public void CanPeekIntoQueueToSeeNextItemToDeque()
{
var queue = new GenericQueueFromLinkedListImplementation <int>(new Node <int>(8));
Assert.Equal(8, queue.Peek.Value);
}
public void QueueEnqueuesCorrectly()
{
var queue = new GenericQueueFromLinkedListImplementation <int>();
queue.Enqueue(8);
queue.Enqueue(new Node <int>(20));
Assert.Equal(2, queue.Count);
}
public void QueueDequeuesCorrectly()
{
var queue = new GenericQueueFromLinkedListImplementation <int>(new Node <int>(8));
queue.Enqueue(9);
queue.Enqueue(19);
Assert.Equal(8, queue.Dequeue().Value);
}
public void QueueStartsOffEmpty()
{
var queue = new GenericQueueFromLinkedListImplementation <int>();
Assert.Equal(0, queue.Count);
}
public void QueueReturnsNullIfPeekingIntoAnEmptyQueue()
{
var queue = new GenericQueueFromLinkedListImplementation <int>();
Assert.Null(queue.Peek);
}
public void QueueThrowsArgumentExceptionWhenDequeuingFromAnEmptyQueue()
{
var queue = new GenericQueueFromLinkedListImplementation <int>();
Assert.Throws <ArgumentException>(() => queue.Dequeue());
}
public void QueueStartsOffWithOneItem()
{
var queue = new GenericQueueFromLinkedListImplementation <int>(new Node <int>(8));
Assert.Equal(1, queue.Count);
}
