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/*
* 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.thrift.transport;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.zip.DataFormatException;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;
import junit.framework.TestCase;
public class TestTZlibTransport extends TestCase {
protected TTransport getTransport(TTransport underlying) {
return new TZlibTransport(underlying);
}
public static byte[] byteSequence(int start, int end) {
byte[] result = new byte[end-start+1];
for (int i = 0; i <= (end-start); i++) {
result[i] = (byte)(start+i);
}
return result;
}
public void testRead() throws IOException, TTransportException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(baos);
DataOutputStream dos = new DataOutputStream(deflaterOutputStream);
dos.write(byteSequence(0, 49));
dos.write(byteSequence(0, 219));
deflaterOutputStream.finish();
TMemoryBuffer membuf = new TMemoryBuffer(0);
membuf.write(baos.toByteArray());
ReadCountingTransport countTrans = new ReadCountingTransport(membuf);
TTransport trans = getTransport(countTrans);
byte[] readBuf = new byte[10];
trans.read(readBuf, 0, 10);
assertTrue(Arrays.equals(readBuf, byteSequence(0,9)));
assertEquals(1, countTrans.readCount);
trans.read(readBuf, 0, 10);
assertTrue(Arrays.equals(readBuf, byteSequence(10,19)));
assertEquals(1, countTrans.readCount);
assertEquals(30, trans.read(new byte[30], 0, 30));
assertEquals(1, countTrans.readCount);
readBuf = new byte[220];
assertEquals(220, trans.read(readBuf, 0, 220));
assertTrue(Arrays.equals(readBuf, byteSequence(0, 219)));
assertEquals(1, countTrans.readCount);
}
public void testWrite() throws TTransportException, IOException, DataFormatException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
WriteCountingTransport countingTrans = new WriteCountingTransport(new TIOStreamTransport(new BufferedOutputStream(baos)));
TTransport trans = getTransport(countingTrans);
trans.write(byteSequence(0, 100));
assertEquals(0, countingTrans.writeCount);
trans.write(byteSequence(101, 200));
trans.write(byteSequence(201, 255));
assertEquals(0, countingTrans.writeCount);
trans.flush();
assertEquals(1, countingTrans.writeCount);
trans.write(byteSequence(0, 245));
trans.flush();
assertEquals(2, countingTrans.writeCount);
DataInputStream din = new DataInputStream(new InflaterInputStream(new ByteArrayInputStream(baos.toByteArray())));
byte[] buf = new byte[256];
int n = din.read(buf, 0, 256);
assertEquals(n, 256);
assertTrue(Arrays.equals(byteSequence(0, 255), buf));
buf = new byte[246];
n = din.read(buf, 0, 246);
assertEquals(n, 246);
for (int i = 0; i<buf.length; i++) {
assertEquals("for "+i, byteSequence(0,245)[i], buf[i]);
}
assertTrue(Arrays.equals(byteSequence(0,245), buf));
}
}
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