Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_codecs.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents e3184e46303b
children aa0d2d51fbde
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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f926eb1f5770 Test by Martin v. Loewis for the new UTF-16 codec handling of BOM
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1 import test_support,unittest
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2 import codecs
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3 import StringIO
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4
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5 class UTF16Test(unittest.TestCase):
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7 spamle = '\xff\xfes\x00p\x00a\x00m\x00s\x00p\x00a\x00m\x00'
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8 spambe = '\xfe\xff\x00s\x00p\x00a\x00m\x00s\x00p\x00a\x00m'
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10 def test_only_one_bom(self):
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11 _,_,reader,writer = codecs.lookup("utf-16")
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12 # encode some stream
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13 s = StringIO.StringIO()
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14 f = writer(s)
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15 f.write(u"spam")
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16 f.write(u"spam")
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17 d = s.getvalue()
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18 # check whether there is exactly one BOM in it
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19 self.assert_(d == self.spamle or d == self.spambe)
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20 # try to read it back
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21 s = StringIO.StringIO(d)
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22 f = reader(s)
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23 self.assertEquals(f.read(), u"spamspam")
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26 def test_main():
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27 test_support.run_unittest(UTF16Test)
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30 if __name__ == "__main__":
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31 test_main()