diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_bytes.py | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py index 210f08c..be95935 100644 --- a/Lib/test/test_bytes.py +++ b/Lib/test/test_bytes.py @@ -163,6 +163,17 @@ class BytesTest(unittest.TestCase): self.assertEqual(b[-5:100], by("world")) self.assertEqual(b[-100:5], by("Hello")) + def test_extended_getslice(self): + # Test extended slicing by comparing with list slicing. + L = list(range(255)) + b = bytes(L) + indices = (0, None, 1, 3, 19, 100, -1, -2, -31, -100) + for start in indices: + for stop in indices: + # Skip step 0 (invalid) + for step in indices[1:]: + self.assertEqual(b[start:stop:step], bytes(L[start:stop:step])) + def test_regexps(self): def by(s): return bytes(map(ord, s)) @@ -239,6 +250,26 @@ class BytesTest(unittest.TestCase): b[3:0] = [42, 42, 42] self.assertEqual(b, bytes([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9])) + def test_extended_set_del_slice(self): + indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300) + for start in indices: + for stop in indices: + # Skip invalid step 0 + for step in indices[1:]: + L = list(range(255)) + b = bytes(L) + # Make sure we have a slice of exactly the right length, + # but with different data. + data = L[start:stop:step] + data.reverse() + L[start:stop:step] = data + b[start:stop:step] = data + self.assertEquals(b, bytes(L)) + + del L[start:stop:step] + del b[start:stop:step] + self.assertEquals(b, bytes(L)) + def test_setslice_trap(self): # This test verifies that we correctly handle assigning self # to a slice of self (the old Lambert Meertens trap). |