/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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.jboss.netty.buffer;
import static org.jboss.netty.buffer.ChannelBuffers.*;
import static org.junit.Assert.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.HashSet;
import java.util.NoSuchElementException;
import java.util.Random;
import java.util.Set;
import org.jboss.netty.util.CharsetUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* An abstract test class for channel buffers
*/
public abstract class AbstractChannelBufferTest {
private static final int CAPACITY = 4096; // Must be even
private static final int BLOCK_SIZE = 128;
private long seed;
private Random random;
private ChannelBuffer buffer;
protected abstract ChannelBuffer newBuffer(int capacity);
protected abstract ChannelBuffer[] components();
protected boolean discardReadBytesDoesNotMoveWritableBytes() {
return true;
}
@Before
public void init() {
buffer = newBuffer(CAPACITY);
seed = System.currentTimeMillis();
random = new Random(seed);
}
@After
public void dispose() {
buffer = null;
}
@Test
public void initialState() {
assertEquals(CAPACITY, buffer.capacity());
assertEquals(0, buffer.readerIndex());
}
@Test(expected = IndexOutOfBoundsException.class)
public void readerIndexBoundaryCheck1() {
try {
buffer.writerIndex(0);
} catch (IndexOutOfBoundsException e) {
fail();
}
buffer.readerIndex(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void readerIndexBoundaryCheck2() {
try {
buffer.writerIndex(buffer.capacity());
} catch (IndexOutOfBoundsException e) {
fail();
}
buffer.readerIndex(buffer.capacity() + 1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void readerIndexBoundaryCheck3() {
try {
buffer.writerIndex(CAPACITY / 2);
} catch (IndexOutOfBoundsException e) {
fail();
}
buffer.readerIndex(CAPACITY * 3 / 2);
}
@Test
public void readerIndexBoundaryCheck4() {
buffer.writerIndex(0);
buffer.readerIndex(0);
buffer.writerIndex(buffer.capacity());
buffer.readerIndex(buffer.capacity());
}
@Test(expected = IndexOutOfBoundsException.class)
public void writerIndexBoundaryCheck1() {
buffer.writerIndex(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void writerIndexBoundaryCheck2() {
try {
buffer.writerIndex(CAPACITY);
buffer.readerIndex(CAPACITY);
} catch (IndexOutOfBoundsException e) {
fail();
}
buffer.writerIndex(buffer.capacity() + 1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void writerIndexBoundaryCheck3() {
try {
buffer.writerIndex(CAPACITY);
buffer.readerIndex(CAPACITY / 2);
} catch (IndexOutOfBoundsException e) {
fail();
}
buffer.writerIndex(CAPACITY / 4);
}
@Test
public void writerIndexBoundaryCheck4() {
buffer.writerIndex(0);
buffer.readerIndex(0);
buffer.writerIndex(CAPACITY);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getByteBoundaryCheck1() {
buffer.getByte(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getByteBoundaryCheck2() {
buffer.getByte(buffer.capacity());
}
@Test(expected = IndexOutOfBoundsException.class)
public void getShortBoundaryCheck1() {
buffer.getShort(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getShortBoundaryCheck2() {
buffer.getShort(buffer.capacity() - 1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getMediumBoundaryCheck1() {
buffer.getMedium(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getMediumBoundaryCheck2() {
buffer.getMedium(buffer.capacity() - 2);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getIntBoundaryCheck1() {
buffer.getInt(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getIntBoundaryCheck2() {
buffer.getInt(buffer.capacity() - 3);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getLongBoundaryCheck1() {
buffer.getLong(-1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getLongBoundaryCheck2() {
buffer.getLong(buffer.capacity() - 7);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getByteArrayBoundaryCheck1() {
buffer.getBytes(-1, new byte[0]);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getByteArrayBoundaryCheck2() {
buffer.getBytes(-1, new byte[0], 0, 0);
}
@Test
public void getByteArrayBoundaryCheck3() {
byte[] dst = new byte[4];
buffer.setInt(0, 0x01020304);
try {
buffer.getBytes(0, dst, -1, 4);
fail();
} catch (IndexOutOfBoundsException e) {
// Success
}
// No partial copy is expected.
assertEquals(0, dst[0]);
assertEquals(0, dst[1]);
assertEquals(0, dst[2]);
assertEquals(0, dst[3]);
}
@Test
public void getByteArrayBoundaryCheck4() {
byte[] dst = new byte[4];
buffer.setInt(0, 0x01020304);
try {
buffer.getBytes(0, dst, 1, 4);
fail();
} catch (IndexOutOfBoundsException e) {
// Success
}
// No partial copy is expected.
