public void CanInitializeWithFirstELm()
{
Node nodeFirst = new Node("first");
QueueWithStacks queue = new QueueWithStacks(nodeFirst);
Assert.Equal(nodeFirst, queue.Peek());
}
public void CanEnqueueSecondElm()
{
Node nodeFirst = new Node("first");
Node nodeSecond = new Node("second");
QueueWithStacks queue = new QueueWithStacks(nodeFirst);
queue.Enqueue(nodeSecond);
Assert.Equal(nodeFirst, queue.Peek());
Assert.Equal(2, queue.Length);
}
public void should_peek_fifo()
{
// Arrange
var queue = new QueueWithStacks <int>();
queue.Add(42);
queue.Add(43);
// Assert
queue.Peek().Should().Be(42);
}
public void Peek_bottom_of_queue()
{
// Arrange
QueueWithStacks <int> queue = new QueueWithStacks <int>();
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
queue.Enqueue(4);
queue.Enqueue(5);
// Assert
Assert.Equal(1, queue.Peek());
}