       Application.put_env(:phoenix, :filter_parameters, ~w(password))
       Config.initialize()
       assert MapFilter.get_filter_parameters() == ["password"]
-
-      Application.delete_env(:phoenix, :filter_parameters)
     end
 
     test "merges AppSignal's parameter filters with Phoenix' parameter filters" do


      assert MapFilter.filter_parameters(values) ==
               %{"name" => "Alice", "password" => "[FILTERED]"}

      Application.delete_env(:phoenix, :filter_parameters)
    end

    test "appsignal's parameter filters merge with Phoenix' parameter filters" do


        assert MapFilter.get_filter_parameters() == ["token", "password"]
      end)
    end
  end

