[Jython-checkins] SF.net SVN: jython:[5731] trunk/jython/Lib/test/test_with.py

[<pj...@us...>]

Revision: 5731
          http://jython.svn.sourceforge.net/jython/?rev=5731&view=rev
Author:   pjenvey
Date:     2008-12-10 08:10:31 +0000 (Wed, 10 Dec 2008)

Log Message:
-----------
merge in new test from:
http://svn.python.org/projects/python/branches/release25-maint/Lib/test/test_with.py -c 67684

Modified Paths:
--------------
    trunk/jython/Lib/test/test_with.py

Modified: trunk/jython/Lib/test/test_with.py
===================================================================
--- trunk/jython/Lib/test/test_with.py	2008-12-10 07:34:57 UTC (rev 5730)
+++ trunk/jython/Lib/test/test_with.py	2008-12-10 08:10:31 UTC (rev 5731)
@@ -505,7 +505,37 @@
 
         self.assertRaises(GeneratorExit, shouldThrow)
 
+    def testErrorsInBool(self):
+        # issue4589: __exit__ return code may raise an exception
+        # when looking at its truth value.
 
+        class cm(object):
+            def __init__(self, bool_conversion):
+                class Bool:
+                    def __nonzero__(self):
+                        return bool_conversion()
+                self.exit_result = Bool()
+            def __enter__(self):
+                return 3
+            def __exit__(self, a, b, c):
+                return self.exit_result
+
+        def trueAsBool():
+            with cm(lambda: True):
+                self.fail("Should NOT see this")
+        trueAsBool()
+
+        def falseAsBool():
+            with cm(lambda: False):
+                self.fail("Should raise")
+        self.assertRaises(AssertionError, falseAsBool)
+
+        def failAsBool():
+            with cm(lambda: 1//0):
+                self.fail("Should NOT see this")
+        self.assertRaises(ZeroDivisionError, failAsBool)
+
+
 class NonLocalFlowControlTestCase(unittest.TestCase,
                                   ContextmanagerAssertionMixin):
 


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