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import sys
import unittest
from xlrd import biffh
if sys.version_info[0] >= 3:
from io import StringIO
else:
# Python 2.6+ does have the io module, but io.StringIO is strict about
# unicode, which won't work for our test.
from StringIO import StringIO
class TestHexDump(unittest.TestCase):
def test_hex_char_dump(self):
sio = StringIO()
biffh.hex_char_dump(b"abc\0e\01", 0, 6, fout=sio)
s = sio.getvalue()
assert "61 62 63 00 65 01" in s, s
assert "abc~e?" in s, s
if __name__=='__main__':
unittest.main()
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