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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.qpid.management.domain.model;
import java.nio.ByteBuffer;
import java.util.LinkedList;
import java.util.List;
import junit.framework.TestCase;
import org.apache.qpid.management.domain.model.type.Uint64;
import org.apache.qpid.transport.codec.BBDecoder;
public class OptionalPropertiesTest extends TestCase
{
public void testDecoderStateChange()
{
QpidProperty property = new QpidProperty();
assertSame(
"Default decoder for properties is the one for mandatory properties.",
property._mandatoryPropertyDecoder,
property._decoder);
property.markAsOptional(1);
assertSame(
"After a property has been marked as optional the corresponding decoder must be installed.",
property._optionalPropertyDecoder,
property._decoder);
}
/**
* Tests the execution of the decode() method when the current property is optional but in the presence bitmask
* there's no the corresponding bit set.
*
* <br>precondition : property is optional and corresponding presence bit is not set.
* <br>postcondition : result must be null.
*/
public void testDecodeValueWithOptionalPropertyAndMissingValue()
{
byte [] presenceBytes = {2};
QpidProperty property = new QpidProperty();
// We don't need a decoder so in order to be sure that it won't be invoked set it to null.
BBDecoder nullDecoder = null;
for (int i = 0; i < 8; i++)
{
// Property number 1 is declaring a value so skip it!
if (i != 1)
{
property.markAsOptional(i);
assertNull(property.decodeValue(nullDecoder, presenceBytes));
}
}
}
/**
* Tests the execution of the decode() method when the current property is optional but in the presence bitmask
* there's no the corresponding bit set.
*
* <br>precondition : property is optional and corresponding presence bit is not set.
* <br>postcondition : result must be null.
*/
public void testDecodeValueWithOptionalPropertyAndDeclaredValue()
{
byte [] presenceBytes = {4};
Long _44 = new Long(44);
QpidProperty property = new QpidProperty();
property.setType(new Uint64());
property.markAsOptional(2);
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.putLong(_44);
buffer.rewind();
BBDecoder decoder = new BBDecoder();
decoder.init(buffer);
assertEquals(_44,property.decodeValue(decoder, presenceBytes));
}
/**
* Tests the execution of the decode() method with a real scenario where there are mandatory and optional
* properties.
*/
public void testDecodeValueWithOptionalAndMandatoryProperties()
{
// With this bitset :
//
// 1th opt property is null;
// 2th opt property is null;
// 3th opt property is not null;
// 4th opt property is null;
// 5th opt propertyis null;
// 6th opt property is null;
// 7th opt property is null;
// 8th opt property is not null;
byte [] presenceBytes = {4,1};
List<QpidProperty> properties = new LinkedList<QpidProperty>();
properties.add(createProperty(false, -1));
properties.add(createProperty(false, -1));
properties.add(createProperty(true, 0));
properties.add(createProperty(false, -1));
properties.add(createProperty(false, -1));
properties.add(createProperty(true, 1));
properties.add(createProperty(false, -1));
properties.add(createProperty(false, -1));
properties.add(createProperty(true, 2));
properties.add(createProperty(true, 3));
properties.add(createProperty(true, 4));
properties.add(createProperty(true, 5));
properties.add(createProperty(true, 6));
properties.add(createProperty(true, 7));
properties.add(createProperty(false, -1));
properties.add(createProperty(true, 8));
Long expectedResults [] = {
1L, // p1
22L, // p2
null, // p3
232L, // p4
211L, // p5
null, // p6
232L, // p7
211L, // p8
999L, // p9
null, // p10
null, // p11
null, // p12
null, // p13
null, // p14
626L, // p15
969L // p16
};
ByteBuffer buffer = ByteBuffer.allocate(expectedResults.length * 8);
for (Long expected : expectedResults)
{
if (expected != null)
{
buffer.putLong(expected);
}
}
buffer.rewind();
BBDecoder decoder = new BBDecoder();
decoder.init(buffer);
int index = 0;
for (QpidProperty property : properties)
{
assertEquals(expectedResults[index++],property.decodeValue(decoder, presenceBytes));
}
}
private QpidProperty createProperty(boolean isOptional, int optionalIndex)
{
QpidProperty property = new QpidProperty();
property.setType(new Uint64());
if (isOptional)
{
property.markAsOptional(optionalIndex);
}
return property;
}
}
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