| /* |
| * 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.tomcat.util.buf; |
| |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| import java.util.Arrays; |
| |
| import org.junit.Assert; |
| import org.junit.Ignore; |
| import org.junit.Test; |
| |
| import org.apache.tomcat.util.buf.ByteChunk.ByteOutputChannel; |
| |
| /** |
| * Test cases for {@link ByteChunk}. |
| */ |
| public class TestByteChunk { |
| |
| @Test |
| public void testConvertToBytes() throws UnsupportedEncodingException { |
| String string = "HTTP/1.1 100 Continue\r\n"; |
| byte[] bytes = ByteChunk.convertToBytes(string); |
| byte[] expected = string.getBytes("ISO-8859-1"); |
| Assert.assertTrue(Arrays.equals(bytes, expected)); |
| } |
| |
| |
| /* |
| * Test for {@code findByte} vs. {@code indexOf} methods difference. |
| * |
| * <p> |
| * As discussed in the "Re: r944918" thread on dev@, {@code |
| * ByteChunk.indexOf()} works for 0-127 ASCII chars only, and cannot find |
| * any chars outside of the range. {@code ByteChunk.findByte()} works for |
| * any ISO-8859-1 chars. |
| */ |
| @Test |
| public void testFindByte() throws UnsupportedEncodingException { |
| // 0xa0 = 160 = character |
| byte[] bytes = "Hello\u00a0world".getBytes("ISO-8859-1"); |
| final int len = bytes.length; |
| |
| // indexOf() does not work outside of 0-127 |
| Assert.assertEquals(5, ByteChunk.findByte(bytes, 0, len, (byte) '\u00a0')); |
| Assert.assertEquals(-1, ByteChunk.indexOf(bytes, 0, len, '\u00a0')); |
| |
| Assert.assertEquals(0, ByteChunk.findByte(bytes, 0, len, (byte) 'H')); |
| Assert.assertEquals(0, ByteChunk.indexOf(bytes, 0, len, 'H')); |
| |
| Assert.assertEquals(len - 1, ByteChunk.findByte(bytes, 0, len, (byte) 'd')); |
| Assert.assertEquals(len - 1, ByteChunk.indexOf(bytes, 0, len, 'd')); |
| |
| Assert.assertEquals(-1, ByteChunk.findByte(bytes, 0, len, (byte) 'x')); |
| Assert.assertEquals(-1, ByteChunk.indexOf(bytes, 0, len, 'x')); |
| |
| Assert.assertEquals(7, ByteChunk.findByte(bytes, 5, len, (byte) 'o')); |
| Assert.assertEquals(7, ByteChunk.indexOf(bytes, 5, len, 'o')); |
| |
| Assert.assertEquals(-1, ByteChunk.findByte(bytes, 2, 5, (byte) 'w')); |
| Assert.assertEquals(-1, ByteChunk.indexOf(bytes, 5, 5, 'w')); |
| } |
| |
| |
| @Test |
| public void testIndexOf_Char() throws UnsupportedEncodingException { |
| byte[] bytes = "Hello\u00a0world".getBytes("ISO-8859-1"); |
| final int len = bytes.length; |
| |
| ByteChunk bc = new ByteChunk(); |
| bc.setBytes(bytes, 0, len); |
| |
| Assert.assertEquals(0, bc.indexOf('H', 0)); |
| Assert.assertEquals(6, bc.indexOf('w', 0)); |
| |
| // Does not work outside of 0-127 |
| Assert.assertEquals(-1, bc.indexOf('\u00a0', 0)); |
| |
| bc.setBytes(bytes, 6, 5); |
| Assert.assertEquals(1, bc.indexOf('o', 0)); |
| |
| bc.setBytes(bytes, 6, 2); |
| Assert.assertEquals(0, bc.indexOf('w', 0)); |
| Assert.assertEquals(-1, bc.indexOf('d', 0)); |
| } |
| |
| |
| @Test |
| public void testIndexOf_String() throws UnsupportedEncodingException { |
| byte[] bytes = "Hello\u00a0world".getBytes("ISO-8859-1"); |
| final int len = bytes.length; |
| |
| ByteChunk bc = new ByteChunk(); |
| bc.setBytes(bytes, 0, len); |
| |
| Assert.assertEquals(0, bc.indexOf("Hello", 0, "Hello".length(), 0)); |
| Assert.assertEquals(2, bc.indexOf("ll", 0, 2, 0)); |
| Assert.assertEquals(2, bc.indexOf("Hello", 2, 2, 0)); |
| |
| Assert.assertEquals(7, bc.indexOf("o", 0, 1, 5)); |
| |
| // Does not work outside of 0-127 |
| Assert.assertEquals(-1, bc.indexOf("\u00a0", 0, 1, 0)); |
| |
| bc.setBytes(bytes, 6, 5); |
| Assert.assertEquals(1, bc.indexOf("o", 0, 1, 0)); |
| |
| bc.setBytes(bytes, 6, 2); |
| Assert.assertEquals(0, bc.indexOf("wo", 0, 1, 0)); |
| Assert.assertEquals(-1, bc.indexOf("d", 0, 1, 0)); |
| } |
| |
| |
| @Test |
| public void testFindBytes() throws UnsupportedEncodingException { |
| byte[] bytes = "Hello\u00a0world".getBytes("ISO-8859-1"); |
| final int len = bytes.length; |
| |
| Assert.assertEquals(0, ByteChunk.findBytes(bytes, 0, len, new byte[] { 'H' })); |
| Assert.assertEquals(5, ByteChunk.findBytes(bytes, 0, len, new byte[] { |
| (byte) '\u00a0', 'x' })); |
| Assert.assertEquals(5, ByteChunk.findBytes(bytes, 0, len - 4, new byte[] { |
| 'x', (byte) '\u00a0' })); |
| Assert.assertEquals(len - 1, ByteChunk.findBytes(bytes, 2, len, new byte[] { |
| 'x', 'd' })); |
| Assert.assertEquals(1, ByteChunk.findBytes(bytes, 0, len, new byte[] { 'o', |
| 'e' })); |
| Assert.assertEquals(-1, ByteChunk.findBytes(bytes, 2, 5, new byte[] { 'w' })); |
| } |
| |
| |
| @Ignore // Requires a 6GB heap (on markt's desktop - YMMV) |
| @Test |
| public void testAppend() throws Exception { |
| ByteChunk bc = new ByteChunk(); |
| bc.setByteOutputChannel(new Sink()); |
| // Defaults to no limit |
| |
| byte data[] = new byte[32 * 1024 * 1024]; |
| |
| for (int i = 0; i < 100; i++) { |
| bc.append(data, 0, data.length); |
| } |
| |
| Assert.assertEquals(AbstractChunk.ARRAY_MAX_SIZE, bc.getBuffer().length); |
| } |
| |
| |
| public class Sink implements ByteOutputChannel { |
| |
| @Override |
| public void realWriteBytes(byte[] cbuf, int off, int len) throws IOException { |
| // NO-OP |
| } |
| } |
| } |