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from test import test_support
import unittest
import codecs
import StringIO
class UTF16Test(unittest.TestCase):
spamle = '\xff\xfes\x00p\x00a\x00m\x00s\x00p\x00a\x00m\x00'
spambe = '\xfe\xff\x00s\x00p\x00a\x00m\x00s\x00p\x00a\x00m'
def test_only_one_bom(self):
_,_,reader,writer = codecs.lookup("utf-16")
# encode some stream
s = StringIO.StringIO()
f = writer(s)
f.write(u"spam")
f.write(u"spam")
d = s.getvalue()
# check whether there is exactly one BOM in it
self.assert_(d == self.spamle or d == self.spambe)
# try to read it back
s = StringIO.StringIO(d)
f = reader(s)
self.assertEquals(f.read(), u"spamspam")
class EscapeDecodeTest(unittest.TestCase):
def test_empty_escape_decode(self):
self.assertEquals(codecs.escape_decode(""), ("", 0))
def test_main():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(UTF16Test))
suite.addTest(unittest.makeSuite(EscapeDecodeTest))
test_support.run_suite(suite)
if __name__ == "__main__":
test_main()
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