Write and test the following function:

def array_to_stack(stack, source): """ ------------------------------------------------------- Pushes contents of source onto stack. At finish, source is empty. Last value in source is at bottom of stack, first value in source is on top of stack. Use: array_to_stack(stack, source) ------------------------------------------------------- Parameters: stack - a Stack object (Stack) source - a Python list (list) Returns: None ------------------------------------------------------- """