What to test and how to test it?

Question

I want to write tests for destroying objects on ruby on rails with cucumber and capybara and rack_test.

I think that I should write a scenario like:

When I try to delete X object
Then I should be on the index page for ...
And I should see "Object deleted successfully" 

I don't want to test it by clicking on a link on the index page or the show/edit page because I think I should be testing something different than purely the delete action.

Also, clicking on a link means that the interface is ok, but what happens if someone send a request to delete an object he can't and the interface doesn't show the link?

Given this, I need to send a delete request in the first step and then inspect the response to that request.

I've find troubles trying to do that because when I implement the first step as delete url then when I try page.should have_contain(text) I get the error No response yet. Request a page first. (Rack::Test::Error)

What do you think about it?

Answer 1

check out how-do-you-post-to-a-url-in-capybara (answering another question) but there a several examples of how to use visit in a capybara test like

visit "item/:id/delete"