test result

rspec ./spec/models/video_spec.rb
.....F

Failures:

  1) Video#last_used works with one video
     Failure/Error: expect(Video.last_used.usec).to eq video.updated_at.usec

       expected: 840199
            got: 0

       (compared using ==)
     # ./spec/models/video_spec.rb:52:in `block (3 levels) in <top (required)>'

Finished in 1.91 seconds (files took 4.36 seconds to load)
6 examples, 1 failure

Failed examples:

rspec ./spec/models/video_spec.rb:50 # Video#last_used works with one video

video.rb

 # get updated_at for most recently updated video
 42   def self.last_used
 43     Video.order(:updated_at).last.updated_at
 44   end

video_spec.rb

  3 describe Video do
  .
  .
  .
 49   context "#last_used" do
 50     it "works with one video" do
 51       video = create(:video)
 52       expect(Video.last_used.usec).to eq video.updated_at.usec
 53     end
 54   end
 55 end