assertEquals(0, dst[0]);
assertEquals(0, dst[1]);
assertEquals(0, dst[2]);
assertEquals(0, dst[3]);
}
@Test(expected = IndexOutOfBoundsException.class)
public void getByteBufferBoundaryCheck() {
buffer.getBytes(-1, ByteBuffer.allocate(0));
}
@Test(expected = IndexOutOfBoundsException.class)
public void copyBoundaryCheck1() {
buffer.copy(-1, 0);
}
@Test(expected = IndexOutOfBoundsException.class)
public void copyBoundaryCheck2() {
buffer.copy(0, buffer.capacity() + 1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void copyBoundaryCheck3() {
buffer.copy(buffer.capacity() + 1, 0);
}
@Test(expected = IndexOutOfBoundsException.class)
public void copyBoundaryCheck4() {
buffer.copy(buffer.capacity(), 1);
}
@Test(expected = IndexOutOfBoundsException.class)
public void setIndexBoundaryCheck1() {
buffer.setIndex(-1, CAPACITY);
}
@Test(expected = IndexOutOfBoundsException.class)
public void setIndexBoundaryCheck2() {
buffer.setIndex(CAPACITY / 2, CAPACITY / 4);
}
@Test(expected = IndexOutOfBoundsException.class)
public void setIndexBoundaryCheck3() {
buffer.setIndex(0, CAPACITY + 1);
}
@Test
public void getByteBufferState() {
ByteBuffer dst = ByteBuffer.allocate(4);
dst.position(1);
dst.limit(3);
buffer.setByte(0, (byte) 1);
buffer.setByte(1, (byte) 2);
buffer.setByte(2, (byte) 3);
buffer.setByte(3, (byte) 4);
buffer.getBytes(1, dst);
assertEquals(3, dst.position());
assertEquals(3, dst.limit());
dst.clear();
assertEquals(0, dst.get(0));
assertEquals(2, dst.get(1));
assertEquals(3, dst.get(2));
assertEquals(0, dst.get(3));
}
@Test(expected = IndexOutOfBoundsException.class)
public void getDirectByteBufferBoundaryCheck() {
buffer.getBytes(-1, ByteBuffer.allocateDirect(0));
}
@Test
public void getDirectByteBufferState() {
ByteBuffer dst = ByteBuffer.allocateDirect(4);
dst.position(1);
dst.limit(3);
buffer.setByte(0, (byte) 1);
buffer.setByte(1, (byte) 2);
buffer.setByte(2, (byte) 3);
buffer.setByte(3, (byte) 4);
buffer.getBytes(1, dst);
assertEquals(3, dst.position());
assertEquals(3, dst.limit());
dst.clear();
assertEquals(0, dst.get(0));
assertEquals(2, dst.get(1));
assertEquals(3, dst.get(2));
assertEquals(0, dst.get(3));
}
@Test
public void testRandomByteAccess() {
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
buffer.setByte(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
assertEquals(value, buffer.getByte(i));
}
}
@Test
public void testRandomUnsignedByteAccess() {
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
buffer.setByte(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i ++) {
int value = random.nextInt() & 0xFF;
assertEquals(value, buffer.getUnsignedByte(i));
}
}
@Test
public void testRandomShortAccess() {
for (int i = 0; i < buffer.capacity() - 1; i += 2) {
short value = (short) random.nextInt();
buffer.setShort(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 1; i += 2) {
short value = (short) random.nextInt();
assertEquals(value, buffer.getShort(i));
}
}
@Test
public void testRandomUnsignedShortAccess() {
for (int i = 0; i < buffer.capacity() - 1; i += 2) {
short value = (short) random.nextInt();
buffer.setShort(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 1; i += 2) {
int value = random.nextInt() & 0xFFFF;
assertEquals(value, buffer.getUnsignedShort(i));
}
}
@Test
public void testRandomMediumAccess() {
for (int i = 0; i < buffer.capacity() - 2; i += 3) {
int value = random.nextInt();
buffer.setMedium(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 2; i += 3) {
int value = random.nextInt() << 8 >> 8;
assertEquals(value, buffer.getMedium(i));
}
}
@Test
public void testRandomUnsignedMediumAccess() {
for (int i = 0; i < buffer.capacity() - 2; i += 3) {
int value = random.nextInt();
buffer.setMedium(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 2; i += 3) {
int value = random.nextInt() & 0x00FFFFFF;
assertEquals(value, buffer.getUnsignedMedium(i));
}
}
@Test
public void testRandomIntAccess() {
for (int i = 0; i < buffer.capacity() - 3; i += 4) {
int value = random.nextInt();
buffer.setInt(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 3; i += 4) {
int value = random.nextInt();
assertEquals(value, buffer.getInt(i));
}
}
@Test
public void testRandomUnsignedIntAccess() {
for (int i = 0; i < buffer.capacity() - 3; i += 4) {
int value = random.nextInt();
buffer.setInt(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 3; i += 4) {
long value = random.nextInt() & 0xFFFFFFFFL;
assertEquals(value, buffer.getUnsignedInt(i));
}
}
@Test
public void testRandomLongAccess() {
for (int i = 0; i < buffer.capacity() - 7; i += 8) {
long value = random.nextLong();
buffer.setLong(i, value);
}
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() - 7; i += 8) {
long value = random.nextLong();
assertEquals(value, buffer.getLong(i));
}
}
@Test
public void testSetZero() {
buffer.clear();
while (buffer.writable()) {
buffer.writeByte((byte) 0xFF);
}
for (int i = 0; i < buffer.capacity();) {
int length = Math.min(buffer.capacity() - i, random.nextInt(32));
buffer.setZero(i, length);
i += length;
}
for (int i = 0; i < buffer.capacity(); i ++) {
assertEquals(0, buffer.getByte(i));
}
}
@Test
public void testSequentialByteAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeByte(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readByte());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialUnsignedByteAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeByte(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i ++) {
int value = random.nextInt() & 0xFF;
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readUnsignedByte());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialShortAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 2) {
