broker-plugins/amqp-1-0-protocol/src/test/java/org/apache/qpid/server/protocol/v1_0/framing/FrameHandlerTest.java

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 * 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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package org.apache.qpid.server.protocol.v1_0.framing;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import org.mockito.ArgumentCaptor;

import org.apache.qpid.server.bytebuffer.QpidByteBuffer;
import org.apache.qpid.server.protocol.v1_0.ConnectionHandler;
import org.apache.qpid.server.protocol.v1_0.codec.ValueHandler;
import org.apache.qpid.server.protocol.v1_0.type.UnsignedShort;
import org.apache.qpid.server.protocol.v1_0.type.codec.AMQPDescribedTypeRegistry;
import org.apache.qpid.server.protocol.v1_0.type.transport.ConnectionError;
import org.apache.qpid.server.protocol.v1_0.type.transport.Error;
import org.apache.qpid.test.utils.UnitTestBase;

class FrameHandlerTest extends UnitTestBase
{
    private static final int MAX_FRAME_SIZE = 4096;

    private ValueHandler _valueHandler;

    @BeforeAll
    void setUp()
    {
        _valueHandler = new ValueHandler(AMQPDescribedTypeRegistry.newInstance());
    }

    @Test
    void saslHeartbeat()
    {
        final ConnectionHandler connectionHandler = mock(ConnectionHandler.class);
        when(connectionHandler.getMaxFrameSize()).thenReturn(MAX_FRAME_SIZE);
        final FrameHandler handler = new  FrameHandler(_valueHandler, connectionHandler, true);

        final QpidByteBuffer body = QpidByteBuffer.allocate(false, 8);
        body.putInt(8);    // size
        body.put((byte)2); // DOFF
        body.put((byte)1); // AMQP Frame Type
        body.putShort(UnsignedShort.ZERO.shortValue());  // channel
        body.flip();

        handler.parse(body);

        final ArgumentCaptor<Error> errorCaptor = ArgumentCaptor.forClass(Error.class);
        verify(connectionHandler).handleError(errorCaptor.capture());

        final Error error = errorCaptor.getValue();
        assertNotNull(error);
        assertEquals(ConnectionError.FRAMING_ERROR, error.getCondition());
        assertEquals("Empty (heartbeat) frames are not permitted during SASL negotiation", error.getDescription());
    }

    @Test
    void oversizedFrame()
    {
        final ConnectionHandler connectionHandler = mock(ConnectionHandler.class);
        when(connectionHandler.getMaxFrameSize()).thenReturn(MAX_FRAME_SIZE);
        final FrameHandler handler = new FrameHandler(_valueHandler, connectionHandler, true);

        final QpidByteBuffer body = QpidByteBuffer.allocate(false, MAX_FRAME_SIZE + 8);
        body.putInt(body.capacity()); // size
        body.put((byte) 2); // DOFF
        body.put((byte) 1); // AMQP Frame Type
        body.putShort(UnsignedShort.ZERO.shortValue()); // channel
        body.position(body.capacity());
        body.flip();

        handler.parse(body);

        final ArgumentCaptor<Error> errorCaptor = ArgumentCaptor.forClass(Error.class);
        verify(connectionHandler).handleError(errorCaptor.capture());

        final Error error = errorCaptor.getValue();
        assertNotNull(error);
        assertEquals(ConnectionError.FRAMING_ERROR, error.getCondition());
        assertEquals(String.format("specified frame size %s larger than maximum frame header size %s", body.capacity(),
                MAX_FRAME_SIZE), error.getDescription());
    }
}