def test_calc_sum_2():
one = max_path_sum.TreeNode(2)
two = max_path_sum.TreeNode(-1)
three = max_path_sum.TreeNode(-2)
one.left = two
one.right = three
assert 2 == max_path_sum.path_sum(one)
def test_calc_neg_tree():
one = max_path_sum.TreeNode(-2)
two = max_path_sum.TreeNode(-1)
one.left = two
one.right = None
two.left = None
two.right = None
assert -1 == max_path_sum.path_sum(one)
def test_calc_tree():
one = max_path_sum.TreeNode(-1)
two = max_path_sum.TreeNode(2)
three = max_path_sum.TreeNode(3)
four = max_path_sum.TreeNode(-4)
five = max_path_sum.TreeNode(-5)
one.left = two
one.right = three
two.left = four
two.right = five
assert 4 == max_path_sum.path_sum(one)
def test_sum():
one = max_path_sum.TreeNode(1)
two = max_path_sum.TreeNode(2)
three = max_path_sum.TreeNode(3)
four = max_path_sum.TreeNode(4)
five = max_path_sum.TreeNode(-5)
one.left = two
one.right = three
two.left = four
two.right = five
assert 10 == max_path_sum.path_sum(one)
def test_calc_neg():
one = max_path_sum.TreeNode(-2934)
one.left = None
one.right = None
assert -2934 == max_path_sum.path_sum(one)
assert 0 == max_path_sum.path_sum(None)
def test_calc_sum():
one = max_path_sum.TreeNode(-1)
two = max_path_sum.TreeNode(-2)
three = max_path_sum.TreeNode(-3)
one.left = two
one.right = three
four = max_path_sum.TreeNode(1)
five = max_path_sum.TreeNode(3)
two.left = four
two.right = five
six = max_path_sum.TreeNode(-2)
seven = max_path_sum.TreeNode(-1)
four.left = seven
three.left = six
assert 3 == max_path_sum.path_sum(one)