Question

The test I’m writing is checking to see if I can delete an assignment or not. I thought I’d check for the presence of the link itself first:

describe "Deleting an assignment" do
        before{ visit assignments_path }
        it{ should have_selector('th', text: "Band Member") }
    end

Now when I load the page itself it renders perfectly without any errors (haven’t tried pushing to Heroku yet), but the testing environment returns:

Failures:

  1) Assignment pages Deleting an assignment 
     Failure/Error: before{ visit assignments_path }
     ActionView::Template::Error:
       undefined method `name' for nil:NilClass

the code that’s causing the error is in my assignment stub

<td><%= assignment.user.name + " " + assignment.user.surname%></td>

My assignments controller’s index action is simply:

  def index
  @assignments = Assignment.all
  end

I can’t see anything obvious so any help would be appreciated. Thank you in advance!

Answer 1

It turns out that the first instance of a user created in the test environment was 31 not 1. This was because I was creating a set of 30 users in another test suite but deleting the users afterwards (hence why user 1 didn’t exist). I got around this by assigning the role using a call rather than hard coding what I thought was the ID.

@assignment = Assignment.create(user_id: @user.id, role_id: @roleSecond.id)