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Contents
"""Tests for the binary exercise
Implementation note:
If the argument to parse_binary isn't a valid binary number the
function should raise a ValueError with a meaningful error message.
"""
import unittest
from binary import parse_binary
class BinaryTests(unittest.TestCase):
def test_binary_1_is_decimal_1(self):
self.assertEqual(parse_binary("1"), 1)
def test_binary_10_is_decimal_2(self):
self.assertEqual(parse_binary("10"), 2)
def test_binary_11_is_decimal_3(self):
self.assertEqual(parse_binary("11"), 3)
def test_binary_100_is_decimal_4(self):
self.assertEqual(parse_binary("100"), 4)
def test_binary_1001_is_decimal_9(self):
self.assertEqual(parse_binary("1001"), 9)
def test_binary_11010_is_decimal_26(self):
self.assertEqual(parse_binary("11010"), 26)
def test_binary_10001101000_is_decimal_1128(self):
self.assertEqual(parse_binary("10001101000"), 1128)
def test_invalid_binary_text_only(self):
with self.assertRaisesWithMessage(ValueError):
parse_binary("carrot")
def test_invalid_binary_number_not_base2(self):
with self.assertRaisesWithMessage(ValueError):
parse_binary("102011")
def test_invalid_binary_numbers_with_text(self):
with self.assertRaisesWithMessage(ValueError):
parse_binary("10nope")
def test_invalid_binary_text_with_numbers(self):
with self.assertRaisesWithMessage(ValueError):
parse_binary("nope10")
# 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()
Version data entries
64 entries across 64 versions & 1 rubygems