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largest-series-product corner cases #283

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Merged
merged 2 commits into from
Jan 26, 2016
Merged

largest-series-product corner cases #283

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05b29a6
largest-series-product: Test all combinations of corner cases
petertseng Jan 23, 2016
46f1a4d
largest-series-product: Add cases where all spans contain a 0
petertseng Jan 23, 2016
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15 changes: 14 additions & 1 deletion largest-series-product/largest_series_product_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -34,13 +34,26 @@ def test_big_number(self):
series = "52677741234314237566414902593461595376319419139427"
self.assertEqual(28350, largest_product(series, 6))

def test_identity(self):
def test_string_with_all_zeroes(self):
self.assertEqual(0, largest_product("0000", 2))

def test_string_where_all_spans_contain_zero(self):
self.assertEqual(0, largest_product("99099", 3))

def test_identity_with_empty_string(self):
self.assertEqual(1, largest_product("", 0))

def test_identity_with_nonempty_string(self):
self.assertEqual(1, largest_product("123", 0))

def test_slices_bigger_than_number(self):
with self.assertRaises(ValueError):
largest_product("012", 4)

def test_nonzero_slice_size_and_empty_string(self):
with self.assertRaises(ValueError):
largest_product("", 1)


if __name__ == '__main__':
unittest.main()