public void Dequeue_UntilEmptyQueue_ReturnsItemsInQueue()
{
var queue = new FixedBasedQueue <int>(2);
var result = queue.Enqueue(10);
result = queue.Enqueue(100);
var item = queue.Dequeue();
//dequeued item should be 10
Assert.IsTrue(item == 10);
//current size should be 1;
Assert.IsTrue(queue.CurrentSize == 1);
item = queue.Dequeue();
//dequeued item should be 100
Assert.IsTrue(item == 100);
//current size should be 0 after dequeuing 100
Assert.IsTrue(queue.CurrentSize == 0);
//queue should be empty
Assert.IsTrue(queue.IsEmpty() == true);
}
public void Dequeue_EmptyQueue_ReturnsDefaultValue()
{
var intQueue = new FixedBasedQueue <int>();
var intQueueItem = intQueue.Dequeue();
//check to see if the int item returned is the default value of int which is 0
Assert.IsTrue(intQueueItem == default(int));
var stringQueue = new FixedBasedQueue <string>();
var stringQueueItem = stringQueue.Dequeue();
//check to see if the string item returned is the default value of string which is null
Assert.IsTrue(stringQueueItem == default(string));
}
public void Deqeue_SingleElement_ReturnsItemInQueue()
{
var queue = new FixedBasedQueue <int>();
var result = queue.Enqueue(10);
var item = queue.Dequeue();
//current size should be 0;
Assert.IsTrue(queue.CurrentSize == 0);
//result should be true of the En-queuing
Assert.IsTrue(result == true);
//dequeued item should be 10
Assert.IsTrue(item == 10);
}