short value = (short) random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeShort(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i += 2) {
short value = (short) random.nextInt();
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readShort());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialUnsignedShortAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 2) {
short value = (short) random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeShort(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i += 2) {
int value = random.nextInt() & 0xFFFF;
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readUnsignedShort());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialMediumAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() / 3 * 3; i += 3) {
int value = random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeMedium(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity() / 3 * 3, buffer.writerIndex());
assertEquals(buffer.capacity() % 3, buffer.writableBytes());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() / 3 * 3; i += 3) {
int value = random.nextInt() << 8 >> 8;
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readMedium());
}
assertEquals(buffer.capacity() / 3 * 3, buffer.readerIndex());
assertEquals(buffer.capacity() / 3 * 3, buffer.writerIndex());
assertEquals(0, buffer.readableBytes());
assertEquals(buffer.capacity() % 3, buffer.writableBytes());
}
@Test
public void testSequentialUnsignedMediumAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() / 3 * 3; i += 3) {
int value = random.nextInt() & 0x00FFFFFF;
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeMedium(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity() / 3 * 3, buffer.writerIndex());
assertEquals(buffer.capacity() % 3, buffer.writableBytes());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity() / 3 * 3; i += 3) {
int value = random.nextInt() & 0x00FFFFFF;
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readUnsignedMedium());
}
assertEquals(buffer.capacity() / 3 * 3, buffer.readerIndex());
assertEquals(buffer.capacity() / 3 * 3, buffer.writerIndex());
assertEquals(0, buffer.readableBytes());
assertEquals(buffer.capacity() % 3, buffer.writableBytes());
}
@Test
public void testSequentialIntAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 4) {
int value = random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeInt(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i += 4) {
int value = random.nextInt();
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readInt());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialUnsignedIntAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 4) {
int value = random.nextInt();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeInt(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i += 4) {
long value = random.nextInt() & 0xFFFFFFFFL;
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readUnsignedInt());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testSequentialLongAccess() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 8) {
long value = random.nextLong();
assertEquals(i, buffer.writerIndex());
assertTrue(buffer.writable());
buffer.writeLong(value);
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.writable());
random.setSeed(seed);
for (int i = 0; i < buffer.capacity(); i += 8) {
long value = random.nextLong();
assertEquals(i, buffer.readerIndex());
assertTrue(buffer.readable());
assertEquals(value, buffer.readLong());
}
assertEquals(buffer.capacity(), buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
assertFalse(buffer.readable());
assertFalse(buffer.writable());
}
@Test
public void testByteArrayTransfer() {
byte[] value = new byte[BLOCK_SIZE * 2];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value);
buffer.setBytes(i, value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
}
random.setSeed(seed);
byte[] expectedValue = new byte[BLOCK_SIZE * 2];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue);
int valueOffset = random.nextInt(BLOCK_SIZE);
buffer.getBytes(i, value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue[j], value[j]);
}
}
}
@Test
public void testRandomByteArrayTransfer1() {
byte[] value = new byte[BLOCK_SIZE];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value);
buffer.setBytes(i, value);
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
buffer.getBytes(i, value);
for (int j = 0; j < BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value[j]);
}
}
}
@Test
public void testRandomByteArrayTransfer2() {
byte[] value = new byte[BLOCK_SIZE * 2];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value);
buffer.setBytes(i, value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
buffer.getBytes(i, value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value[j]);
}
}
}
@Test
public void testRandomHeapBufferTransfer1() {
byte[] valueContent = new byte[BLOCK_SIZE];
ChannelBuffer value = wrappedBuffer(valueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
value.setIndex(0, BLOCK_SIZE);
buffer.setBytes(i, value);
assertEquals(BLOCK_SIZE, value.readerIndex());
assertEquals(BLOCK_SIZE, value.writerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
value.clear();
buffer.getBytes(i, value);
assertEquals(0, value.readerIndex());
assertEquals(BLOCK_SIZE, value.writerIndex());
for (int j = 0; j < BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
}
}
@Test
public void testRandomHeapBufferTransfer2() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = wrappedBuffer(valueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
buffer.setBytes(i, value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
buffer.getBytes(i, value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
