public void CircularBuffer_Revert()
{
CircularBuffer<byte> cb = new CircularBuffer<byte>(50);
// Move the pointer to the middle
cb.Produce(25);
cb.Consume(25);
// Now allocate all space
cb.Produce(25);
cb.Produce(25);
Assert.AreEqual(25, cb.Start);
Assert.AreEqual(25, cb.ReadLength);
Assert.AreEqual(25, cb.End);
Assert.AreEqual(0, cb.WriteLength);
cb.Revert(5);
Assert.AreEqual(25, cb.Start);
Assert.AreEqual(25, cb.ReadLength);
Assert.AreEqual(20, cb.End);
Assert.AreEqual(5, cb.WriteLength);
cb.Revert(20);
Assert.AreEqual(25, cb.Start);
Assert.AreEqual(25, cb.ReadLength);
Assert.AreEqual(0, cb.End);
Assert.AreEqual(25, cb.WriteLength);
cb.Revert(20);
Assert.AreEqual(25, cb.Start);
Assert.AreEqual(5, cb.ReadLength);
Assert.AreEqual(30, cb.End);
Assert.AreEqual(20, cb.WriteLength);
}