1 files changed, 4 insertions, 5 deletions
diff --git a/actionpack/lib/action_dispatch/testing/assertions/routing.rb b/actionpack/lib/action_dispatch/testing/assertions/routing.rb
index 79dff7d121..9210bffd1d 100644
--- a/actionpack/lib/action_dispatch/testing/assertions/routing.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions/routing.rb
@@ -1,5 +1,6 @@
 require 'uri'
 require 'active_support/core_ext/hash/indifferent_access'
+require 'active_support/core_ext/string/access'
 require 'action_controller/metal/exceptions'
 
 module ActionDispatch
@@ -208,11 +209,9 @@ module ActionDispatch
         end
 
         def fail_on(exception_class)
-          begin
-            yield
-          rescue exception_class => e
-            raise MiniTest::Assertion, e.message
-          end
+          yield
+        rescue exception_class => e
+          raise MiniTest::Assertion, e.message
         end
     end
   end