def test_extract_min_expiration_for_multiple_identical_credentials(self):
input_ = {'test_role1': '{"Expiration": "1970-01-01T00:00:00Z"}',
'test_role2': '{"Expiration": "1970-01-01T00:00:00Z"}'}
expected = "1970-01-01T00:00:00Z"
received = extract_min_expiration(input_)
self.assertEqual(expected, received)
def test_extract_min_expiration_for_single_credential(self):
input_ = {'test_role': '{"Expiration": "1970-01-01T00:00:00Z"}'}
expected = "1970-01-01T00:00:00Z"
received = extract_min_expiration(input_)
self.assertEqual(expected, received)