public void TailTest()
{
const string data = "One Two Three One Three";
var queue = data.Split().Aggregate(HoodMelvilleQueue <string> .Empty, HoodMelvilleQueue <string> .Snoc);
var tail = HoodMelvilleQueue <string> .Tail(queue);
Assert.AreEqual("[2, [Two, Three], 2, [Three, One]]", DumpQueue(tail));
}
public void EmptyTest()
{
var queue = HoodMelvilleQueue <string> .Empty;
Assert.IsTrue(HoodMelvilleQueue <string> .IsEmpty(queue));
queue = HoodMelvilleQueue <string> .Snoc(queue, "Item");
Assert.IsFalse(HoodMelvilleQueue <string> .IsEmpty(queue));
queue = HoodMelvilleQueue <string> .Tail(queue);
Assert.IsTrue(HoodMelvilleQueue <string> .IsEmpty(queue));
}
public void PushPopTest()
{
const string data = "One Two Three One Three";
var queue = data.Split().Aggregate(HoodMelvilleQueue <string> .Empty, HoodMelvilleQueue <string> .Snoc);
foreach (var expected in data.Split())
{
var actual = HoodMelvilleQueue <string> .Head(queue);
Assert.AreEqual(expected, actual);
queue = HoodMelvilleQueue <string> .Tail(queue);
}
Assert.IsTrue(HoodMelvilleQueue <string> .IsEmpty(queue));
}
public void EmptyTailTest()
{
var queue = HoodMelvilleQueue <string> .Empty;
AssertThrows <ArgumentNullException>(() => HoodMelvilleQueue <string> .Tail(queue));
}