should_set_the_flash_to doesn't do quite what I'd like. I want to: a) specify which level of flash should be set (ie make sure it's a notice and not an error) and b) not care exactly what notice has been set.

IMO tying your tests down too hard to ephemeral strings is annoying... what is somebody changed the wording from "user created" to "thanks for signing up"? You have to change your test