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3cc3531076
* renamed module to extend the acronym * add type hints (will not work with Python less than 3.4) * update docstring * refactor the function * add unittests for the least common squares multiple
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
import unittest
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def find_lcm(first_num: int, second_num: int) -> int:
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"""Find the least common multiple of two numbers.
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Learn more: https://en.wikipedia.org/wiki/Least_common_multiple
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>>> find_lcm(5,2)
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10
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>>> find_lcm(12,76)
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228
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"""
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max_num = first_num if first_num >= second_num else second_num
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common_mult = max_num
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while (common_mult % first_num > 0) or (common_mult % second_num > 0):
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common_mult += max_num
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return common_mult
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class TestLeastCommonMultiple(unittest.TestCase):
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test_inputs = [
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(10, 20),
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(13, 15),
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(4, 31),
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(10, 42),
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(43, 34),
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(5, 12),
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(12, 25),
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(10, 25),
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(6, 9),
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]
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expected_results = [20, 195, 124, 210, 1462, 60, 300, 50, 18]
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def test_lcm_function(self):
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for i, (first_num, second_num) in enumerate(self.test_inputs):
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actual_result = find_lcm(first_num, second_num)
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with self.subTest(i=i):
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self.assertEqual(actual_result, self.expected_results[i])
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if __name__ == "__main__":
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unittest.main()
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