message: Add content check to be consistent.
diff: @@ -119,6 +119,7 @@ TEST(RangeOpModel, EmptyOutput) {
  model.PopulateTensor<int32_t>(model.delta(), {1});
  model.Invoke();
  EXPECT_THAT(model.GetOutputShape(), ElementsAre(0));
  + EXPECT_THAT(model.GetOutput(), ElementsAre());
  }
  } // namespace
  