28 lines
804 B
Python
28 lines
804 B
Python
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import unittest
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from example import binary_search
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class BinarySearchTests(unittest.TestCase):
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def test_raises_error_if_list_is_not_sorted(self):
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self.assertRaises(ValueError, binary_search, [44, 5, 2, 1, 4], 6)
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def test_raises_error_if_list_is_empty(self):
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self.assertRaises(ValueError, binary_search, [], 1)
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def test_list_item_not_found(self):
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self.assertEqual("Item not found.",
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binary_search([1, 2, 3, 4, 5, 6], 23))
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def test_list_item_found(self):
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self.assertEqual(3, binary_search([1, 2, 3, 4, 5, 6, 7, 8], 4))
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def test_list_item_found_larger_list(self):
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self.assertEqual(7, binary_search(
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[1, 5, 6, 7, 8, 9, 12, 14, 16, 22, 47, 100, 123], 14))
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if __name__ == '__main__':
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unittest.main()
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