public void Deque_RemoveAtBack_MaintainsOrder()
{
Deque <int> q = new Deque <int>(new[] { 1, 2, 3, 4, 5 });
q.RemoveAt(4);
Assert.AreEqual(4, q.Count, "Deque should remember its items");
Assert.IsTrue(q.SequenceEqual(new[] { 1, 2, 3, 4 }), "Deque should remember its items");
}
public void RemoveAt_LastIndex_IsSameAsRemoveFromBack()
{
var deque1 = new Deque <int>(new[] { 1, 2 });
var deque2 = new Deque <int>(new[] { 1, 2 });
deque1.RemoveAt(1);
deque2.RemoveFromBack();
Assert.Equal(deque1, deque2);
}
public void RemoveAt_Index0_IsSameAsRemoveFromFront()
{
var deque1 = new Deque <int>(new[] { 1, 2 });
var deque2 = new Deque <int>(new[] { 1, 2 });
deque1.RemoveAt(0);
deque2.RemoveFromFront();
Assert.Equal(deque1, deque2);
}
public void RemoveAt_RemovesElementAtIndex()
{
var deque = new Deque <int>(new[] { 1, 2, 3 });
deque.RemoveFromBack();
deque.AddToFront(0);
deque.RemoveAt(1);
Assert.Equal(new[] { 0, 2 }, deque);
}
public void RemoveAt_IndexTooLarge_ActsLikeList()
{
var list = new List <int>(new[] { 1, 2, 3 });
Assert.Throws <ArgumentOutOfRangeException>("index", () => list.RemoveAt(list.Count));
var deque = new Deque <int>(new[] { 1, 2, 3 });
Assert.Throws <ArgumentOutOfRangeException>("index", () => deque.RemoveAt(deque.Count));
}
public void RemoveAt_NegativeIndex_ActsLikeList()
{
var list = new List <int>(new[] { 1, 2, 3 });
Assert.Throws <ArgumentOutOfRangeException>("index", () => list.RemoveAt(-1));
var deque = new Deque <int>(new[] { 1, 2, 3 });
Assert.Throws <ArgumentOutOfRangeException>("index", () => deque.RemoveAt(-1));
}
