/*
* Cloud9: A Hadoop toolkit for working with big data
*
* Licensed 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 edu.umd.cloud9.io.pair;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import junit.framework.JUnit4TestAdapter;
import org.apache.hadoop.io.WritableComparator;
import org.junit.Test;
import edu.umd.cloud9.debug.WritableComparatorTestHarness;
import edu.umd.cloud9.io.pair.PairOfIntString;
public class PairOfIntStringTest {
@Test
public void testBasic() throws IOException {
PairOfIntString pair = new PairOfIntString(1, "2");
assertEquals(1, pair.getLeftElement());
assertEquals("2", pair.getRightElement());
}
@Test
public void testSerialize() throws IOException {
PairOfIntString origPair = new PairOfIntString(1, "2");
ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
DataOutputStream dataOut = new DataOutputStream(bytesOut);
origPair.write(dataOut);
PairOfIntString pair = new PairOfIntString();
pair.readFields(new DataInputStream(new ByteArrayInputStream(bytesOut.toByteArray())));
assertEquals(1, pair.getLeftElement());
assertEquals("2", pair.getRightElement());
}
@Test
public void testComparison1() throws IOException {
PairOfIntString pair1 = new PairOfIntString(1, "2");
PairOfIntString pair2 = new PairOfIntString(1, "2");
PairOfIntString pair3 = new PairOfIntString(1, "1");
PairOfIntString pair4 = new PairOfIntString(0, "9");
PairOfIntString pair5 = new PairOfIntString(9, "0");
assertTrue(pair1.equals(pair2));
assertFalse(pair1.equals(pair3));
assertTrue(pair1.compareTo(pair2) == 0);
assertTrue(pair1.compareTo(pair3) > 0);
assertTrue(pair1.compareTo(pair4) > 0);
assertTrue(pair1.compareTo(pair5) < 0);
assertTrue(pair3.compareTo(pair4) > 0);
assertTrue(pair4.compareTo(pair5) < 0);
}
@Test
public void testComparison2() throws IOException {
WritableComparator comparator = new PairOfIntString.Comparator();
PairOfIntString pair1 = new PairOfIntString(1, "2");
PairOfIntString pair2 = new PairOfIntString(1, "2");
PairOfIntString pair3 = new PairOfIntString(1, "1");
PairOfIntString pair4 = new PairOfIntString(0, "9");
PairOfIntString pair5 = new PairOfIntString(9, "0");
assertTrue(WritableComparatorTestHarness.compare(comparator, pair1, pair2) == 0);
assertTrue(WritableComparatorTestHarness.compare(comparator, pair1, pair3) > 0);
assertTrue(WritableComparatorTestHarness.compare(comparator, pair1, pair4) > 0);
assertTrue(WritableComparatorTestHarness.compare(comparator, pair1, pair5) < 0);
assertTrue(WritableComparatorTestHarness.compare(comparator, pair3, pair4) > 0);
assertTrue(WritableComparatorTestHarness.compare(comparator, pair4, pair5) < 0);
}
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(PairOfIntStringTest.class);
}
}