}
}
@Test
public void testRandomDirectBufferTransfer() {
byte[] tmp = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = directBuffer(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(tmp);
value.setBytes(0, tmp, 0, value.capacity());
buffer.setBytes(i, value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
}
random.setSeed(seed);
ChannelBuffer expectedValue = directBuffer(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(tmp);
expectedValue.setBytes(0, tmp, 0, expectedValue.capacity());
int valueOffset = random.nextInt(BLOCK_SIZE);
buffer.getBytes(i, value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
}
}
@Test
public void testRandomByteBufferTransfer() {
ByteBuffer value = ByteBuffer.allocate(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value.array());
value.clear().position(random.nextInt(BLOCK_SIZE));
value.limit(value.position() + BLOCK_SIZE);
buffer.setBytes(i, value);
}
random.setSeed(seed);
ByteBuffer expectedValue = ByteBuffer.allocate(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue.array());
int valueOffset = random.nextInt(BLOCK_SIZE);
value.clear().position(valueOffset).limit(valueOffset + BLOCK_SIZE);
buffer.getBytes(i, value);
assertEquals(valueOffset + BLOCK_SIZE, value.position());
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.get(j), value.get(j));
}
}
}
@Test
public void testSequentialByteArrayTransfer1() {
byte[] value = new byte[BLOCK_SIZE];
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value);
}
random.setSeed(seed);
byte[] expectedValue = new byte[BLOCK_SIZE];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
buffer.readBytes(value);
for (int j = 0; j < BLOCK_SIZE; j ++) {
assertEquals(expectedValue[j], value[j]);
}
}
}
@Test
public void testSequentialByteArrayTransfer2() {
byte[] value = new byte[BLOCK_SIZE * 2];
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
int readerIndex = random.nextInt(BLOCK_SIZE);
buffer.writeBytes(value, readerIndex, BLOCK_SIZE);
}
random.setSeed(seed);
byte[] expectedValue = new byte[BLOCK_SIZE * 2];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue);
int valueOffset = random.nextInt(BLOCK_SIZE);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
buffer.readBytes(value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue[j], value[j]);
}
}
}
@Test
public void testSequentialHeapBufferTransfer1() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = wrappedBuffer(valueContent);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
assertEquals(0, value.readerIndex());
assertEquals(valueContent.length, value.writerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
buffer.readBytes(value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(0, value.readerIndex());
assertEquals(valueContent.length, value.writerIndex());
}
}
@Test
public void testSequentialHeapBufferTransfer2() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = wrappedBuffer(valueContent);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
int readerIndex = random.nextInt(BLOCK_SIZE);
value.readerIndex(readerIndex);
value.writerIndex(readerIndex + BLOCK_SIZE);
buffer.writeBytes(value);
assertEquals(readerIndex + BLOCK_SIZE, value.writerIndex());
assertEquals(value.writerIndex(), value.readerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
value.readerIndex(valueOffset);
value.writerIndex(valueOffset);
buffer.readBytes(value, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(valueOffset, value.readerIndex());
assertEquals(valueOffset + BLOCK_SIZE, value.writerIndex());
}
}
@Test
public void testSequentialDirectBufferTransfer1() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = directBuffer(BLOCK_SIZE * 2);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
value.setBytes(0, valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
assertEquals(0, value.readerIndex());
assertEquals(0, value.writerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
value.setBytes(0, valueContent);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
buffer.readBytes(value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(0, value.readerIndex());
assertEquals(0, value.writerIndex());
}
}
@Test
public void testSequentialDirectBufferTransfer2() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = directBuffer(BLOCK_SIZE * 2);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
value.setBytes(0, valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
int readerIndex = random.nextInt(BLOCK_SIZE);
value.readerIndex(0);
value.writerIndex(readerIndex + BLOCK_SIZE);
value.readerIndex(readerIndex);
buffer.writeBytes(value);
assertEquals(readerIndex + BLOCK_SIZE, value.writerIndex());
assertEquals(value.writerIndex(), value.readerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
value.setBytes(0, valueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
value.readerIndex(valueOffset);
value.writerIndex(valueOffset);
buffer.readBytes(value, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(valueOffset, value.readerIndex());
assertEquals(valueOffset + BLOCK_SIZE, value.writerIndex());
}
}
@Test
public void testSequentialByteBufferBackedHeapBufferTransfer1() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = wrappedBuffer(ByteBuffer.allocate(BLOCK_SIZE * 2));
value.writerIndex(0);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
value.setBytes(0, valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value, random.nextInt(BLOCK_SIZE), BLOCK_SIZE);
assertEquals(0, value.readerIndex());
assertEquals(0, value.writerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
value.setBytes(0, valueContent);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
