SF patch #1359365: cStringIO.StringIO.isatty() will raise a ValueError
now if close() has been called before (like file and StringIO.StringIO do)
diff --git a/Lib/test/test_StringIO.py b/Lib/test/test_StringIO.py
index a2e5444..cc3367f 100644
--- a/Lib/test/test_StringIO.py
+++ b/Lib/test/test_StringIO.py
@@ -75,6 +75,13 @@
f.close()
self.assertEqual(f.closed, True)
+ def test_isatty(self):
+ f = self.MODULE.StringIO()
+ self.assertRaises(TypeError, f.isatty, None)
+ self.assertEqual(f.isatty(), False)
+ f.close()
+ self.assertRaises(ValueError, f.isatty)
+
def test_iterator(self):
eq = self.assertEqual
unless = self.failUnless