/// <summary>
/// Decrements the pointer, i.e. sets the previous node as the current.
/// </summary>
public void DecrementPointer()
{
if (this.current.HasPrevious)
{
this.current = this.current.Previous;
}
else
{
throw new InvalidOperationException(
"The pointer can not be decremented below 0.");
}
}
public void LinkTest()
{
ByteNode bn = new ByteNode();
Assert.IsFalse(bn.HasNext);
Assert.IsNull(bn.Next);
Assert.IsFalse(bn.HasPrevious);
Assert.IsNull(bn.Previous);
bn.Next = new ByteNode();
Assert.IsTrue(bn.HasNext);
Assert.IsNotNull(bn.Next);
bn.Next.Previous = bn;
bn = bn.Next;
Assert.IsFalse(bn.HasNext);
Assert.IsNull(bn.Next);
Assert.IsTrue(bn.HasPrevious);
Assert.IsNotNull(bn.Previous);
}
public void SmokeTest()
{
ByteNode bn = new ByteNode();
Assert.AreEqual(0, bn.Value);
bn.IncrementValue();
Assert.AreEqual(1, bn.Value);
Assert.IsFalse(bn.HasNext);
bn.Next = new ByteNode();
Assert.IsTrue(bn.HasNext);
Assert.AreEqual(0, bn.Next.Value);
bn.Next.IncrementValue();
Assert.AreEqual(1, bn.Next.Value);
}
public void ValueTest()
{
ByteNode bn = new ByteNode();
Assert.AreEqual(0, bn.Value);
bn.IncrementValue();
Assert.AreEqual(1, bn.Value);
for (int i = 0; i < 20; i++)
{
bn.IncrementValue();
}
Assert.AreEqual(21, bn.Value);
bn.DecrementValue();
Assert.AreEqual(20, bn.Value);
for (int i = 0; i < 20; i++)
{
bn.DecrementValue();
}
Assert.AreEqual(0, bn.Value);
for (int i = 0; i < byte.MaxValue + 1; i++)
{
bn.IncrementValue();
}
Assert.AreEqual(0, bn.Value);
bn.DecrementValue();
Assert.AreEqual(byte.MaxValue, bn.Value);
}
public ByteNode()
{
this.value = 0;
this.previous = null;
this.next = null;
}
/// <summary>
/// Increments the pointer, i.e. sets the next node as the current.
/// </summary>
public void IncrementPointer()
{
if (this.current.HasNext)
{
this.current = this.current.Next;
}
else
{
try
{
this.AddNode();
this.IncrementPointer();
}
catch (InvalidOperationException ex)
{
throw new OutOfMemoryException(
"Not allowed to allocate more memory!", ex);
}
}
}
public ByteList()
{
this.current = new ByteNode();
this.nodeCounter = 1;
}