callback methos rspecs in ruby on rails

Add gem 'shoulda-callback-matchers'

In app/models/user.rb

class User < ActiveRecord::Base
  after_create :create_usersetting
  before_destroy :delete_user_information
end


In spec/models/user_spec.rb

 require "rails_helper"
 require 'factory_girl_rails'
describe User do

  before(:each) do
    @user = User.create(:email=>"example@gmail.com",:password=>"1234578")
  end

it "should trigger create_usersetting on after create" do
     should callback(:create_usersetting).after(:create)   
    end
  
    it  "should trigger delete_user_information on before destroy" do
      is_expected.to callback(:delete_user_information).before(:destroy)
    end

end