Files
exercism/python/grains/grains_test.py
2019-07-17 16:13:42 -05:00

64 lines
1.7 KiB
Python

import unittest
from grains import square, total
# Tests adapted from `problem-specifications//canonical-data.json` @ v1.2.0
class GrainsTest(unittest.TestCase):
def test_square_1(self):
self.assertEqual(square(1), 1)
def test_square_2(self):
self.assertEqual(square(2), 2)
def test_square_3(self):
self.assertEqual(square(3), 4)
def test_square_4(self):
self.assertEqual(square(4), 8)
def test_square_16(self):
self.assertEqual(square(16), 32768)
def test_square_32(self):
self.assertEqual(square(32), 2147483648)
def test_square_64(self):
self.assertEqual(square(64), 9223372036854775808)
def test_square_0_raises_exception(self):
with self.assertRaisesWithMessage(ValueError):
square(0)
with self.assertRaisesWithMessage(ValueError):
total(0)
def test_square_negative_raises_exception(self):
with self.assertRaisesWithMessage(ValueError):
square(-1)
with self.assertRaisesWithMessage(ValueError):
total(-1)
def test_square_gt_64_raises_exception(self):
with self.assertRaisesWithMessage(ValueError):
square(65)
with self.assertRaisesWithMessage(ValueError):
total(65)
def test_total(self):
self.assertEqual(total(64), 18446744073709551615)
# Utility functions
def setUp(self):
try:
self.assertRaisesRegex
except AttributeError:
self.assertRaisesRegex = self.assertRaisesRegexp
def assertRaisesWithMessage(self, exception):
return self.assertRaisesRegex(exception, r".+")
if __name__ == '__main__':
unittest.main()