Prevent a warning: assigned but unused variable - raised_exception

test/test_timeout.rb

@@ -108,7 +108,7 @@ class TestTimeout < Test::Unit::TestCase
       raised_exception = e
     end
 
-    assert_equal 'inner message', e.message
+    assert_equal 'inner message', raised_exception.message
   end
 
   def test_cannot_convert_into_time_interval