- Fix use of assert_includes since its not supported by rails 3.2 version

Author: vipulnsward

test/react/jsx_test.rb

@@ -68,7 +68,7 @@ def test_babel_transformer_accepts_babel_transformation_options
     get '/assets/example.js'
     assert_response :success
 
-    assert_not_includes @response.body, 'strict'
+    assert !@response.body.include?('strict')
   end
 
 end