Opposite of testing-concept-one-assertion-per-test
These types of tests are helpful in testing-concept-long-lasting-regression-tests because they are faster (and speed is important in those tests)
In podcast-rr-185-rails-4-test-prescriptions-with-noel-rappin Jessica says that these types of tests are good at telling stories (and stories are the quickest way to regain context later)
In betterspecs-single-expectation he mentions that it can sense to use this style if the setup costs for each test are big (non-isolated tests)