53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
"""Tests for the octal exercise
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Implementation note:
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If the string supplied to parse_octal cannot be parsed as an octal number
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your program should raise a ValueError with a meaningful error message.
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"""
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import unittest
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from octal import parse_octal
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class OctalTest(unittest.TestCase):
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def test_octal_1_is_decimal_1(self):
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self.assertEqual(parse_octal("1"), 1)
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def test_octal_10_is_decimal_8(self):
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self.assertEqual(parse_octal("10"), 8)
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def test_octal_17_is_decimal_15(self):
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self.assertEqual(parse_octal("17"), 15)
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def test_octal_130_is_decimal_88(self):
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self.assertEqual(parse_octal("130"), 88)
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def test_octal_2047_is_decimal_1063(self):
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self.assertEqual(parse_octal("2047"), 1063)
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def test_octal_1234567_is_decimal_342391(self):
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self.assertEqual(parse_octal("1234567"), 342391)
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def test_8_is_seen_as_invalid(self):
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with self.assertRaisesWithMessage(ValueError):
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parse_octal("8")
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def test_invalid_octal_is_recognized(self):
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with self.assertRaisesWithMessage(ValueError):
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parse_octal("carrot")
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def test_6789_is_seen_as_invalid(self):
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with self.assertRaisesWithMessage(ValueError):
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parse_octal("6789")
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def test_valid_octal_formatted_string_011_is_decimal_9(self):
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self.assertEqual(parse_octal("011"), 9)
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# Utility functions
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def assertRaisesWithMessage(self, exception):
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return self.assertRaisesRegex(exception, r".+")
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if __name__ == '__main__':
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unittest.main()
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