def test_validate_code_unknown(self):
"""
Using an unknown error code number fails.
"""
self.assertFalse(validate_code(0))
def test_validate_code_wrong_type(self):
"""
Error codes are integers.
"""
self.assertFalse(validate_code('1'))
def test_validate_code(self):
"""
The good error code passes.
"""
self.assertTrue(validate_code(1))