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 SnocTest()
{
var queue = HoodMelvilleQueue <string> .Empty;
queue = HoodMelvilleQueue <string> .Snoc(queue, "One");
Assert.AreEqual("[1, [One], 0, null]", DumpQueue(queue));
queue = HoodMelvilleQueue <string> .Snoc(queue, "Two");
Assert.AreEqual("[1, [One], 1, [Two]]", DumpQueue(queue));
queue = HoodMelvilleQueue <string> .Snoc(queue, "Three");
Assert.AreEqual("[3, [One], 0, null]", DumpQueue(queue));
}
public void SnocEmptyTest()
{
AssertThrows <NullReferenceException>(() => HoodMelvilleQueue <string> .Snoc(null, "Item"));
}