buffer.readBytes(value, valueOffset, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(0, value.readerIndex());
assertEquals(0, value.writerIndex());
}
}
@Test
public void testSequentialByteBufferBackedHeapBufferTransfer2() {
byte[] valueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer value = wrappedBuffer(ByteBuffer.allocate(BLOCK_SIZE * 2));
value.writerIndex(0);
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(valueContent);
value.setBytes(0, valueContent);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
int readerIndex = random.nextInt(BLOCK_SIZE);
value.readerIndex(0);
value.writerIndex(readerIndex + BLOCK_SIZE);
value.readerIndex(readerIndex);
buffer.writeBytes(value);
assertEquals(readerIndex + BLOCK_SIZE, value.writerIndex());
assertEquals(value.writerIndex(), value.readerIndex());
}
random.setSeed(seed);
byte[] expectedValueContent = new byte[BLOCK_SIZE * 2];
ChannelBuffer expectedValue = wrappedBuffer(expectedValueContent);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValueContent);
value.setBytes(0, valueContent);
int valueOffset = random.nextInt(BLOCK_SIZE);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
value.readerIndex(valueOffset);
value.writerIndex(valueOffset);
buffer.readBytes(value, BLOCK_SIZE);
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.getByte(j), value.getByte(j));
}
assertEquals(valueOffset, value.readerIndex());
assertEquals(valueOffset + BLOCK_SIZE, value.writerIndex());
}
}
@Test
public void testSequentialByteBufferTransfer() {
buffer.writerIndex(0);
ByteBuffer value = ByteBuffer.allocate(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(value.array());
value.clear().position(random.nextInt(BLOCK_SIZE));
value.limit(value.position() + BLOCK_SIZE);
buffer.writeBytes(value);
}
random.setSeed(seed);
ByteBuffer expectedValue = ByteBuffer.allocate(BLOCK_SIZE * 2);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue.array());
int valueOffset = random.nextInt(BLOCK_SIZE);
value.clear().position(valueOffset).limit(valueOffset + BLOCK_SIZE);
buffer.readBytes(value);
assertEquals(valueOffset + BLOCK_SIZE, value.position());
for (int j = valueOffset; j < valueOffset + BLOCK_SIZE; j ++) {
assertEquals(expectedValue.get(j), value.get(j));
}
}
}
@Test
public void testSequentialCopiedBufferTransfer1() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
byte[] value = new byte[BLOCK_SIZE];
random.nextBytes(value);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value);
}
random.setSeed(seed);
byte[] expectedValue = new byte[BLOCK_SIZE];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
ChannelBuffer actualValue = buffer.readBytes(BLOCK_SIZE);
assertEquals(wrappedBuffer(expectedValue), actualValue);
// Make sure if it is a copied buffer.
actualValue.setByte(0, (byte) (actualValue.getByte(0) + 1));
assertFalse(buffer.getByte(i) == actualValue.getByte(0));
}
}
@Test
@SuppressWarnings("deprecation")
public void testSequentialCopiedBufferTransfer2() {
buffer.clear();
buffer.writeZero(buffer.capacity());
try {
buffer.readBytes(ChannelBufferIndexFinder.CR);
fail();
} catch (NoSuchElementException e) {
// Expected
}
assertSame(EMPTY_BUFFER, buffer.readBytes(ChannelBufferIndexFinder.NUL));
buffer.clear();
buffer.writeBytes(new byte[] { 1, 2, 3, 4, 0 });
ChannelBuffer copy = buffer.readBytes(ChannelBufferIndexFinder.NUL);
assertEquals(wrappedBuffer(new byte[] { 1, 2, 3, 4 }), copy);
// Make sure if it is a copied buffer.
copy.setByte(0, (byte) (copy.getByte(0) + 1));
assertFalse(buffer.getByte(0) == copy.getByte(0));
}
@Test
public void testSequentialSlice1() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
byte[] value = new byte[BLOCK_SIZE];
random.nextBytes(value);
assertEquals(0, buffer.readerIndex());
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(value);
}
random.setSeed(seed);
byte[] expectedValue = new byte[BLOCK_SIZE];
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
random.nextBytes(expectedValue);
assertEquals(i, buffer.readerIndex());
assertEquals(CAPACITY, buffer.writerIndex());
ChannelBuffer actualValue = buffer.readSlice(BLOCK_SIZE);
assertEquals(wrappedBuffer(expectedValue), actualValue);
// Make sure if it is a sliced buffer.
actualValue.setByte(0, (byte) (actualValue.getByte(0) + 1));
assertEquals(buffer.getByte(i), actualValue.getByte(0));
}
}
@Test
@SuppressWarnings("deprecation")
public void testSequentialSlice2() {
buffer.clear();
buffer.writeZero(buffer.capacity());
try {
buffer.readSlice(ChannelBufferIndexFinder.CR);
fail();
} catch (NoSuchElementException e) {
// Expected
}
assertSame(EMPTY_BUFFER, buffer.readSlice(ChannelBufferIndexFinder.NUL));
buffer.clear();
buffer.writeBytes(new byte[] { 1, 2, 3, 4, 0 });
ChannelBuffer slice = buffer.readSlice(ChannelBufferIndexFinder.NUL);
assertEquals(wrappedBuffer(new byte[] { 1, 2, 3, 4 }), slice);
// Make sure if it is a sliced buffer.
slice.setByte(0, (byte) (slice.getByte(0) + 1));
assertEquals(buffer.getByte(0), slice.getByte(0));
}
@Test
public void testWriteZero() {
try {
buffer.writeZero(-1);
fail();
} catch (IllegalArgumentException e) {
// Expected
}
buffer.clear();
while (buffer.writable()) {
buffer.writeByte((byte) 0xFF);
}
buffer.clear();
for (int i = 0; i < buffer.capacity();) {
int length = Math.min(buffer.capacity() - i, random.nextInt(32));
buffer.writeZero(length);
i += length;
}
assertEquals(0, buffer.readerIndex());
assertEquals(buffer.capacity(), buffer.writerIndex());
for (int i = 0; i < buffer.capacity(); i ++) {
assertEquals(0, buffer.getByte(i));
}
}
@Test
public void testDiscardReadBytes() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i += 4) {
buffer.writeInt(i);
}
ChannelBuffer copy = copiedBuffer(buffer);
// Make sure there's no effect if called when readerIndex is 0.
