public void DoesPopMethodRetrieveTopWhenStackHasOnlyOneElement()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
stack.Push(1);
int expected = 1;
int actual = ((Node)stack.Pop()).Data;
Assert.AreEqual(expected, actual);
Assert.AreEqual(true, stack.IsEmpty());
Assert.IsNull(stack.Top);
}
public void DoesPopRetrieveTopWhenStackIsNotEmpty()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
stack.Push(1);
stack.Push(2);
int expected = 2;
int actual = ((Node)stack.Pop()).Data;
Assert.AreEqual(expected, actual);
int expected_size = 1;
int actual_size = stack.Size;
Assert.AreEqual(expected_size, actual_size);
int expected_new_top_val = 1;
int actual_new_top_val = ((Node)stack.Top).Data;
Assert.AreEqual(expected_new_top_val, actual_new_top_val);
}
public void DoesPopThrowsExcetionWhenStackIsEmpty()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
Node top = (Node)stack.Pop();
}