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55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
import unittest
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from run_length_encoding import encode, decode
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# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0
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class RunLengthEncodingTest(unittest.TestCase):
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def test_encode_empty_string(self):
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self.assertMultiLineEqual(encode(''), '')
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def test_encode_single_characters_only_are_encoded_without_count(self):
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self.assertMultiLineEqual(encode('XYZ'), 'XYZ')
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def test_encode_string_with_no_single_characters(self):
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self.assertMultiLineEqual(encode('AABBBCCCC'), '2A3B4C')
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def test_encode_single_characters_mixed_with_repeated_characters(self):
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self.assertMultiLineEqual(
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encode('WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWB'),
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'12WB12W3B24WB')
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def test_encode_multiple_whitespace_mixed_in_string(self):
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self.assertMultiLineEqual(encode(' hsqq qww '), '2 hs2q q2w2 ')
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def test_encode_lowercase_characters(self):
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self.assertMultiLineEqual(encode('aabbbcccc'), '2a3b4c')
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def test_decode_empty_string(self):
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self.assertMultiLineEqual(decode(''), '')
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def test_decode_single_characters_only(self):
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self.assertMultiLineEqual(decode('XYZ'), 'XYZ')
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def test_decode_string_with_no_single_characters(self):
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self.assertMultiLineEqual(decode('2A3B4C'), 'AABBBCCCC')
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def test_decode_single_characters_with_repeated_characters(self):
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self.assertMultiLineEqual(
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decode('12WB12W3B24WB'),
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'WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWB')
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def test_decode_multiple_whitespace_mixed_in_string(self):
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self.assertMultiLineEqual(decode('2 hs2q q2w2 '), ' hsqq qww ')
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def test_decode_lower_case_string(self):
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self.assertMultiLineEqual(decode('2a3b4c'), 'aabbbcccc')
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def test_combination(self):
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self.assertMultiLineEqual(decode(encode('zzz ZZ zZ')), 'zzz ZZ zZ')
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if __name__ == '__main__':
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unittest.main()
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