Rails%203%20In%20Action

196 CHAPTER 8 More authorization
current_user is set (it won’t be set if the user isn’t signed in), and if it is, check to see
if that user is an admin by using the try method, which returns nil. If the method
specified can’t be found on thing, try is called. If it’s found, then you use
block.call, which runs the passed-in block.
With this helper implemented, all three new scenarios should pass. Run bin/
cucumber features/hidden_links.feature to find out:
10 scenarios (10 passed)
60 steps (60 passed)
Great! They’re passing! Now let’s implement another few for testing the Edit link for
tickets. Add the three scenarios from the following listing to the bottom of features/
hidden_links.feature.
Listing 8.12 features/hidden_links.feature
Scenario: Edit ticket link is shown to a user with permission
Given "user@ticketee.com" can view the "TextMate 2" project
And "user@ticketee.com" can edit tickets on the "TextMate 2" project
And I am signed in as "user@ticketee.com"
When I follow "TextMate 2"
And I follow "Shiny!"
Then I should see the "Edit" link
Scenario: Edit ticket link is hidden from a user without permission
Given "user@ticketee.com" can view the "TextMate 2" project
And I am signed in as "user@ticketee.com"
When I follow "TextMate 2"
And I follow "Shiny!"
Then I should not see the "Edit" link
Scenario: Edit ticket link is shown to admins
Given I am signed in as "admin@ticketee.com"
When I follow "TextMate 2"
And I follow "Shiny!"
Then I should see the "Edit" link
When you run these scenarios using bin/cucumber feature/hidden_links.feature,
the link to Shiny! can’t be found for any of them:
And I follow "Shiny!"
no link with title, id or text 'Shiny!' found (Capybara::ElementNotFound)
The Shiny! link should be a link to a ticket, but you haven’t yet created this ticket. To
do so, under the line where you created the TextMate 2 project in the Background,
add the following to create a ticket:
And "user@ticketee.com" has created a ticket for this project:
| title | description |
| Shiny! | My eyes! My eyes! |
Now when you run this feature, the middle scenario fails, just like when you implemented
the Create link filtering: