#!/usr/bin/python3
# -*- coding: utf-8 -*-

import unittest


# %% Example 2: add
def add(x: float, y: float) -> float:
    return x + y


class SimpleTest(unittest.TestCase):
    def test_add1(self) -> None:
        self.assertEquals(add(4, 5), 9)


if __name__ == "__main__":
    # exits after tests with return code for pass/fail
    unittest.main(verbosity=2)