vendor/rails/activerecord/test/cases/callbacks_observers_test.rb

   1 require "cases/helper"
   2
   3 class Comment < ActiveRecord::Base
   4   attr_accessor :callers
   5
   6   before_validation :record_callers
   7
   8   def after_validation
   9     record_callers
  10   end
  11
  12   def record_callers
  13     callers << self.class if callers
  14   end
  15 end
  16
  17 class CommentObserver < ActiveRecord::Observer
  18   attr_accessor :callers
  19
  20   def after_validation(model)
  21     callers << self.class if callers
  22   end
  23 end
  24
  25 class CallbacksObserversTest < ActiveRecord::TestCase
  26   def test_model_callbacks_fire_before_observers_are_notified
  27     callers = []
  28
  29     comment = Comment.new
  30     comment.callers = callers
  31
  32     CommentObserver.instance.callers = callers
  33
  34     comment.valid?
  35
  36     assert_equal [Comment, Comment, CommentObserver], callers, "model callbacks did not fire before observers were notified"
  37   end
  38 end