buffer.readerIndex(CAPACITY / 4);
buffer.markReaderIndex();
buffer.writerIndex(CAPACITY / 3);
buffer.markWriterIndex();
buffer.readerIndex(0);
buffer.writerIndex(CAPACITY / 2);
buffer.discardReadBytes();
assertEquals(0, buffer.readerIndex());
assertEquals(CAPACITY / 2, buffer.writerIndex());
assertEquals(copy.slice(0, CAPACITY / 2), buffer.slice(0, CAPACITY / 2));
buffer.resetReaderIndex();
assertEquals(CAPACITY / 4, buffer.readerIndex());
buffer.resetWriterIndex();
assertEquals(CAPACITY / 3, buffer.writerIndex());
// Make sure bytes after writerIndex is not copied.
buffer.readerIndex(1);
buffer.writerIndex(CAPACITY / 2);
buffer.discardReadBytes();
assertEquals(0, buffer.readerIndex());
assertEquals(CAPACITY / 2 - 1, buffer.writerIndex());
assertEquals(copy.slice(1, CAPACITY / 2 - 1), buffer.slice(0, CAPACITY / 2 - 1));
if (discardReadBytesDoesNotMoveWritableBytes()) {
// If writable bytes were copied, the test should fail to avoid unnecessary memory bandwidth consumption.
assertFalse(copy.slice(CAPACITY / 2, CAPACITY / 2).equals(buffer.slice(CAPACITY / 2 - 1, CAPACITY / 2)));
} else {
assertEquals(copy.slice(CAPACITY / 2, CAPACITY / 2), buffer.slice(CAPACITY / 2 - 1, CAPACITY / 2));
}
// Marks also should be relocated.
buffer.resetReaderIndex();
assertEquals(CAPACITY / 4 - 1, buffer.readerIndex());
buffer.resetWriterIndex();
assertEquals(CAPACITY / 3 - 1, buffer.writerIndex());
}
/**
* The similar test case with {@link #testDiscardReadBytes()} but this one
* discards a large chunk at once.
*/
@Test
public void testDiscardReadBytes2() {
buffer.writerIndex(0);
for (int i = 0; i < buffer.capacity(); i ++) {
buffer.writeByte((byte) i);
}
ChannelBuffer copy = copiedBuffer(buffer);
// Discard the first (CAPACITY / 2 - 1) bytes.
buffer.setIndex(CAPACITY / 2 - 1, CAPACITY - 1);
buffer.discardReadBytes();
assertEquals(0, buffer.readerIndex());
assertEquals(CAPACITY / 2, buffer.writerIndex());
for (int i = 0; i < CAPACITY / 2; i ++) {
assertEquals(copy.slice(CAPACITY / 2 - 1 + i, CAPACITY / 2 - i), buffer.slice(i, CAPACITY / 2 - i));
}
}
@Test
public void testStreamTransfer1() throws Exception {
byte[] expected = new byte[buffer.capacity()];
random.nextBytes(expected);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
ByteArrayInputStream in = new ByteArrayInputStream(expected, i, BLOCK_SIZE);
assertEquals(BLOCK_SIZE, buffer.setBytes(i, in, BLOCK_SIZE));
assertEquals(-1, buffer.setBytes(i, in, 0));
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
buffer.getBytes(i, out, BLOCK_SIZE);
}
assertTrue(Arrays.equals(expected, out.toByteArray()));
}
@Test
public void testStreamTransfer2() throws Exception {
byte[] expected = new byte[buffer.capacity()];
random.nextBytes(expected);
buffer.clear();
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
ByteArrayInputStream in = new ByteArrayInputStream(expected, i, BLOCK_SIZE);
assertEquals(i, buffer.writerIndex());
buffer.writeBytes(in, BLOCK_SIZE);
assertEquals(i + BLOCK_SIZE, buffer.writerIndex());
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
assertEquals(i, buffer.readerIndex());
buffer.readBytes(out, BLOCK_SIZE);
assertEquals(i + BLOCK_SIZE, buffer.readerIndex());
}
assertTrue(Arrays.equals(expected, out.toByteArray()));
}
@Test
public void testCopy() {
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
buffer.setByte(i, value);
}
final int readerIndex = CAPACITY / 3;
final int writerIndex = CAPACITY * 2 / 3;
buffer.setIndex(readerIndex, writerIndex);
// Make sure all properties are copied.
