broker-plugins/amqp-0-8-protocol/src/test/java/org/apache/qpid/server/protocol/v0_8/EncodingUtilsTest.java

/*
 * 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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package org.apache.qpid.server.protocol.v0_8;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import org.apache.qpid.server.bytebuffer.QpidByteBuffer;
import org.apache.qpid.test.utils.UnitTestBase;

class EncodingUtilsTest extends UnitTestBase
{
    private static final int BUFFER_SIZE = 10;
    private static final int POOL_SIZE = 20;
    private static final double SPARSITY_FRACTION = 1.0;

    private QpidByteBuffer _buffer;

    @BeforeEach
    void setUp() throws Exception
    {
        QpidByteBuffer.deinitialisePool();
        QpidByteBuffer.initialisePool(BUFFER_SIZE, POOL_SIZE, SPARSITY_FRACTION);
        _buffer = QpidByteBuffer.allocateDirect(BUFFER_SIZE);
    }

    @AfterEach
    void tearDown()
    {
        _buffer.dispose();
        QpidByteBuffer.deinitialisePool();
    }

    @Test
    void readLongAsShortStringWhenDigitsAreSpecified() throws Exception
    {
        _buffer.putUnsignedByte((short)3);
        _buffer.put((byte)'9');
        _buffer.put((byte)'2');
        _buffer.put((byte)'0');
        _buffer.flip();
        assertEquals(920L, EncodingUtils.readLongAsShortString(_buffer), "Unexpected result");
    }

    @Test
    void readLongAsShortStringWhenNonDigitCharacterIsSpecified()
    {
        _buffer.putUnsignedByte((short)2);
        _buffer.put((byte)'1');
        _buffer.put((byte)'a');
        _buffer.flip();
        assertThrows(AMQFrameDecodingException.class,
                () -> EncodingUtils.readLongAsShortString(_buffer),
                "Exception is expected");
    }
}