mirror of
https://github.com/Xevion/exercism.git
synced 2025-12-06 11:15:00 -06:00
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
"""Tests for the series exercise
|
|
|
|
Implementation note:
|
|
The slices function should raise a ValueError with a meaningful error
|
|
message if its length argument doesn't fit the series.
|
|
"""
|
|
import unittest
|
|
|
|
from series import slices
|
|
|
|
|
|
# Tests adapted from `problem-specifications//canonical-data.json` @ v1.0.0
|
|
|
|
class SeriesTest(unittest.TestCase):
|
|
def test_slices_of_one_from_one(self):
|
|
self.assertEqual(slices("1", 1), ["1"])
|
|
|
|
def test_slices_of_one_from_two(self):
|
|
self.assertEqual(slices("12", 1), ["1", "2"])
|
|
|
|
def test_slices_of_two(self):
|
|
self.assertEqual(slices("35", 2), ["35"])
|
|
|
|
def test_slices_of_two_overlap(self):
|
|
self.assertEqual(slices("9142", 2), ["91", "14", "42"])
|
|
|
|
def test_slices_can_include_duplicates(self):
|
|
self.assertEqual(slices("777777", 3), ["777", "777", "777", "777"])
|
|
|
|
def test_slice_length_is_too_large(self):
|
|
with self.assertRaisesWithMessage(ValueError):
|
|
slices("12345", 6)
|
|
|
|
def test_slice_length_cannot_be_zero(self):
|
|
with self.assertRaisesWithMessage(ValueError):
|
|
slices("12345", 0)
|
|
|
|
def test_slice_length_cannot_be_negative(self):
|
|
with self.assertRaisesWithMessage(ValueError):
|
|
slices("123", -1)
|
|
|
|
def test_empty_series_is_invalid(self):
|
|
with self.assertRaisesWithMessage(ValueError):
|
|
slices("", 1)
|
|
|
|
# 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()
|