| /* |
| * Copyright 2017 HugeGraph Authors |
| * |
| * 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 com.baidu.hugegraph.unit.util; |
| |
| import org.junit.Test; |
| |
| import com.baidu.hugegraph.testutil.Assert; |
| import com.baidu.hugegraph.unit.BaseUnitTest; |
| import com.baidu.hugegraph.util.Bytes; |
| import com.baidu.hugegraph.util.HashUtil; |
| |
| public class HashUtilTest extends BaseUnitTest { |
| |
| @Test |
| public void testHash() { |
| // hash 32 bits (4 bytes) |
| |
| String h = HashUtil.hash(""); |
| Assert.assertEquals(8, h.length()); |
| Assert.assertEquals("00000000", h); |
| |
| h = HashUtil.hash("q"); |
| Assert.assertEquals(8, h.length()); |
| Assert.assertEquals("e80982ff", h); |
| |
| h = HashUtil.hash("qq"); |
| Assert.assertEquals(8, h.length()); |
| Assert.assertEquals("252ef918", h); |
| |
| h = HashUtil.hash("qwertyuiop[]asdfghjkl;'zxcvbnm,./"); |
| Assert.assertEquals(8, h.length()); |
| Assert.assertEquals("fcc1f9fa", h); |
| } |
| |
| @Test |
| public void testHashWithBytes() { |
| // hash 32 bits (4 bytes) |
| |
| byte[] h = HashUtil.hash(b("")); |
| Assert.assertEquals(4, h.length); |
| Assert.assertEquals("00000000", hex(h)); |
| |
| h = HashUtil.hash(b("q")); |
| Assert.assertEquals(4, h.length); |
| Assert.assertEquals("e80982ff", hex(h)); |
| |
| h = HashUtil.hash(b("qq")); |
| Assert.assertEquals(4, h.length); |
| Assert.assertEquals("252ef918", hex(h)); |
| |
| h = HashUtil.hash(b("qwertyuiop[]asdfghjkl;'zxcvbnm,./")); |
| Assert.assertEquals(4, h.length); |
| Assert.assertEquals("fcc1f9fa", hex(h)); |
| } |
| |
| @Test |
| public void testHash128() { |
| // hash 128 bits (16 bytes) |
| |
| String h = HashUtil.hash128(""); |
| Assert.assertEquals(32, h.length()); |
| Assert.assertEquals("00000000000000000000000000000000", h); |
| |
| h = HashUtil.hash128("q"); |
| Assert.assertEquals(32, h.length()); |
| Assert.assertEquals("b1aba139b20c3ebcf667a14f41c7d17c", h); |
| |
| h = HashUtil.hash128("qq"); |
| Assert.assertEquals(32, h.length()); |
| Assert.assertEquals("2dbabe8ac8d8ce9eedc4b97add0f7c7c", h); |
| |
| h = HashUtil.hash128("qwertyuiop[]asdfghjkl;'zxcvbnm,./"); |
| Assert.assertEquals(32, h.length()); |
| Assert.assertEquals("49780e7800e613230520ed7b1116fef5", h); |
| } |
| |
| @Test |
| public void testHash128WithBytes() { |
| // hash 128 bits (16 bytes) |
| |
| byte[] h = HashUtil.hash128(b("")); |
| Assert.assertEquals(16, h.length); |
| Assert.assertEquals("00000000000000000000000000000000", hex(h)); |
| |
| h = HashUtil.hash128(b("q")); |
| Assert.assertEquals(16, h.length); |
| Assert.assertEquals("b1aba139b20c3ebcf667a14f41c7d17c", hex(h)); |
| |
| h = HashUtil.hash128(b("qq")); |
| Assert.assertEquals(16, h.length); |
| Assert.assertEquals("2dbabe8ac8d8ce9eedc4b97add0f7c7c", hex(h)); |
| |
| h = HashUtil.hash128(b("qwertyuiop[]asdfghjkl;'zxcvbnm,./")); |
| Assert.assertEquals(16, h.length); |
| Assert.assertEquals("49780e7800e613230520ed7b1116fef5", hex(h)); |
| } |
| |
| private static byte[] b(String string) { |
| return string.getBytes(); |
| } |
| |
| private static String hex(byte[] bytes) { |
| return Bytes.toHex(bytes); |
| } |
| } |