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* 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
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*
* 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.
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*
* 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
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*/
package org.apache.http.impl.nio.codecs;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.WritableByteChannel;
import org.apache.http.impl.io.HttpTransportMetricsImpl;
import org.apache.http.impl.nio.reactor.SessionOutputBufferImpl;
import org.apache.http.nio.reactor.SessionOutputBuffer;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EncodingUtils;
import org.junit.Assert;
import org.junit.Test;
/**
* Simple tests for {@link ChunkEncoder}.
*/
public class TestChunkEncoder {
private static ByteBuffer wrap(final String s) {
return ByteBuffer.wrap(EncodingUtils.getAsciiBytes(s));
}
private static WritableByteChannel newChannel(final ByteArrayOutputStream baos) {
return Channels.newChannel(baos);
}
@Test
public void testBasicCoding() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 128, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
encoder.write(wrap("12345"));
encoder.write(wrap("678"));
encoder.write(wrap("90"));
encoder.complete();
outbuf.flush(channel);
String s = baos.toString("US-ASCII");
Assert.assertTrue(encoder.isCompleted());
Assert.assertEquals("5\r\n12345\r\n3\r\n678\r\n2\r\n90\r\n0\r\n\r\n", s);
}
@Test
public void testChunkNoExceed() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
encoder.write(wrap("1234"));
encoder.complete();
outbuf.flush(channel);
String s = baos.toString("US-ASCII");
Assert.assertTrue(encoder.isCompleted());
Assert.assertEquals("4\r\n1234\r\n0\r\n\r\n", s);
}
@Test
public void testHttpCore239() throws Exception {
FixedByteChannel channel = new FixedByteChannel(16);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(16, 16, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
// fill up the channel
channel.write(wrap("0123456789ABCDEF"));
// fill up the out buffer
outbuf.write(wrap("0123456789ABCDEF"));
ByteBuffer src = wrap("0123456789ABCDEF");
Assert.assertEquals(0, encoder.write(src));
Assert.assertEquals(0, encoder.write(src));
Assert.assertEquals(0, encoder.write(src));
// should not be able to copy any bytes, until we flush the channel and buffer
channel.reset();
outbuf.flush(channel);
channel.reset();
Assert.assertEquals(4, encoder.write(src));
channel.flush();
Assert.assertEquals(4, encoder.write(src));
channel.flush();
Assert.assertEquals(4, encoder.write(src));
channel.flush();
Assert.assertEquals(4, encoder.write(src));
channel.flush();
Assert.assertEquals(0, encoder.write(src));
outbuf.flush(channel);
String s = channel.toString("US-ASCII");
Assert.assertEquals("4\r\n0123\r\n4\r\n4567\r\n4\r\n89AB\r\n4\r\nCDEF\r\n", s);
}
@Test
public void testChunkExceed() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(16, 16, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
ByteBuffer src = wrap("0123456789ABCDEF");
Assert.assertEquals(4, encoder.write(src));
Assert.assertTrue(src.hasRemaining());
Assert.assertEquals(12, src.remaining());
Assert.assertEquals(4, encoder.write(src));
Assert.assertTrue(src.hasRemaining());
Assert.assertEquals(8, src.remaining());
Assert.assertEquals(4, encoder.write(src));
Assert.assertEquals(4, encoder.write(src));
Assert.assertFalse(src.hasRemaining());
outbuf.flush(channel);
String s = baos.toString("US-ASCII");
Assert.assertEquals("4\r\n0123\r\n4\r\n4567\r\n4\r\n89AB\r\n4\r\nCDEF\r\n", s);
}
@Test
public void testCodingEmptyBuffer() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 128, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
encoder.write(wrap("12345"));
encoder.write(wrap("678"));
encoder.write(wrap("90"));
ByteBuffer empty = ByteBuffer.allocate(100);
empty.flip();
encoder.write(empty);
encoder.write(null);
encoder.complete();
outbuf.flush(channel);
String s = baos.toString("US-ASCII");
Assert.assertTrue(encoder.isCompleted());
Assert.assertEquals("5\r\n12345\r\n3\r\n678\r\n2\r\n90\r\n0\r\n\r\n", s);
}
@Test
public void testCodingCompleted() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 128, params);
HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
ChunkEncoder encoder = new ChunkEncoder(channel, outbuf, metrics);
encoder.write(wrap("12345"));
encoder.write(wrap("678"));
encoder.write(wrap("90"));
encoder.complete();
try {
encoder.write(wrap("more stuff"));
Assert.fail("IllegalStateException should have been thrown");
} catch (IllegalStateException ex) {
// ignore
}
try {
encoder.complete();
Assert.fail("IllegalStateException should have been thrown");
} catch (IllegalStateException ex) {
// ignore
}
}
@Test
public void testInvalidConstructor() {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(baos);
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 128, params);
try {
new ChunkEncoder(null, null, null);
Assert.fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// ignore
}
try {
new ChunkEncoder(channel, null, null);
Assert.fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// ignore
}
try {
new ChunkEncoder(channel, outbuf, null);
Assert.fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// ignore
}
}
public class FixedByteChannel implements WritableByteChannel {
// collect bytes written for unit test result evaluation
private final ByteArrayOutputStream baos = new ByteArrayOutputStream();
private final ByteBuffer buffer;
public FixedByteChannel(int size) {
this.buffer = ByteBuffer.allocate(size);
}
public int write(ByteBuffer src) throws IOException {
// copy bytes into baos for result evaluation
final int start = src.position();
int count = 0;
for (int i=start; i 0; i++) {
final byte b = src.get(i);
baos.write(b);
buffer.put(b);
count++;
}
// update processed position on src buffer
src.position(src.position() + count);
return count;
}
public boolean isOpen() {
return false;
}
public void close() throws IOException {
}
public void flush() {
buffer.clear();
}
public void reset() {
baos.reset();
buffer.clear();
}
public String toString(String encoding) throws UnsupportedEncodingException {
return baos.toString(encoding);
}
}
}