def test_bitwise_and_failure(self):
"""
Test the bitwise and method with an invalid permission..
Expected result: The method raises an error.
"""
with self.assertRaises(ValueError) as exception_cm:
# noinspection PyTypeChecker
Permission.bitwise_and(Permission.EditGlobalSettings, None, Permission.EditRole)
self.assertEqual('None is not a valid permission', str(exception_cm.exception))
def test_bitwise_and_success(self):
"""
Test the bitwise and method.
Expected result: The method returns the same result as performing the operation manually.
"""
expectation = Permission.EditRole
result = Permission.bitwise_and(Permission.EditRole)
self.assertEqual(expectation, result)
combination = Permission.EditRole | Permission.EditGlobalSettings
expectation = combination & Permission.EditUser
result = Permission.bitwise_and(combination, Permission.EditUser)
self.assertEqual(expectation, result)
combination_1 = Permission.EditGlobalSettings | Permission.EditRole | Permission.EditUser
combination_2 = Permission.EditGlobalSettings | Permission.EditRole
combination_3 = Permission.EditGlobalSettings | Permission.EditUser
expectation = combination_1 & combination_2 & combination_3
result = Permission.bitwise_and(combination_1, combination_2, combination_3)
self.assertEqual(expectation, result)