ChannelBuffer copy = buffer.copy();
assertEquals(0, copy.readerIndex());
assertEquals(buffer.readableBytes(), copy.writerIndex());
assertEquals(buffer.readableBytes(), copy.capacity());
assertSame(buffer.order(), copy.order());
for (int i = 0; i < copy.capacity(); i ++) {
assertEquals(buffer.getByte(i + readerIndex), copy.getByte(i));
}
// Make sure the buffer content is independent from each other.
buffer.setByte(readerIndex, (byte) (buffer.getByte(readerIndex) + 1));
assertTrue(buffer.getByte(readerIndex) != copy.getByte(0));
copy.setByte(1, (byte) (copy.getByte(1) + 1));
assertTrue(buffer.getByte(readerIndex + 1) != copy.getByte(1));
}
@Test
public void testDuplicate() {
for (int i = 0; i < buffer.capacity(); i ++) {
byte value = (byte) random.nextInt();
buffer.setByte(i, value);
}
final int readerIndex = CAPACITY / 3;
final int writerIndex = CAPACITY * 2 / 3;
buffer.setIndex(readerIndex, writerIndex);
// Make sure all properties are copied.
ChannelBuffer duplicate = buffer.duplicate();
assertEquals(buffer.readerIndex(), duplicate.readerIndex());
assertEquals(buffer.writerIndex(), duplicate.writerIndex());
assertEquals(buffer.capacity(), duplicate.capacity());
assertSame(buffer.order(), duplicate.order());
for (int i = 0; i < duplicate.capacity(); i ++) {
assertEquals(buffer.getByte(i), duplicate.getByte(i));
}
// Make sure the buffer content is shared.
buffer.setByte(readerIndex, (byte) (buffer.getByte(readerIndex) + 1));
assertEquals(buffer.getByte(readerIndex), duplicate.getByte(readerIndex));
duplicate.setByte(1, (byte) (duplicate.getByte(1) + 1));
assertEquals(buffer.getByte(1), duplicate.getByte(1));
}
@Test
public void testSliceEndianness() throws Exception {
assertEquals(buffer.order(), buffer.slice(0, buffer.capacity()).order());
assertEquals(buffer.order(), buffer.slice(0, buffer.capacity() - 1).order());
assertEquals(buffer.order(), buffer.slice(1, buffer.capacity() - 1).order());
assertEquals(buffer.order(), buffer.slice(1, buffer.capacity() - 2).order());
}
@Test
public void testSliceIndex() throws Exception {
assertEquals(0, buffer.slice(0, buffer.capacity()).readerIndex());
assertEquals(0, buffer.slice(0, buffer.capacity() - 1).readerIndex());
assertEquals(0, buffer.slice(1, buffer.capacity() - 1).readerIndex());
assertEquals(0, buffer.slice(1, buffer.capacity() - 2).readerIndex());
assertEquals(buffer.capacity(), buffer.slice(0, buffer.capacity()).writerIndex());
assertEquals(buffer.capacity() - 1, buffer.slice(0, buffer.capacity() - 1).writerIndex());
assertEquals(buffer.capacity() - 1, buffer.slice(1, buffer.capacity() - 1).writerIndex());
assertEquals(buffer.capacity() - 2, buffer.slice(1, buffer.capacity() - 2).writerIndex());
}
@Test
public void testEquals() {
assertFalse(buffer.equals(null));
assertFalse(buffer.equals(new Object()));
byte[] value = new byte[32];
buffer.setIndex(0, value.length);
random.nextBytes(value);
buffer.setBytes(0, value);
assertEquals(buffer, wrappedBuffer(BIG_ENDIAN, value));
assertEquals(buffer, wrappedBuffer(LITTLE_ENDIAN, value));
value[0] ++;
assertFalse(buffer.equals(wrappedBuffer(BIG_ENDIAN, value)));
assertFalse(buffer.equals(wrappedBuffer(LITTLE_ENDIAN, value)));
}
@Test
public void testCompareTo() {
try {
buffer.compareTo(null);
fail();
} catch (NullPointerException e) {
// Expected
}
// Fill the random stuff
byte[] value = new byte[32];
random.nextBytes(value);
// Prevent overflow / underflow
if (value[0] == 0) {
value[0] ++;
} else if (value[0] == -1) {
value[0] --;
}
buffer.setIndex(0, value.length);
buffer.setBytes(0, value);
assertEquals(0, buffer.compareTo(wrappedBuffer(BIG_ENDIAN, value)));
assertEquals(0, buffer.compareTo(wrappedBuffer(LITTLE_ENDIAN, value)));
value[0] ++;
assertTrue(buffer.compareTo(wrappedBuffer(BIG_ENDIAN, value)) < 0);
assertTrue(buffer.compareTo(wrappedBuffer(LITTLE_ENDIAN, value)) < 0);
value[0] -= 2;
assertTrue(buffer.compareTo(wrappedBuffer(BIG_ENDIAN, value)) > 0);
assertTrue(buffer.compareTo(wrappedBuffer(LITTLE_ENDIAN, value)) > 0);
value[0] ++;
assertTrue(buffer.compareTo(wrappedBuffer(BIG_ENDIAN, value, 0, 31)) > 0);
assertTrue(buffer.compareTo(wrappedBuffer(LITTLE_ENDIAN, value, 0, 31)) > 0);
