125 lines
3.6 KiB
Python
125 lines
3.6 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(number([" _ ",
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"| |",
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"|_|",
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" "]), '0')
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def test_1(self):
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self.assertEqual(number([" ",
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" |",
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" |",
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" "]), '1')
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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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with self.assertRaises(ValueError):
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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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with self.assertRaises(ValueError):
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number([" ",
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" _|",
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" X|"])
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def test_grid0(self):
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self.assertEqual(grid('0'), [" _ ",
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"| |",
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"|_|",
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" "])
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def test_grid1(self):
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self.assertEqual(grid('1'), [" ",
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" |",
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" |",
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" "])
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def test_0010110(self):
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self.assertEqual(
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number([
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" _ _ _ _ ",
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"| || | || | | || |",
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"|_||_| ||_| | ||_|",
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" "
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]), '0010110')
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def test_3186547290(self):
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digits = '3186547290'
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self.assertEqual(
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number([
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" _ _ _ _ _ _ _ _ ",
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" _| ||_||_ |_ |_| | _||_|| |",
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" _| ||_||_| _| | ||_ _||_|",
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" "
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]), digits)
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def test_Lost(self):
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digits = '4815162342'
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self.assertEqual(
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number([
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" _ _ _ _ _ _ ",
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"|_||_| ||_ ||_ _| _||_| _|",
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" ||_| | _| ||_||_ _| ||_ ",
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" "
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]), digits)
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def test_garble_middle(self):
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self.assertEqual(
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number([
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" _ _ _ ",
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" | _| ||_||_ ",
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" ||_ _| | _|",
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" "
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]), '12?45')
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def test_grid3186547290(self):
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digits = '3186547290'
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self.assertEqual(
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grid(digits), [
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" _ _ _ _ _ _ _ _ ",
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" _| ||_||_ |_ |_| | _||_|| |",
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" _| ||_||_| _| | ||_ _||_|",
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" "
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])
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def test_invalid_grid(self):
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with self.assertRaises(ValueError):
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grid('123a')
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if __name__ == '__main__':
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unittest.main()
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