I tend to side with @julienw: these tests basically assert "Did we write this specific line of code?" and feel a little brittle because of it. It's not that the functionality isn't important, just that we need to balance test maintainability (and running time) against the assurances they provide.

These two tests are an automated way to ensure that the lines aren't mistakenly removed, but the code under test is so obvious that any reviewer would catch the same mistakes.