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authorAntoine Pitrou <solipsis@pitrou.net>2010-01-31 23:20:26 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2010-01-31 23:20:26 (GMT)
commit66f9fea782d330b28fe142ac4e58faff8a6f42d1 (patch)
tree664127f167fb8d906cf7f7de7d1e1557fea0e647 /Lib/test/test_fileio.py
parent1665a8d9313660ffdcf3eda3eb1e1cc4eefcacee (diff)
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Merged revisions 77895-77896 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k ................ 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 ........ 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. ........ ................ r77896 | antoine.pitrou | 2010-02-01 00:12:29 +0100 (lun., 01 févr. 2010) | 3 lines r77895 broke doctest. ................
Diffstat (limited to 'Lib/test/test_fileio.py')
-rw-r--r--Lib/test/test_fileio.py11
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_fileio.py b/Lib/test/test_fileio.py
index 7a9b780..f89c542 100644
--- a/Lib/test/test_fileio.py
+++ b/Lib/test/test_fileio.py
@@ -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>