| /* |
| * Copyright 2013 Google Inc. |
| * |
| * 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 com.google.gwt.emultest.java.util; |
| |
| import com.google.gwt.junit.DoNotRunWith; |
| import com.google.gwt.junit.Platform; |
| import com.google.gwt.junit.client.GWTTestCase; |
| |
| import java.util.Comparator; |
| import java.util.Objects; |
| |
| /** |
| * Tests {@link Objects}. |
| */ |
| public class ObjectsTest extends GWTTestCase { |
| |
| @Override |
| public String getModuleName() { |
| return "com.google.gwt.emultest.EmulSuite"; |
| } |
| |
| public void testCompare() { |
| Comparator<Integer> intComparator = new Comparator<Integer>() { |
| @SuppressWarnings("NumberEquality") |
| @Override |
| public int compare(Integer a, Integer b) { |
| if (a == b) { |
| fail("comparator must not be called if a == b"); |
| } |
| |
| if (a == null) { |
| return -1; |
| } |
| if (b == null) { |
| return 1; |
| } |
| return a.compareTo(b); |
| } |
| }; |
| |
| assertEquals(0, Objects.compare(null, null, intComparator)); |
| assertEquals(-1, Objects.compare(null, new Integer(12345), intComparator)); |
| assertEquals(1, Objects.compare(new Integer(12345), null, intComparator)); |
| assertEquals(-1, Objects.compare(new Integer(12345), new Integer(12346), intComparator)); |
| assertEquals(1, Objects.compare(new Integer("12345"), new Integer(12344), intComparator)); |
| assertEquals(0, Objects.compare(new Integer("12345"), new Integer(12345), intComparator)); |
| } |
| |
| public void testDeepEquals() { |
| assertTrue(Objects.deepEquals(null, null)); |
| assertFalse(Objects.deepEquals(null, "not null")); |
| assertFalse(Objects.deepEquals("not null", null)); |
| assertTrue(Objects.deepEquals(new Integer("1234"), new Integer(1234))); |
| assertFalse(Objects.deepEquals(new Object(), new Object())); |
| |
| Object obj = new Object(); |
| assertTrue(Objects.deepEquals(obj, obj)); |
| |
| assertFalse(Objects.deepEquals(new int[]{1}, new double[]{1})); |
| assertFalse(Objects.deepEquals(new int[0], new double[0])); |
| assertTrue(Objects.deepEquals((Object) new Object[]{"a"}, (Object) new String[]{"a"})); |
| assertTrue(Objects.deepEquals((Object) new String[]{"a"}, (Object) new Object[]{"a"})); |
| |
| int[] intArray1 = new int[] { 2, 3, 5}; |
| int[] intArray2 = new int[] { 3, 1}; |
| int[] intArray3 = new int[] { 2, 3, 5}; |
| assertFalse(Objects.deepEquals(intArray1, intArray2)); |
| assertFalse(Objects.deepEquals(intArray2, intArray3)); |
| assertTrue(Objects.deepEquals(intArray1, intArray1)); |
| assertTrue(Objects.deepEquals(intArray1, intArray3)); |
| |
| assertTrue(Objects.deepEquals(new int[][]{new int[]{1}}, new int[][]{new int[]{1}})); |
| assertFalse(Objects.deepEquals(new int[][]{new int[]{1}}, new double[][]{new double[]{1}})); |
| } |
| |
| @DoNotRunWith(Platform.Devel) // Objects.equals(String, String) |
| public void testEquals() { |
| assertTrue(Objects.equals(null, null)); |
| assertFalse(Objects.equals(null, "not null")); |
| assertFalse(Objects.equals("not null", null)); |
| assertTrue(Objects.equals("a", "a")); |
| assertFalse(Objects.equals("a", "b")); |
| |
| assertFalse(Objects.equals(new Object(), new Object())); |
| |
| Object obj = new Object(); |
| assertTrue(Objects.equals(obj, obj)); |
| } |
| |
| public void testHashCode() { |
| assertEquals(0, Objects.hashCode(null)); |
| Object obj = new Object(); |
| assertEquals(obj.hashCode(), Objects.hashCode(obj)); |
| } |
| } |