[Python-checkins] python/dist/src/Lib/test test_codecs.py, 1.15.2.2, 1.15.2.3

[doerwalter at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14630/Lib/test

Modified Files:
      Tag: release24-maint
	test_codecs.py 
Log Message:
Backport checkin:
Reset internal buffers when seek() is called. This fixes SF bug #1156259.


Index: test_codecs.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_codecs.py,v
retrieving revision 1.15.2.2
retrieving revision 1.15.2.3
diff -u -d -r1.15.2.2 -r1.15.2.3
--- test_codecs.py	10 Jan 2005 12:26:00 -0000	1.15.2.2
+++ test_codecs.py	14 Mar 2005 19:20:19 -0000	1.15.2.3
@@ -24,6 +24,17 @@
             return s
 
 class ReadTest(unittest.TestCase):
+    def test_seek(self):
+        # all codecs should be able to encode these
+        s = u"%s\n%s\n" % (100*u"abc123", 100*u"def456")
+        encoding = self.encoding
+        reader = codecs.getreader(encoding)(StringIO.StringIO(s.encode(encoding)))
+        for t in xrange(5):
+            # Test that calling seek resets the internal codec state and buffers
+            reader.seek(0, 0)
+            line = reader.readline()
+            self.assertEqual(s[:len(line)], line)
+
     def check_partial(self, input, partialresults):
         # get a StreamReader for the encoding and feed the bytestring version
         # of input to the reader byte by byte. Read every available from