Find elements by data attributes

I'm improving my tests with RSpec and capybara-webkit, trying to delete all the css and xpath selectors like

find('#edit_user > div:nth-child(7) > div > div > button').click

and I'm looking for the best option to replace them.

I was going to use the css class of the elements but some "pro" capybara testers say this is not the best option.

So my question is: can I use the dataattributes in my tests?
If I have an element

<button name="button" type="submit" class="button last" data-test="edit.update">Update/button>

will I be able to do

find('edit.update').click

?