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Ruby Building Social Features in Ruby on Rails Creating Friendships Testing Friendships

Posted by Sam Berson
Sam Berson
2,626 Points

Testing Friendships: "UserFriendship should belong to friend." Error (Rails 4)

The test at 4:55 which seems to pass in the video, fails for me. Here's the error I'm getting:

1) Failure:
UserFriendshipTest#test_: UserFriendship should belong to friend.  [/Users/Sam/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/shoulda-context-1.2.1/lib/shoulda/context/context.rb:344]:
Expected UserFriendship to have a belongs_to association called friend (Friend does not exist)

My 'user_friendship_test.rb' file looks like this:

require 'test_helper'

class UserFriendshipTest < ActiveSupport::TestCase
  should belong_to(:user)
  should belong_to(:friend)
end

My 'user_friendship.rb' file looks like this:

class UserFriendship < ActiveRecord::Base
  belongs_to :user
  belongs_to :friend
end

I should point out that I'm using Rails 4.

Any help would be much appreciated :)

4 Answers

Keith Gordon
Keith Gordon
429 Points
Keith Gordon
Keith Gordon
429 Points

@Sam Berson

use this code for user_friendship.rb

  class UserFriendship < ActiveRecord::Base
  belongs_to :user
  belongs_to :friend, class_name: 'User', foreign_key: 'friend_id'
end
            ```
Reid McGregor
Reid McGregor
6,846 Points
Reid McGregor
Reid McGregor
6,846 Points

Keith's answer got this to pass for me.

Naomi Freeman
STAFF
Naomi Freeman
Treehouse Guest Teacher
Naomi Freeman
Naomi Freeman
Treehouse Guest Teacher

I could be wrong, but in my Rails 4 app, I had to go in and define user_friendship inside the User model:

https://github.com/summerspirit/laughing-wookie/blob/master/app/models/user.rb

I don't remember if that's the thing that got the test to pass though. (or if my tests are passing at all at this point)

Sam Berson
Sam Berson
2,626 Points

Nope, that hasn't solved the problem - I think the issue is the fact that it's simply not detecting my 'friend' code in the 'user_friendship.rb' file. I'm not sure how to fix it though :(

Naomi Freeman
STAFF
Naomi Freeman
Treehouse Guest Teacher
Naomi Freeman
Naomi Freeman
Treehouse Guest Teacher

did you generate a migration or just write the belongs_to in there?

Sam Berson
Sam Berson
2,626 Points

Yup, just tried 'rake db:migrate' and still getting the error :(

Sam Berson
Sam Berson
2,626 Points
Sam Berson
Sam Berson
2,626 Points

Can anyone help me out? Jason Seifer