public void TestToArray_WithEmptyQueue_ShouldReturn_EmptyArray()
{
DateTime[] dates = new DateTime[0];
var queue = new DoublyLinkedQueue <DateTime>();
var queueToArray = queue.ToArray();
CollectionAssert.AreEqual(dates, queueToArray);
}
public void TestEnqueueDequeue_ShouldReturn_CorrectCount()
{
//Arrange
int number = 1;
var queue = new DoublyLinkedQueue <int>();
//Act
Assert.AreEqual(0, queue.Count);
queue.Enqueue(number);
//Assert
Assert.AreEqual(1, queue.Count);
int expected = queue.Dequeue();
Assert.AreEqual(expected, number);
Assert.AreEqual(0, queue.Count);
}
public void TestToArray_ShouldReturn_ElementsOrderOfQueuing()
{
int[] arrayChe = new[]
{
1337, 666, 420, 69
};
var queue = new DoublyLinkedQueue <int>();
queue.Enqueue(1337);
queue.Enqueue(666);
queue.Enqueue(420);
queue.Enqueue(69);
var arrayBe = queue.ToArray();
CollectionAssert.AreEqual(arrayChe, arrayBe);
}
public void TestEnqueueDequeue_With_SpecificallySizedqueue_ShouldWorkCorrectly()
{
int firstElement = 420;
int secondElement = 69;
var queue = new DoublyLinkedQueue <int>();
Assert.AreEqual(0, queue.Count);
queue.Enqueue(firstElement);
Assert.AreEqual(1, queue.Count);
queue.Enqueue(secondElement);
Assert.AreEqual(2, queue.Count);
var element = queue.Dequeue();
Assert.AreEqual(firstElement, element);
Assert.AreEqual(1, queue.Count);
var anotherElement = queue.Dequeue();
Assert.AreEqual(secondElement, anotherElement);
Assert.AreEqual(0, queue.Count);
}
public void TestEnqueueDequeue_1000Times_ShouldReturn_CorrectCount()
{
var queue = new DoublyLinkedQueue <int>();
Assert.AreEqual(0, queue.Count);
for (int i = 0; i < 1000; i++)
{
queue.Enqueue(i);
Assert.AreEqual(i + 1, queue.Count);
}
int count = queue.Count;
for (int i = 0; i < 1000; i++)
{
int element = queue.Dequeue();
count--;
Assert.AreEqual(i, element);
Assert.AreEqual(count, queue.Count);
}
}
public void TestDequeue_With_Emptyqueue_ShouldThrow()
{
var queue = new DoublyLinkedQueue <int>();
queue.Dequeue();
}
