| /* |
| * 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.flink.util; |
| |
| import org.apache.flink.core.testutils.CommonTestUtils; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * This class contains tests for the {@link org.apache.flink.util.AbstractID} class. |
| */ |
| public class AbstractIDTest extends TestLogger { |
| |
| /** |
| * Tests the serialization/deserialization of an abstract ID. |
| */ |
| @Test |
| public void testSerialization() throws Exception { |
| final AbstractID origID = new AbstractID(); |
| final AbstractID copyID = CommonTestUtils.createCopySerializable(origID); |
| |
| assertEquals(origID.hashCode(), copyID.hashCode()); |
| assertEquals(origID, copyID); |
| } |
| |
| @Test |
| public void testConvertToBytes() throws Exception { |
| final AbstractID origID = new AbstractID(); |
| |
| AbstractID copy1 = new AbstractID(origID); |
| AbstractID copy2 = new AbstractID(origID.getBytes()); |
| AbstractID copy3 = new AbstractID(origID.getLowerPart(), origID.getUpperPart()); |
| |
| assertEquals(origID, copy1); |
| assertEquals(origID, copy2); |
| assertEquals(origID, copy3); |
| } |
| |
| @Test |
| public void testCompare() throws Exception { |
| AbstractID id1 = new AbstractID(0, 0); |
| AbstractID id2 = new AbstractID(1, 0); |
| AbstractID id3 = new AbstractID(0, 1); |
| AbstractID id4 = new AbstractID(-1, 0); |
| AbstractID id5 = new AbstractID(0, -1); |
| AbstractID id6 = new AbstractID(-1, -1); |
| |
| AbstractID id7 = new AbstractID(Long.MAX_VALUE, Long.MAX_VALUE); |
| AbstractID id8 = new AbstractID(Long.MIN_VALUE, Long.MIN_VALUE); |
| AbstractID id9 = new AbstractID(Long.MAX_VALUE, Long.MIN_VALUE); |
| AbstractID id10 = new AbstractID(Long.MIN_VALUE, Long.MAX_VALUE); |
| |
| // test self equality |
| assertEquals(0, id1.compareTo(CommonTestUtils.createCopySerializable(id1))); |
| assertEquals(0, id2.compareTo(CommonTestUtils.createCopySerializable(id2))); |
| assertEquals(0, id3.compareTo(CommonTestUtils.createCopySerializable(id3))); |
| assertEquals(0, id4.compareTo(CommonTestUtils.createCopySerializable(id4))); |
| assertEquals(0, id5.compareTo(CommonTestUtils.createCopySerializable(id5))); |
| assertEquals(0, id6.compareTo(CommonTestUtils.createCopySerializable(id6))); |
| assertEquals(0, id7.compareTo(CommonTestUtils.createCopySerializable(id7))); |
| assertEquals(0, id8.compareTo(CommonTestUtils.createCopySerializable(id8))); |
| assertEquals(0, id9.compareTo(CommonTestUtils.createCopySerializable(id9))); |
| assertEquals(0, id10.compareTo(CommonTestUtils.createCopySerializable(id10))); |
| |
| // test order |
| assertCompare(id1, id2, -1); |
| assertCompare(id1, id3, -1); |
| assertCompare(id1, id4, 1); |
| assertCompare(id1, id5, 1); |
| assertCompare(id1, id6, 1); |
| assertCompare(id2, id5, 1); |
| assertCompare(id3, id5, 1); |
| assertCompare(id2, id6, 1); |
| assertCompare(id3, id6, 1); |
| assertCompare(id1, id7, -1); |
| assertCompare(id1, id8, 1); |
| assertCompare(id7, id8, 1); |
| assertCompare(id9, id10, -1); |
| assertCompare(id7, id9, 1); |
| assertCompare(id7, id10, 1); |
| assertCompare(id8, id9, -1); |
| assertCompare(id8, id10, -1); |
| } |
| |
| private static void assertCompare(AbstractID a, AbstractID b, int signum) { |
| int cmpAB = a.compareTo(b); |
| int cmpBA = b.compareTo(a); |
| |
| int sgnAB = cmpAB > 0 ? 1 : (cmpAB < 0 ? -1 : 0); |
| int sgnBA = cmpBA > 0 ? 1 : (cmpBA < 0 ? -1 : 0); |
| |
| assertEquals(signum, sgnAB); |
| assertTrue(sgnAB == -sgnBA); |
| } |
| } |