The link to edit the process is already present before clicking the
"All" link, which meant the test failed sometimes because Capybara might
try to click on the "Edit" link at the same time the page is changing
due to the click on the "All" link".
Due to this issue, this test has failed at least one in our CI [1].
[1] https://github.com/consul/consul/runs/2324773853
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.
System tests are used to test the application from the user's point of
view. To test for specific exceptions, particularly regarding
authorization permissions, controller tests fit better.
Another option would be to test the page displayed shows a certain text,
like "Internal server error". I'm choosing controller tests because
they're faster and we're basically testing the same scenario many times
and we've already got a test checking what happens when users access a
page raising an exception.
We were repeating the same code over and over (with a few variants) to
setup tests which require an administrator. We can use a tag and
simplify the code.
In some tables, we had "actions", and some columns were also links
pointing to some places. Having both of them at the same time is
confusing, particularly since traditionally the links in the columns
pointed to the same place as some of the actions (although that's not
the case since commit 48db31cd).
We're still keeping links in tables which don't have an action column.
For instance, the proposals table has a "select" button which would be
harder to use if we had action buttons next to it.
