IliyanYakimov

import unittest
import solution


class ExtractTypeTest(unittest.TestCase):
    def test_python(self):
        input = [('p', 1), ('y', 1), ('t', 1),
                 ('h', 1), ('o', 1), ('n', 1)]
        self.assertEqual("python", solution.extract_type(input, str))

IliyanYakimov

import unittest
import solution
 
 
class PowerOfTwoTests(unittest.TestCase):
 
    def test_empty_list(self):
        self.assertFalse(solution.powers_of_two_remain([]))
 
    def test_multiple_numbers_in_list_true(self):