def test__BST_remove_list2(xs, ys):
xs = list(set(xs))
bst = BST(xs)
bst.remove_list(ys)
for y in ys:
if y in xs:
xs.remove(y)
assert bst.to_list('inorder') == sorted(xs)
def test__BST_remove_list1(xs, ys):
xs = list(set(xs))
bst = BST(xs)
bst.remove_list(ys)
for y in ys:
assert y not in bst
