[rspec-users] Ordering in view specs using have_tag and with_tag
win at wincent.com
Tue May 29 05:36:28 EDT 2007
El 29/5/2007, a las 4:00, David Chelimsky escribió:
> Actually - looking at assert_select (which have_tag and with_tag
> wrap), you should be able to get what you're looking for using the
> nth-child selectors. Check it out:
Great cheat sheet, that one! Thanks for sharing the link. There's
also a PDF if anyone wants to print it out:
Yes, I think that would definitely work. If we add that to the list
of possible techniques we now have three levels of specificity;
working from least to most specific we have:
1. No ordering requirements, when you only care about the presence of
tags on the page.
2. Strict ordering requirement, as implemented by the assert_select
patch that I posted, where you expect tags to appear in the order
that you assert them in your specs.
3. Ultra-strict positioning, using the nth-child selectors as you
suggest, where you not only care about the order of the tags but
specify their numeric position within the list.
Obviously as you move through the list from less to more specific
your specs become more tightly bound to the structural details of the
view, it becomes harder to change the view without breaking the
specs, which in turn means you'll tend to pick up mistakes in the
view more quickly, but you'll also have a lot more duplication
between view and spec.
So I guess it's a matter of choosing the right tool for each case.
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