Merged revisions 77895-77896 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r77895 | antoine.pitrou | 2010-01-31 23:47:27 +0100 (dim., 31 janv. 2010) | 12 lines

  Merged revisions 77890 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r77890 | antoine.pitrou | 2010-01-31 23:26:04 +0100 (dim., 31 janv. 2010) | 7 lines

    - Issue #6939: Fix file I/O objects in the `io` module to keep the original
      file position when calling `truncate()`.  It would previously change the
      file position to the given argument, which goes against the tradition of
      ftruncate() and other truncation APIs.  Patch by Pascal Chambon.
  ........
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  r77896 | antoine.pitrou | 2010-02-01 00:12:29 +0100 (lun., 01 févr. 2010) | 3 lines

  r77895 broke doctest.
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This commit is contained in:
Antoine Pitrou 2010-01-31 23:20:26 +00:00
parent 1665a8d931
commit 66f9fea782
13 changed files with 99 additions and 48 deletions

View file

@ -330,6 +330,17 @@ class OtherFileTests(unittest.TestCase):
f.close()
self.fail("no error for invalid mode: %s" % bad_mode)
def testTruncate(self):
f = _FileIO(TESTFN, 'w')
f.write(bytes(bytearray(range(10))))
self.assertEqual(f.tell(), 10)
f.truncate(5)
self.assertEqual(f.tell(), 10)
self.assertEqual(f.seek(0, os.SEEK_END), 5)
f.truncate(15)
self.assertEqual(f.tell(), 5)
self.assertEqual(f.seek(0, os.SEEK_END), 15)
def testTruncateOnWindows(self):
def bug801631():
# SF bug <http://www.python.org/sf/801631>