Rspec testing find_or_create method

Question

I've checked my simplecov result and I've seen that

    record = User.where("fb_id = ? or email = ? ", params[:fb_id], params[:email]).first_or_create do |rows|
      rows.first_name = params[:first_name]
      rows.last_name = params[:first_name]

etc(all the variables after do |rows| ) haven't covered.

Any ideas, how could I test this stuff ? enter image description here

Andy Waite · Answer 1 · 2015-06-08T15:13:21.173

-1

The block will only be called if there are no matches for the where clause:

http://apidock.com/rails/ActiveRecord/Relation/first_or_create

Update

Your test stubs User as follows:

expect(User).to receive_message_chain(:where, :first_or_create).and_return(user)

You need a second test where where returns an empty result set, instead of a user, in order to verify the behaviour of the lines in the block.

edited Jun 08 '15 at 15:13

answered Jun 04 '15 at 11:51

Andy Waite

10,785
4
33
47

My first or create method is tested. I need to test variables, that I've described before – dsounded Jun 04 '15 at 13:17
I don't understand what you mean. Perhaps you can edit your post to show your tests. – Andy Waite Jun 04 '15 at 18:36
I've changed first post with screenshot – dsounded Jun 05 '15 at 06:37
That doesn't really help. Please shows the actual test code. – Andy Waite Jun 06 '15 at 17:16
I've made a small correction to my response. Try `expect(User).to receive(:where).and_return([])`. It may help to look at the implementation of http://apidock.com/rails/ActiveRecord/Relation/first_or_create (click on Show Source). – Andy Waite Jun 08 '15 at 15:15
[] does not implement: first_or_create [] does not implement: email= in both cases – dsounded Jun 09 '15 at 07:43
Yes, ignore that, bad advice. – Andy Waite Jun 09 '15 at 07:57
The way I want to stub returned value is let(:fake_query) { User.where(:id => "asd") } And then try to expect that object to receive email=, test passes but coverage still the same – dsounded Jun 09 '15 at 08:19

Rspec testing find_or_create method

1 Answers1