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problem4test.py
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problem4test.py
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# Euler Problem 4 Test
import unittest
import problem4
class TestProblem4(unittest.TestCase):
def test_is_palindrome(self):
self.assertEqual(problem4.is_palindrome('5'), True)
self.assertEqual(problem4.is_palindrome('10'), False)
self.assertEqual(problem4.is_palindrome('11'), True)
self.assertEqual(problem4.is_palindrome('12341899814321'), True)
def test_palindrome_generator(self):
self.assertEqual(list(problem4.palindrome_generator(2)), [2, 1])
self.assertEqual(list(problem4.palindrome_generator(20)),
[11, 9, 8, 7, 6, 5, 4, 3, 2, 1])
self.assertEqual(list(problem4.palindrome_generator(50)),
[44,33,22,11, 9, 8, 7, 6, 5, 4, 3, 2, 1])
self.assertEqual(next(problem4.palindrome_generator(500)), 494)
self.assertEqual(next(problem4.palindrome_generator(7196)), 7117)
self.assertEqual(next(problem4.palindrome_generator(68610)), 68586)
self.assertEqual(next(problem4.palindrome_generator(90009000)), 90000009)
def test_three_digit_products(self):
self.assertEqual(problem4.three_digit_products(10000), (16,625))
self.assertEqual(problem4.three_digit_products(10642), (17,626))
self.assertEqual(problem4.three_digit_products(461579), False)
def test_largest_palindrome_product(self):
self.assertEqual(problem4.largest_palindrome_product(998001), (913,993))
self.assertEqual(problem4.largest_palindrome_product(493394), (547, 902))
if __name__ == '__main__':
unittest.main()