def test_2(self):
result = classify_by_phone_number(records)
assert result[1] == self.expected[1]
def test_len(self):
result = classify_by_phone_number(records)
print(result)
assert len(result) == 6
def test_7(self):
result = classify_by_phone_number(records)
assert result == TestChallenge1.expected