assertTrue(buffer.slice(0, 31).compareTo(wrappedBuffer(BIG_ENDIAN, value)) < 0);
assertTrue(buffer.slice(0, 31).compareTo(wrappedBuffer(LITTLE_ENDIAN, value)) < 0);
}
@Test
public void testToString() {
buffer.clear();
buffer.writeBytes(copiedBuffer("Hello, World!", CharsetUtil.ISO_8859_1));
assertEquals("Hello, World!", buffer.toString(CharsetUtil.ISO_8859_1));
}
@Test
public void testIndexOf() {
buffer.clear();
buffer.writeByte((byte) 1);
buffer.writeByte((byte) 2);
buffer.writeByte((byte) 3);
buffer.writeByte((byte) 2);
buffer.writeByte((byte) 1);
assertEquals(-1, buffer.indexOf(1, 4, (byte) 1));
assertEquals(-1, buffer.indexOf(4, 1, (byte) 1));
assertEquals(1, buffer.indexOf(1, 4, (byte) 2));
assertEquals(3, buffer.indexOf(4, 1, (byte) 2));
}
@Test
public void testToByteBuffer1() {
byte[] value = new byte[buffer.capacity()];
random.nextBytes(value);
buffer.clear();
buffer.writeBytes(value);
assertEquals(ByteBuffer.wrap(value), buffer.toByteBuffer());
}
@Test
public void testToByteBuffer2() {
byte[] value = new byte[buffer.capacity()];
random.nextBytes(value);
buffer.clear();
buffer.writeBytes(value);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
assertEquals(ByteBuffer.wrap(value, i, BLOCK_SIZE), buffer.toByteBuffer(i, BLOCK_SIZE));
}
}
@Test
public void testToByteBuffer3() {
assertEquals(buffer.order(), buffer.toByteBuffer().order());
}
@Test
public void testToByteBuffers1() {
byte[] value = new byte[buffer.capacity()];
random.nextBytes(value);
buffer.clear();
buffer.writeBytes(value);
ByteBuffer[] nioBuffers = buffer.toByteBuffers();
int length = 0;
for (ByteBuffer b: nioBuffers) {
length += b.remaining();
}
ByteBuffer nioBuffer = ByteBuffer.allocate(length);
for (ByteBuffer b: nioBuffers) {
nioBuffer.put(b);
}
nioBuffer.flip();
assertEquals(ByteBuffer.wrap(value), nioBuffer);
}
@Test
public void testToByteBuffers2() {
byte[] value = new byte[buffer.capacity()];
random.nextBytes(value);
buffer.clear();
buffer.writeBytes(value);
for (int i = 0; i < buffer.capacity() - BLOCK_SIZE + 1; i += BLOCK_SIZE) {
ByteBuffer[] nioBuffers = buffer.toByteBuffers(i, BLOCK_SIZE);
ByteBuffer nioBuffer = ByteBuffer.allocate(BLOCK_SIZE);
for (ByteBuffer b: nioBuffers) {
nioBuffer.put(b);
}
nioBuffer.flip();
assertEquals(ByteBuffer.wrap(value, i, BLOCK_SIZE), nioBuffer);
}
}
@Test
public void testSkipBytes1() {
buffer.setIndex(CAPACITY / 4, CAPACITY / 2);
buffer.skipBytes(CAPACITY / 4);
assertEquals(CAPACITY / 4 * 2, buffer.readerIndex());
try {
buffer.skipBytes(CAPACITY / 4 + 1);
fail();
} catch (IndexOutOfBoundsException e) {
// Expected
}
// Should remain unchanged.
assertEquals(CAPACITY / 4 * 2, buffer.readerIndex());
}
@Test
@SuppressWarnings("deprecation")
public void testSkipBytes2() {
buffer.clear();
buffer.writeZero(buffer.capacity());
try {
buffer.skipBytes(ChannelBufferIndexFinder.LF);
fail();
} catch (NoSuchElementException e) {
// Expected
}
buffer.skipBytes(ChannelBufferIndexFinder.NUL);
assertEquals(0, buffer.readerIndex());
buffer.clear();
buffer.writeBytes(new byte[] { 1, 2, 3, 4, 0 });
buffer.skipBytes(ChannelBufferIndexFinder.NUL);
assertEquals(4, buffer.readerIndex());
}
@Test
public void testHashCode() {
ChannelBuffer elemA = buffer(15);
ChannelBuffer elemB = directBuffer(15);
elemA.writeBytes(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5 });
elemB.writeBytes(new byte[] { 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9 });
Set<ChannelBuffer> set = new HashSet<ChannelBuffer>();
set.add(elemA);
set.add(elemB);
assertEquals(2, set.size());
assertTrue(set.contains(elemA.copy()));
assertTrue(set.contains(elemB.copy()));
buffer.clear();
buffer.writeBytes(elemA.duplicate());
assertTrue(set.remove(buffer));
assertFalse(set.contains(elemA));
assertEquals(1, set.size());
buffer.clear();
buffer.writeBytes(elemB.duplicate());
assertTrue(set.remove(buffer));
assertFalse(set.contains(elemB));
assertEquals(0, set.size());
}
// Test case for https://github.com/netty/netty/issues/325
@Test
public void testDiscardAllReadBytes() {
buffer.writerIndex(buffer.capacity());
buffer.readerIndex(buffer.writerIndex());
buffer.discardReadBytes();
}
}