRandomData.genRandDBA(r); |
| ce.setValue(inp); |
| Result resba = ce.getNextDataByteArray(); |
| DataByteArray ret = (DataByteArray)resba.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resba = ce.getNextDataByteArray(); |
| ret = (DataByteArray)resba.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextMap() throws ExecException { |
| Map<String, Object> inp = GenRandomData.genRandMap(r, 10); |
| ce.setValue(inp); |
| Result resm = ce.getNextMap(); |
| Map<Integer, String> ret = (Map)resm.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| resm = ce.getNextMap(); |
| ret = (Map)resm.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextBoolean() throws ExecException { |
| Boolean inp = r.nextBoolean(); |
| ce.setValue(inp); |
| Result res = ce.getNextBoolean(); |
| Boolean ret = (Boolean)res.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| res = ce.getNextBoolean(); |
| ret = (Boolean)res.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextTuple() throws ExecException { |
| Tuple inp = GenRandomData.genRandSmallBagTuple(r, 10, 100); |
| ce.setValue(inp); |
| Result rest = ce.getNextTuple(); |
| Tuple ret = (Tuple)rest.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| rest = ce.getNextTuple(); |
| ret = (Tuple)rest.result; |
| assertNull(ret); |
| } |
| |
| @Test |
| public void testGetNextDataBag() throws ExecException { |
| DataBag inp = GenRandomData.genRandSmallTupDataBag(r, 10, 100); |
| ce.setValue(inp); |
| Result res = ce.getNextDataBag(); |
| DataBag ret = (DataBag)res.result; |
| assertEquals(inp, ret); |
| |
| // test with null input |
| ce.setValue(null); |
| res = ce.getNextDataBag(); |
| ret = (DataBag)res.result; |
| assertNull(ret); |
| } |
| |
| } |