paper_trail_load_associations_on_destroy.rb

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  ruby "2.2.1"
  source "https://rubygems.org"
  gem "activerecord", "4.2.2"
  gem "minitest", "5.8.3"
  gem "paper_trail", "4.1.0", require: false
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :users, force: true do |t|
    t.text :first_name, null: false
    t.timestamps null: false
  end
  create_table :versions do |t|
    t.string :item_type, null: false
    t.integer :item_id, null: false
    t.string :event, null: false
    t.string :whodunnit
    t.text :object, limit: 1_073_741_823
    t.text :object_changes, limit: 1_073_741_823
    t.integer :transaction_id
    t.datetime :created_at
  end
  add_index :versions, [:item_type, :item_id]
  add_index :versions, [:transaction_id]

  create_table :version_associations do |t|
    t.integer  :version_id
    t.string   :foreign_key_name, null: false
    t.integer  :foreign_key_id
  end
  add_index :version_associations, [:version_id]
  add_index :version_associations, [:foreign_key_name, :foreign_key_id],
    name: "index_version_associations_on_foreign_key"
end


require "paper_trail"


class User < ActiveRecord::Base
  has_paper_trail
end

class PaperTrailLoadAssociatedVersionsAfterDestroy < ActiveSupport::TestCase
  def test_call_load_traget_when_destroing
    user = User.create(first_name: "Jane")
    association = user.send(user.class.versions_association_name)
    association.define_singleton_method(:load_target) do
      raise "#{association.class}#load_traget was called"
    end
    assert_nothing_raised do
      user.destroy
    end
  end
end