update the list of instance variables that are excluded from assigns in view tests

[#4930 state:resolved]
Signed-off-by: NJosé Valim <jose.valim@gmail.com>

actionpack/lib/action_view/test_case.rb

@@ -159,24 +159,25 @@ def _view
       end
 
       EXCLUDE_IVARS = %w{
+        @_assertion_wrapped
         @_result
+        @_view
+        @controller
+        @layouts
+        @locals
+        @method_name
         @output_buffer
+        @partials
         @rendered
+        @request
+        @routes
         @templates
-        @view_context_class
-        @layouts
-        @partials
-        @controller
-
-        @method_name
-        @fixture_cache
-        @loaded_fixtures
         @test_passed
+        @view_context_class
       }
 
       def _instance_variables
         instance_variables - EXCLUDE_IVARS
-        instance_variables
       end
 
       def _assigns