Backport of r67908:

Added test case to ensure attempts to read from a file opened for writing fail.

Backport of r67908:
Added test case to ensure attempts to read from a file opened for writing fail.
edf14317 · Martin v. Löwis · b90b144c · edf14317 · edf14317
Commit edf14317 authored Dec 23, 2008 by Martin v. Löwis
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Lib/test/test_file.py Lib/test/test_file.py +2 -0

Misc/NEWS Misc/NEWS +6 -0

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--- a/Lib/test/test_file.py
+++ b/Lib/test/test_file.py
@@ -116,6 +116,8 @@ class AutoFileTests(unittest.TestCase):
        except:
            self.assertEquals(self.f.__exit__(*sys.exc_info()), None)

+    def testReadWhenWriting(self):
+        self.assertRaises(IOError, self.f.read)

 class OtherFileTests(unittest.TestCase):


--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,12 @@ What's New in Python 2.5.4?

 *Release date: XX-XXX-2009*

+Core and builtins
+-----------------
+
+- Added test case to ensure attempts to read from a file opened for writing
+  fail.
+

 What's New in Python 2.5.3?
 ===========================