/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.ogt.http.util;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.apache.ogt.http.util.ByteArrayBuffer;
import org.apache.ogt.http.util.CharArrayBuffer;
import junit.framework.TestCase;
/**
* Unit tests for {@link CharArrayBuffer}.
*
*/
public class TestCharArrayBuffer extends TestCase {
public TestCharArrayBuffer(String testName) {
super(testName);
}
public void testConstructor() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(16);
assertEquals(16, buffer.capacity());
assertEquals(0, buffer.length());
assertNotNull(buffer.buffer());
assertEquals(16, buffer.buffer().length);
try {
new CharArrayBuffer(-1);
fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// expected
}
}
public void testSimpleAppend() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(16);
assertEquals(16, buffer.capacity());
assertEquals(0, buffer.length());
char[] b1 = buffer.toCharArray();
assertNotNull(b1);
assertEquals(0, b1.length);
assertTrue(buffer.isEmpty());
assertFalse(buffer.isFull());
char[] tmp = new char[] { '1', '2', '3', '4'};
buffer.append(tmp, 0, tmp.length);
assertEquals(16, buffer.capacity());
assertEquals(4, buffer.length());
assertFalse(buffer.isEmpty());
assertFalse(buffer.isFull());
char[] b2 = buffer.toCharArray();
assertNotNull(b2);
assertEquals(4, b2.length);
for (int i = 0; i < tmp.length; i++) {
assertEquals(tmp[i], b2[i]);
assertEquals(tmp[i], buffer.charAt(i));
}
assertEquals("1234", buffer.toString());
buffer.clear();
assertEquals(16, buffer.capacity());
assertEquals(0, buffer.length());
assertTrue(buffer.isEmpty());
assertFalse(buffer.isFull());
}
public void testExpandAppend() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
assertEquals(4, buffer.capacity());
char[] tmp = new char[] { '1', '2', '3', '4'};
buffer.append(tmp, 0, 2);
buffer.append(tmp, 0, 4);
buffer.append(tmp, 0, 0);
assertEquals(8, buffer.capacity());
assertEquals(6, buffer.length());
buffer.append(tmp, 0, 4);
assertEquals(16, buffer.capacity());
assertEquals(10, buffer.length());
assertEquals("1212341234", buffer.toString());
}
public void testAppendString() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append("stuff");
buffer.append(" and more stuff");
assertEquals("stuff and more stuff", buffer.toString());
}
public void testAppendNullString() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append((String)null);
assertEquals("null", buffer.toString());
}
public void testAppendCharArrayBuffer() throws Exception {
CharArrayBuffer buffer1 = new CharArrayBuffer(8);
buffer1.append(" and more stuff");
CharArrayBuffer buffer2 = new CharArrayBuffer(8);
buffer2.append("stuff");
buffer2.append(buffer1);
assertEquals("stuff and more stuff", buffer2.toString());
}
public void testAppendNullCharArrayBuffer() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append((CharArrayBuffer)null);
buffer.append((CharArrayBuffer)null, 0, 0);
assertEquals("", buffer.toString());
}
public void testAppendSingleChar() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
buffer.append('1');
buffer.append('2');
buffer.append('3');
buffer.append('4');
buffer.append('5');
buffer.append('6');
assertEquals("123456", buffer.toString());
}
public void testInvalidCharArrayAppend() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
buffer.append((char[])null, 0, 0);
char[] tmp = new char[] { '1', '2', '3', '4'};
try {
buffer.append(tmp, -1, 0);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 0, -1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 0, 8);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 10, Integer.MAX_VALUE);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 2, 4);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
}
public void testSetLength() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
buffer.setLength(2);
assertEquals(2, buffer.length());
}
public void testSetInvalidLength() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
try {
buffer.setLength(-2);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.setLength(200);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
