def test_solution_0():
l1 = add_two_numbers.ListNode(1)
l2 = add_two_numbers.ListNode(2)
s = add_two_numbers.Solution()
res = s.addTwoNumbers(l1, l2)
assert res.val == 3
assert res.next == None
def test_solution_2():
l1 = add_two_numbers.ListNode(5)
l2 = add_two_numbers.ListNode(2)
l3 = add_two_numbers.ListNode(7)
l4 = add_two_numbers.ListNode(4)
l1.next = l2
l3.next = l4
s = add_two_numbers.Solution()
res = s.addTwoNumbers(l1, l3)
assert res.val == 2
assert res.next.val == 7
assert res.next.next == None
def test_add_two_numbers():
n1 = add_two_numbers.ListNode(2)
n2 = add_two_numbers.ListNode(4)
n3 = add_two_numbers.ListNode(3)
n1.next = n2
n2.next = n3
n4 = add_two_numbers.ListNode(5)
n5 = add_two_numbers.ListNode(6)
n6 = add_two_numbers.ListNode(4)
n4.next = n5
n5.next = n6
n7 = add_two_numbers.ListNode(7)
n8 = add_two_numbers.ListNode(0)
n9 = add_two_numbers.ListNode(8)
n7.next = n8
n8.next = n9
assert add_two_numbers.Solution().add_two_numbers(n1, n4).val == n7.val
assert add_two_numbers.Solution().add_two_numbers(
n1, n4).next.val == n7.next.val
assert add_two_numbers.Solution().add_two_numbers(
n1, n4).next.next.val == n7.next.next.val
def test_solution_4():
l1 = add_two_numbers.ListNode(5)
l2 = add_two_numbers.ListNode(7)
l3 = add_two_numbers.ListNode(7)
l4 = add_two_numbers.ListNode(4)
l5 = add_two_numbers.ListNode(4)
l6 = add_two_numbers.ListNode(4)
l1.next = l2
l3.next = l4
l4.next = l5
l5.next = l6
s = add_two_numbers.Solution()
res = s.addTwoNumbers(l1, l3)
assert res.val == 2
assert res.next.val == 2
assert res.next.next.val == 5
assert res.next.next.next.val == 4
assert res.next.next.next.next == None
def from_list(cls, to_be_linked: list) -> add_two_numbers.ListNode:
if not to_be_linked:
return None
return add_two_numbers.ListNode(to_be_linked[0],
cls.from_list(to_be_linked[1:]))