public void RemoveFromTailTest()
{
var rnd = new Random();
var buffer = new CircularBuffer<int>(2);
var head = rnd.Next();
var tail = rnd.Next();
buffer.AddToTail(tail);
buffer.AddToHead(head);
Assert.That(buffer.Head, Is.EqualTo(head), "Invalid head value");
Assert.That(buffer.Tail, Is.EqualTo(tail), "Invalid tail value");
Assert.That(buffer.Length, Is.EqualTo(2), "Invalid Length value");
Assert.That(buffer.RemoveFromTail(), Is.EqualTo(tail), "Step 1");
Assert.That(buffer.RemoveFromTail(), Is.EqualTo(head), "Step 2");
Assert.That(buffer.IsEmpty, Is.True, "Buffer should be empty");
Assert.Throws(typeof(InvalidOperationException), () => buffer.RemoveFromTail());
}