}
public void testEnsureCapacity() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
buffer.ensureCapacity(2);
assertEquals(4, buffer.capacity());
buffer.ensureCapacity(8);
assertEquals(8, buffer.capacity());
}
public void testIndexOf() {
CharArrayBuffer buffer = new CharArrayBuffer(16);
buffer.append("name: value");
assertEquals(4, buffer.indexOf(':'));
assertEquals(-1, buffer.indexOf(','));
assertEquals(4, buffer.indexOf(':', -1, 11));
assertEquals(4, buffer.indexOf(':', 0, 1000));
assertEquals(-1, buffer.indexOf(':', 2, 1));
}
public void testSubstring() {
CharArrayBuffer buffer = new CharArrayBuffer(16);
buffer.append(" name: value ");
assertEquals(5, buffer.indexOf(':'));
assertEquals(" name", buffer.substring(0, 5));
assertEquals(" value ", buffer.substring(6, buffer.length()));
assertEquals("name", buffer.substringTrimmed(0, 5));
assertEquals("value", buffer.substringTrimmed(6, buffer.length()));
assertEquals("", buffer.substringTrimmed(13, buffer.length()));
}
public void testSubstringIndexOfOutBound() {
CharArrayBuffer buffer = new CharArrayBuffer(16);
buffer.append("stuff");
try {
buffer.substring(-2, 10);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.substringTrimmed(-2, 10);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.substring(12, 10);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.substringTrimmed(12, 10);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.substring(2, 1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.substringTrimmed(2, 1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
}
public void testAppendAsciiByteArray() throws Exception {
String s1 = "stuff";
String s2 = " and more stuff";
byte[] b1 = s1.getBytes("US-ASCII");
byte[] b2 = s2.getBytes("US-ASCII");
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append(b1, 0, b1.length);
buffer.append(b2, 0, b2.length);
assertEquals("stuff and more stuff", buffer.toString());
}
public void testAppendISOByteArray() throws Exception {
byte[] b = new byte[] {0x00, 0x20, 0x7F, -0x80, -0x01};
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append(b, 0, b.length);
char[] ch = buffer.toCharArray();
assertNotNull(ch);
assertEquals(5, ch.length);
assertEquals(0x00, ch[0]);
assertEquals(0x20, ch[1]);
assertEquals(0x7F, ch[2]);
assertEquals(0x80, ch[3]);
assertEquals(0xFF, ch[4]);
}
public void testAppendNullByteArray() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append((byte[])null, 0, 0);
assertEquals("", buffer.toString());
}
public void testAppendNullByteArrayBuffer() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(8);
buffer.append((ByteArrayBuffer)null, 0, 0);
assertEquals("", buffer.toString());
}
public void testInvalidAppendAsciiByteArray() throws Exception {
CharArrayBuffer buffer = new CharArrayBuffer(4);
buffer.append((byte[])null, 0, 0);
byte[] tmp = new byte[] { '1', '2', '3', '4'};
try {
buffer.append(tmp, -1, 0);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 0, -1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 0, 8);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 10, Integer.MAX_VALUE);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
try {
buffer.append(tmp, 2, 4);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException ex) {
// expected
}
}
public void testSerialization() throws Exception {
CharArrayBuffer orig = new CharArrayBuffer(32);
orig.append('a');
orig.append('b');
orig.append('c');
ByteArrayOutputStream outbuffer = new ByteArrayOutputStream();
ObjectOutputStream outstream = new ObjectOutputStream(outbuffer);
outstream.writeObject(orig);
outstream.close();
byte[] raw = outbuffer.toByteArray();
ByteArrayInputStream inbuffer = new ByteArrayInputStream(raw);
ObjectInputStream instream = new ObjectInputStream(inbuffer);
CharArrayBuffer clone = (CharArrayBuffer) instream.readObject();
assertEquals(orig.capacity(), clone.capacity());
assertEquals(orig.length(), clone.length());
char[] data = clone.toCharArray();
assertNotNull(data);
assertEquals(3, data.length);
assertEquals('a', data[0]);
assertEquals('b', data[1]);
assertEquals('c', data[2]);
}
}