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Java example source code file (PlatformDependentTest.java)
The PlatformDependentTest.java Java example source code/* * Copyright 2015 The Netty Project * * The Netty Project 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 io.netty.util.internal; import org.junit.Test; import java.util.Random; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotSame; import static org.junit.Assert.assertTrue; public class PlatformDependentTest { private static final Random r = new Random(); @Test public void testEquals() { byte[] bytes1 = {'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd'}; byte[] bytes2 = {'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd'}; assertNotSame(bytes1, bytes2); assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); assertTrue(PlatformDependent.equals(bytes1, 2, bytes2, 2, bytes1.length - 2)); bytes1 = new byte[] {1, 2, 3, 4, 5, 6}; bytes2 = new byte[] {1, 2, 3, 4, 5, 6, 7}; assertNotSame(bytes1, bytes2); assertFalse(PlatformDependent.equals(bytes1, 0, bytes2, 1, bytes1.length)); assertTrue(PlatformDependent.equals(bytes2, 0, bytes1, 0, bytes1.length)); bytes1 = new byte[] {1, 2, 3, 4}; bytes2 = new byte[] {1, 2, 3, 5}; assertFalse(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, 3)); bytes1 = new byte[] {1, 2, 3, 4}; bytes2 = new byte[] {1, 3, 3, 4}; assertFalse(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); assertTrue(PlatformDependent.equals(bytes1, 2, bytes2, 2, bytes1.length - 2)); bytes1 = new byte[0]; bytes2 = new byte[0]; assertNotSame(bytes1, bytes2); assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, 0)); bytes1 = new byte[100]; bytes2 = new byte[100]; for (int i = 0; i < 100; i++) { bytes1[i] = (byte) i; bytes2[i] = (byte) i; } assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); bytes1[50] = 0; assertFalse(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); assertTrue(PlatformDependent.equals(bytes1, 51, bytes2, 51, bytes1.length - 51)); assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, 50)); bytes1 = new byte[]{1, 2, 3, 4, 5}; bytes2 = new byte[]{3, 4, 5}; assertFalse(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes2.length)); assertTrue(PlatformDependent.equals(bytes1, 2, bytes2, 0, bytes2.length)); assertTrue(PlatformDependent.equals(bytes2, 0, bytes1, 2, bytes2.length)); for (int i = 0; i < 1000; ++i) { bytes1 = new byte[i]; r.nextBytes(bytes1); bytes2 = bytes1.clone(); assertTrue(PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length)); } } private static char randomCharInByteRange() { return (char) r.nextInt(255 + 1); } @Test public void testHashCodeAscii() { for (int i = 0; i < 1000; ++i) { // byte[] and char[] need to be initialized such that there values are within valid "ascii" range byte[] bytes = new byte[i]; char[] bytesChar = new char[i]; for (int j = 0; j < bytesChar.length; ++j) { bytesChar[j] = randomCharInByteRange(); bytes[j] = (byte) (bytesChar[j] & 0xff); } String string = new String(bytesChar); assertEquals("length=" + i, PlatformDependent.hashCodeAsciiSafe(bytes, 0, bytes.length), PlatformDependent.hashCodeAscii(bytes, 0, bytes.length)); assertEquals("length=" + i, PlatformDependent.hashCodeAsciiSafe(string), PlatformDependent.hashCodeAscii(string)); assertEquals("length=" + i, PlatformDependent.hashCodeAscii(bytes, 0, bytes.length), PlatformDependent.hashCodeAscii(string)); } } } Other Java examples (source code examples)Here is a short list of links related to this Java PlatformDependentTest.java source code file: |
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