def test_palindrome_invalid_types():
invalid = [("123", "456", "789"), (6, "1", "3"), {
1: "123"
}, None, {123, 123, 123}, True, False]
for value in invalid:
with pytest.raises(TypeError):
is_palindrome(value)
def test_palindrome_valid():
assert is_palindrome('111')
assert is_palindrome('malayalam')
assert is_palindrome('liril')
def test_palindrome_invalid():
assert not is_palindrome("something")
assert not is_palindrome("everything")
assert not is_palindrome("nothing")