def test_valid_username_long(self):
"""
Tests User.valid_username for input that's too long
"""
z = "x" * (MAX_USERNAME_LENGTH + 1)
self.assertEqual(User.valid_username(z), False)
def test_valid_username_empty(self):
"""
Tests User.valid_username for a an empty string input
"""
self.assertEqual(User.valid_username(""), False)
def test_valid_username_normal(self):
"""
Tests User.valid_username for a normal sized input
"""
z = "x" * MAX_USERNAME_LENGTH
self.assertEqual(User.valid_username(z), True)
def test_valid_username_none(self):
"""
Tests User.valid_username for a NoneType input
"""
self.assertEqual(User.valid_username(None), False)
