issue 6275
Add an "exc_value" attribute to the _AssertRaisesContext context manager in the unittest package. This allows further tests on the exception that was raised after the context manager exits.
diff --git a/Lib/test/test_unittest.py b/Lib/test/test_unittest.py
index cca1836..5c3921d 100644
--- a/Lib/test/test_unittest.py
+++ b/Lib/test/test_unittest.py
@@ -2821,6 +2821,21 @@
self.assertRaisesRegexp, Exception,
re.compile('^Expected$'), Stub)
+ def testAssertRaisesExcValue(self):
+ class ExceptionMock(Exception):
+ pass
+
+ def Stub(foo):
+ raise ExceptionMock(foo)
+ v = "particular value"
+
+ ctx = self.assertRaises(ExceptionMock)
+ with ctx:
+ Stub(v)
+ e = ctx.exc_value
+ self.assertTrue(isinstance(e, ExceptionMock))
+ self.assertEqual(e.args[0], v)
+
def testSynonymAssertMethodNames(self):
"""Test undocumented method name synonyms.