/*
* 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.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import org.junit.Assert;
import org.junit.Test;
/**
* Test cases for {@link ByteChunk}.
*/
public class TestByteChunk {
@Test
public void testConvertToBytes() throws UnsupportedEncodingException {
String string = "HTTP/1.1 100 ";
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' }));
}
@Test
public void testSerialization() throws Exception {
String data = "Hello world!";
byte[] bytes = data.getBytes(StandardCharsets.UTF_8);
ByteChunk bcIn = new ByteChunk();
bcIn.setBytes(bytes, 0, bytes.length);
bcIn.setCharset(StandardCharsets.UTF_8);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(bcIn);
oos.close();
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bais);
ByteChunk bcOut = (ByteChunk) ois.readObject();
Assert.assertArrayEquals(bytes, bcOut.getBytes());
Assert.assertEquals(bcIn.getCharset(), bcOut.getCharset());
}
@Test
public void testToString() {
ByteChunk bc = new ByteChunk();
Assert.assertNull(bc.toString());
byte[] data = new byte[8];
bc.setBytes(data, 0, data.length);
Assert.assertNotNull(bc.toString());
bc.recycle();
// toString() should behave consistently for new ByteChunk and
// immediately after a call to recycle().
Assert.assertNull(bc.toString());
}
}