def test_find(self):
ll = LinkedList(['A', 'B', 'C'])
assert ll.find(lambda item: item == 'B') == 'B' # Match equality
assert ll.find(lambda item: item < 'B') == 'A' # Match less than
assert ll.find(lambda item: item > 'B') == 'C' # Match greater than
assert ll.find(lambda item: item == 'X') is None # No matching item
def test_find(self):
ll = LinkedList(['A', 'B', 'C'])
assert ll.find(lambda item: item == 'B') == 'B'
assert ll.find(lambda item: item < 'B') == 'A'
assert ll.find(lambda item: item > 'B') == 'C'
assert ll.find(lambda item: item == 'X') is None