37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
import unittest
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################################################################################
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# Implementation
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################################################################################
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# get_permutations :: String -> Set(String)
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def get_permutations(string):
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pass
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################################################################################
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# Tests
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################################################################################
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class Test(unittest.TestCase):
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def test_empty_string(self):
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actual = get_permutations('')
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expected = set([''])
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self.assertEqual(actual, expected)
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def test_one_character_string(self):
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actual = get_permutations('a')
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expected = set(['a'])
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self.assertEqual(actual, expected)
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def test_two_character_string(self):
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actual = get_permutations('ab')
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expected = set(['ab', 'ba'])
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self.assertEqual(actual, expected)
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def test_three_character_string(self):
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actual = get_permutations('abc')
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expected = set(['abc', 'acb', 'bac', 'bca', 'cab', 'cba'])
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self.assertEqual(actual, expected)
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unittest.main(verbosity=2)
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