108 lines
3.8 KiB
Python
108 lines
3.8 KiB
Python
"""Tests for the ocr-numbers exercise
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Implementation note:
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Both ocr.grid and ocr.number should validate their input
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and raise ValueErrors with meaningful error messages
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if necessary.
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"""
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import unittest
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from ocr_numbers import grid, number
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class OcrTest(unittest.TestCase):
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def test_0(self):
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self.assertEqual('0', number([" _ ",
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"| |",
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"|_|",
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" "]))
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def test_1(self):
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self.assertEqual('1', number([" ",
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" |",
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" |",
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" "]))
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def test_garbage(self):
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self.assertEqual('?', number([" _ ",
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" _|",
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" |",
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" "]))
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def test_last_line_nonblank(self):
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self.assertEqual('?', number([" ",
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" |",
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" |",
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"| |"]))
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def test_unknown_char(self):
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self.assertEqual('?', number([" - ",
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" _|",
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" X|",
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" "]))
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def test_too_short_row(self):
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self.assertRaises(ValueError, number, [" ",
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" _|",
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" |",
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" "])
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def test_insufficient_rows(self):
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self.assertRaises(ValueError, number, [" ",
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" _|",
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" X|"])
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def test_grid0(self):
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self.assertEqual([" _ ",
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"| |",
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"|_|",
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" "], grid('0'))
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def test_grid1(self):
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self.assertEqual([" ",
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" |",
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" |",
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" "], grid('1'))
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def test_0010110(self):
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self.assertEqual('0010110', number([" _ _ _ _ ",
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"| || | || | | || |",
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"|_||_| ||_| | ||_|",
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" "]))
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def test_3186547290(self):
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digits = '3186547290'
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self.assertEqual(digits, number([" _ _ _ _ _ _ _ _ ",
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" _| ||_||_ |_ |_| | _||_|| |",
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" _| ||_||_| _| | ||_ _||_|",
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" "]))
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def test_Lost(self):
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digits = '4815162342'
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self.assertEqual(digits, number([" _ _ _ _ _ _ ",
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"|_||_| ||_ ||_ _| _||_| _|",
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" ||_| | _| ||_||_ _| ||_ ",
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" "]))
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def test_garble_middle(self):
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self.assertEqual('12?45', number([" _ _ _ ",
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" | _| ||_||_ ",
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" ||_ _| | _|",
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" "]))
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def test_grid3186547290(self):
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digits = '3186547290'
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self.assertEqual([" _ _ _ _ _ _ _ _ ",
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" _| ||_||_ |_ |_| | _||_|| |",
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" _| ||_||_| _| | ||_ _||_|",
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" "], grid(digits))
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def test_invalid_grid(self):
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self.assertRaises(ValueError, grid, '123a')
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if __name__ == '__main__':
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unittest.main()
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