The interface was a bit confusing, since after clicking on "See
unfeasible investments" (or similar), we were on a page where no
investments were shown.
Besides, since commit 7e3dd47d5, the group page is only linked from the
"my ballot" page, through a link inviting the user to vote in that
group, and it's only possible to vote selected investments (which is the
default filter during the final voting phase).
The only reason we had these links here was these links weren't present
in the investments page. But they're present there since commit
04605d5d5, so we don't need them in the group page anymore.
When render the investment list component with the link "see all
investments", now we redirect to groups index page when a budget has
multiple headings.
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.
Even if we usually only access these pages for the current budget, that
might not always be the case, and now that we've unified budget landing
pages, there's no point in them pointing to the index anymore.
