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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.
*
*/
using NUnit.Framework;
using Apache.Qpid.Buffer;
namespace Apache.Qpid.Buffer.Tests
{
/// <summary>
/// Tests for the SimpleByteBuffer class
/// </summary>
[TestFixture]
public class SimpleByteBufferTests
{
[Test]
public void CanCreateNewBuffer()
{
const int size = 10;
ByteBuffer buffer = ByteBuffer.Allocate(size);
Assert.AreEqual(size, buffer.Capacity);
Assert.AreEqual(0, buffer.Position);
Assert.AreEqual(size, buffer.Remaining);
Assert.AreEqual(true, buffer.HasRemaining);
}
[Test]
public void CanWrapArray()
{
byte[] array = new byte[10];
for ( int i=0; i < array.Length; i++ )
{
array[i] = (byte) i;
}
ByteBuffer buffer = ByteBuffer.Wrap(array);
// the buffer should be the same size,
// and positioned at the end
Assert.AreEqual(array.Length, buffer.Capacity);
Assert.AreEqual(array.Length, buffer.Position);
Assert.AreEqual(array.Length, buffer.Limit);
}
#region Base Read/Write tests
//
// Base Read/Write tests
//
[Test]
public void CanReadWriteBytes()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Rewind();
Assert.AreEqual(0x01, buffer.GetByte());
Assert.AreEqual(0x02, buffer.GetByte());
Assert.AreEqual(0x03, buffer.GetByte());
}
[Test]
[ExpectedException(typeof(BufferUnderflowException))]
public void ThrowOnReadByteWithNoSpace()
{
ByteBuffer buffer = ByteBuffer.Allocate(1);
buffer.Put((byte)0x01);
buffer.GetByte();
}
[Test]
[ExpectedException(typeof(BufferOverflowException))]
public void ThrowOnWriteByteWithNoSpace()
{
ByteBuffer buffer = ByteBuffer.Allocate(1);
buffer.Put((byte)0x01).Put((byte)0x02);
}
#endregion Base Read/Write tests
#region Other Buffer Operations
//
// Other Buffer Operations
//
[Test]
public void CanFlipBuffer()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Flip();
Assert.AreEqual(10, buffer.Capacity);
Assert.AreEqual(3, buffer.Limit);
Assert.AreEqual(0, buffer.Position);
Assert.AreEqual(3, buffer.Remaining);
}
[Test]
public void CanCompactBuffer()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Flip();
buffer.Position = 1;
buffer.Compact();
Assert.AreEqual(10, buffer.Capacity);
Assert.AreEqual(10, buffer.Limit);
Assert.AreEqual(2, buffer.Position);
Assert.AreEqual(8, buffer.Remaining);
buffer.Rewind();
Assert.AreEqual((byte)0x02, buffer.GetByte());
Assert.AreEqual((byte)0x03, buffer.GetByte());
}
[Test]
public void CanClearBuffer()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Flip();
buffer.Position = 2;
buffer.Clear();
Assert.AreEqual(10, buffer.Capacity);
Assert.AreEqual(10, buffer.Limit);
Assert.AreEqual(0, buffer.Position);
Assert.AreEqual(10, buffer.Remaining);
}
[Test]
public void CanExpandBuffer()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Flip();
buffer.Position = 2;
int pos = buffer.Position;
buffer.Expand(20);
Assert.AreEqual(pos, buffer.Position);
Assert.IsTrue(buffer.Remaining >= 20);
buffer.Rewind();
Assert.AreEqual(0x01, buffer.GetByte());
}
[Test]
public void CanAutoExpand()
{
ByteBuffer buffer = ByteBuffer.Allocate(2);
buffer.IsAutoExpand = true;
// should cause autoexpand
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
Assert.IsTrue(buffer.Capacity > 2);
}
[Test]
public void CanGetArray()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer.Flip();
byte[] array = buffer.Array;
for ( int i=0; i < buffer.Limit; i++ )
{
Assert.AreEqual(buffer.GetByte(), array[i]);
}
}
[Test]
public void CanSkip()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Skip(4);
Assert.AreEqual(4, buffer.Position);
}
#endregion // Base Read/Write tests
#region Typed Accessors
//
// Typed Accessors
//
[Test]
public void CanReadWriteSByte()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
sbyte value = -12;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetSByte());
}
[Test]
public void CanReadWriteUInt16()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
ushort value = 41233;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetUInt16());
}
[Test]
public void CanReadWriteInt16()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
short value = -21233;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetInt16());
}
[Test]
public void CanReadWriteUInt32()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
uint value = 41233211;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetUInt32());
}
[Test]
public void CanReadWriteInt32()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
int value = -22221233;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetInt32());
}
[Test]
public void CanReadWriteUInt64()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
ulong value = 41233218871;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetUInt64());
}
[Test]
public void CanReadWriteInt64()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
long value = -9887335411;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetInt64());
}
[Test]
public void CanReadWriteFloat()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
float value = -1.2331f;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetFloat());
}
[Test]
public void CanReadWriteDouble()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
double value = -1.2331E12;
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetDouble());
}
[Test]
public void CanReadWriteChar()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
char value = 'H';
buffer.Put(value);
buffer.Flip();
Assert.AreEqual(value, buffer.GetChar());
}
[Test]
public void CanReadWriteByteArray()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put(new byte[] { 0x01, 0x02, 0x03});
buffer.Flip();
byte[] data = new byte[3];
buffer.GetBytes(data);
Assert.AreEqual(0x01, data[0]);
Assert.AreEqual(0x02, data[1]);
Assert.AreEqual(0x03, data[2]);
}
[Test]
public void CanReadWriteByteArrayWithOffset()
{
ByteBuffer buffer = ByteBuffer.Allocate(10);
buffer.Put(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 }, 1, 4);
buffer.Flip();
byte[] data = new byte[3];
buffer.GetBytes(data, 2, 1);
Assert.AreEqual(0x00, data[0]);
Assert.AreEqual(0x00, data[1]);
Assert.AreEqual(0x02, data[2]);
}
[Test]
public void CanWriteByteBuffer()
{
ByteBuffer buffer1 = ByteBuffer.Allocate(10);
buffer1.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
buffer1.Flip();
ByteBuffer buffer2 = ByteBuffer.Allocate(10);
buffer2.Put(buffer1);
buffer2.Flip();
Assert.AreEqual(buffer1.Limit, buffer2.Limit);
Assert.AreEqual(0x01, buffer2.GetByte());
}
#endregion // Typed Accessors
} // class SimpleByteBufferTests
}
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