In most sections, we had two specs testing what happens after accessing
one of the privileged areas. We're grouping the expectations and so
we've only got one test per area, making these tests faster.
This way we reduce the number of system tests or, in some cases,
requests during system tests, making the tests faster.
We're still testing the interaction with the menu when users have the
right permissions.
JavaScript is used by about 98% of web users, so by testing without it
enabled, we're only testing that the application works for a very
reduced number of users.
We proceeded this way in the past because CONSUL started using Rails 4.2
and truncating the database between JavaScript tests with database
cleaner, which made these tests terribly slow.
When we upgraded to Rails 5.1 and introduced system tests, we started
using database transactions in JavaScript tests, making these tests much
faster. So now we can use JavaScript tests everywhere without critically
slowing down our test suite.