| /* |
| * 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 org.apache.hugegraph.unit.util; |
| |
| import org.junit.Test; |
| |
| import org.apache.hugegraph.unit.BaseUnitTest; |
| import org.apache.hugegraph.util.Bytes; |
| import org.apache.hugegraph.util.NumericUtil; |
| import org.apache.hugegraph.testutil.Assert; |
| |
| public class BytesTest extends BaseUnitTest { |
| |
| @Test |
| public void testBytesEquals() { |
| Assert.assertTrue(Bytes.equals(b("12345678"), |
| b("12345678"))); |
| Assert.assertTrue(Bytes.equals(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7})); |
| |
| Assert.assertFalse(Bytes.equals(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 6, 7})); |
| Assert.assertFalse(Bytes.equals(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7, 0})); |
| } |
| |
| @Test |
| public void testBytesPrefixWith() { |
| Assert.assertTrue(Bytes.prefixWith(b("12345678"), b("12345678"))); |
| Assert.assertTrue(Bytes.prefixWith(b("12345678"), b("1234567"))); |
| |
| Assert.assertTrue(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7})); |
| Assert.assertTrue(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5})); |
| Assert.assertTrue(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3})); |
| |
| Assert.assertFalse(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 6, 6})); |
| Assert.assertFalse(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{3, 1})); |
| Assert.assertFalse(Bytes.prefixWith(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7, 0})); |
| } |
| |
| @Test |
| public void testBytesCompare() { |
| Assert.assertTrue(Bytes.compare(b("12345678"), b("12345678")) == 0); |
| Assert.assertTrue(Bytes.compare(b("12345678"), b("1234567")) > 0); |
| Assert.assertTrue(Bytes.compare(b("12345678"), b("12345679")) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7}) == 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 6}) > 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5}) > 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 0}, |
| new byte[]{1, 3, 5}) > 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3}) > 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 6, 0}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 4}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{3, 1}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, 7, 0}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 7}, |
| new byte[]{1, 3, 5, -1}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, 0}, |
| new byte[]{1, 3, 5, -128}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, -2}, |
| new byte[]{1, 3, 5, -1}) < 0); |
| |
| Assert.assertTrue(Bytes.compare(new byte[]{1, 3, 5, -128}, |
| new byte[]{1, 3, 5, -1}) < 0); |
| } |
| |
| @Test |
| public void testBytesConcat() { |
| Assert.assertArrayEquals(b("12345678"), |
| Bytes.concat(b("1234"), b("5678"))); |
| Assert.assertArrayEquals(b("12345678"), |
| Bytes.concat(b("12345678"), b(""))); |
| Assert.assertArrayEquals(b("12345678"), |
| Bytes.concat(b(""), b("12345678"))); |
| } |
| |
| @Test |
| public void testBytesContains() { |
| Assert.assertTrue(Bytes.contains(b("1234"), (byte) '1')); |
| Assert.assertTrue(Bytes.contains(b("1234"), (byte) '3')); |
| Assert.assertTrue(Bytes.contains(b("1234"), (byte) '4')); |
| |
| Assert.assertFalse(Bytes.contains(b("1234"), (byte) '0')); |
| Assert.assertFalse(Bytes.contains(b(""), (byte) '0')); |
| } |
| |
| @Test |
| public void testBytesIndexOf() { |
| Assert.assertEquals(0, Bytes.indexOf(b("1234"), (byte) '1')); |
| Assert.assertEquals(2, Bytes.indexOf(b("1234"), (byte) '3')); |
| Assert.assertEquals(3, Bytes.indexOf(b("1234"), (byte) '4')); |
| |
| Assert.assertEquals(-1, Bytes.indexOf(b("1234"), (byte) '0')); |
| Assert.assertEquals(-1, Bytes.indexOf(b(""), (byte) '0')); |
| } |
| |
| @Test |
| public void testByteToHex() { |
| byte value = 0; |
| Assert.assertEquals("00", Bytes.toHex(value)); |
| |
| value = 127; |
| Assert.assertEquals("7f", Bytes.toHex(value)); |
| |
| value = -128; |
| Assert.assertEquals("80", Bytes.toHex(value)); |
| |
| value = -1; |
| Assert.assertEquals("ff", Bytes.toHex(value)); |
| } |
| |
| @Test |
| public void testBytesToHex() { |
| int value = 0x0103807f; |
| byte[] bytes = NumericUtil.intToBytes(value); |
| Assert.assertEquals("0103807f", Bytes.toHex(bytes)); |
| } |
| |
| @Test |
| public void testBytesFromHex() { |
| Assert.assertEquals(0x0103807f, |
| NumericUtil.bytesToInt(Bytes.fromHex("0103807f"))); |
| } |
| |
| private static byte[] b(String string) { |
| return string.getBytes(); |
| } |
| } |