public void HeadTest()
{
var stack = CustomStack <string> .Cons("Hello", CustomStack <string> .Empty);
var head = CustomStack <string> .Head(stack);
Assert.AreEqual("Hello", head);
}
public void TailTest()
{
var empty = CustomStack <string> .Empty;
var hello = CustomStack <string> .Cons("Hello", empty);
var world = CustomStack <string> .Cons("World", hello);
var stack = CustomStack <string> .Tail(world);
Assert.AreEqual(hello, stack);
}
public void NotEmptyTest()
{
var stack = CustomStack <string> .Cons("Hello", CustomStack <string> .Empty);
Assert.IsFalse(CustomStack <string> .IsEmpty(stack));
}
