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"""Unit tests for buffer objects.
For now, tests just new or changed functionality.
"""
import unittest
from test import test_support
class BufferTests(unittest.TestCase):
def test_extended_getslice(self):
# Test extended slicing by comparing with list slicing.
s = "".join(chr(c) for c in list(range(255, -1, -1)))
b = buffer(s)
indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
for start in indices:
for stop in indices:
# Skip step 0 (invalid)
for step in indices[1:]:
self.assertEqual(b[start:stop:step],
s[start:stop:step])
def test_main():
with test_support._check_py3k_warnings(("buffer.. not supported",
DeprecationWarning)):
test_support.run_unittest(BufferTests)
if __name__ == "__main__":
test_main()
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