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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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.qpid.server.protocol;
import junit.framework.Assert;
import junit.framework.JUnit4TestAdapter;
import org.apache.qpid.codec.AMQDecoder;
import org.apache.qpid.codec.AMQEncoder;
import org.apache.qpid.framing.*;
import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.WriteFuture;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
import org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput;
import org.junit.Before;
import org.junit.Test;
/**
* This test suite tests the handling of protocol initiation frames and related issues.
*/
public class TestProtocolInitiation implements ProtocolVersionList
{
private AMQPFastProtocolHandler _protocolHandler;
private MockIoSession _mockIoSession;
/**
* We need to use the object encoder mechanism so to allow us to retrieve the
* output (a bytebuffer) we define our own encoder output class. The encoder
* writes the encoded data to this class, from where we can retrieve it during
* the test run.
*/
private class TestProtocolEncoderOutput implements ProtocolEncoderOutput
{
public ByteBuffer result;
public void write(ByteBuffer buf)
{
result = buf;
}
public void mergeAll()
{
throw new UnsupportedOperationException();
}
public WriteFuture flush()
{
throw new UnsupportedOperationException();
}
}
private class TestProtocolDecoderOutput implements ProtocolDecoderOutput
{
public Object result;
public void write(Object buf)
{
result = buf;
}
public void flush()
{
throw new UnsupportedOperationException();
}
}
@Before
public void createCommonObjects()
{
_mockIoSession = new MockIoSession();
_protocolHandler = new AMQPFastProtocolHandler(null, null);
}
/**
* Tests that the AMQDecoder handles invalid protocol classes
* @throws Exception
*/
@Test(expected = AMQProtocolClassException.class)
public void testDecoderValidateProtocolClass() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
pi.protocolClass = 2;
decodePI(pi);
}
/**
* Tests that the AMQDecoder handles invalid protocol instance numbers
* @throws Exception
*/
@Test(expected = AMQProtocolInstanceException.class)
public void testDecoderValidatesProtocolInstance() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
pi.protocolInstance = 2;
decodePI(pi);
}
/**
* Tests that the AMQDecoder handles invalid protocol major
* @throws Exception
*/
@Test(expected = AMQProtocolVersionException.class)
public void testDecoderValidatesProtocolMajor() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
pi.protocolMajor = 2;
decodePI(pi);
}
/**
* Tests that the AMQDecoder handles invalid protocol minor
* @throws Exception
*/
@Test(expected = AMQProtocolVersionException.class)
public void testDecoderValidatesProtocolMinor() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
pi.protocolMinor = 99;
decodePI(pi);
}
/**
* Tests that the AMQDecoder accepts a valid PI
* @throws Exception
*/
@Test(expected = AMQProtocolHeaderException.class)
public void testDecoderValidatesHeader() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
pi.header = new char[] {'P', 'Q', 'M', 'A' };
decodePI(pi);
}
/**
* Test that a valid header is passed by the decoder.
* @throws Exception
*/
@Test
public void testDecoderAcceptsValidHeader() throws Exception
{
ProtocolInitiation pi = createValidProtocolInitiation();
decodePI(pi);
}
/**
* This test checks that an invalid protocol header results in the
* connection being closed.
*/
@Test
public void testInvalidProtocolHeaderClosesConnection() throws Exception
{
AMQProtocolHeaderException pe = new AMQProtocolHeaderException("Test");
_protocolHandler.exceptionCaught(_mockIoSession, pe);
Assert.assertNotNull(_mockIoSession.getLastWrittenObject());
Object piResponse = _mockIoSession.getLastWrittenObject();
Assert.assertEquals(piResponse.getClass(), ProtocolInitiation.class);
ProtocolInitiation pi = (ProtocolInitiation) piResponse;
Assert.assertEquals("Protocol Initiation sent out was not the broker's expected header", pi,
createValidProtocolInitiation());
Assert.assertTrue("Session has not been closed", _mockIoSession.isClosing());
}
private ProtocolInitiation createValidProtocolInitiation()
{
/* Find last protocol version in protocol version list. Make sure last protocol version
listed in the build file (build-module.xml) is the latest version which will be used
here. */
int i = pv.length - 1;
return new ProtocolInitiation(pv[i][PROTOCOL_MAJOR], pv[i][PROTOCOL_MINOR]);
}
/**
* Helper that encodes a protocol initiation and attempts to decode it
* @param pi
* @throws Exception
*/
private void decodePI(ProtocolInitiation pi) throws Exception
{
// we need to do this test at the level of the decoder since we initially only expect PI frames
// so the protocol handler is not set up to know whether it should be expecting a PI frame or
// a different type of frame
AMQDecoder decoder = new AMQDecoder(true);
AMQEncoder encoder = new AMQEncoder();
TestProtocolEncoderOutput peo = new TestProtocolEncoderOutput();
encoder.encode(_mockIoSession, pi, peo);
TestProtocolDecoderOutput pdo = new TestProtocolDecoderOutput();
decoder.decode(_mockIoSession, peo.result, pdo);
((ProtocolInitiation) pdo.result).checkVersion(this);
}
public static junit.framework.Test suite()
{
return new JUnit4TestAdapter(TestProtocolInitiation.class);
}
}
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