# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails"
  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 :lefts, force: true do |t|
  end

  create_table :rights, force: true do |t|
  end

  create_table :middles, force: true do |t|
    t.references :left, foreign_key: true
    t.references :right, foreign_key: true
  end
end

class Left < ActiveRecord::Base
  has_one :middle, dependent: :destroy
  has_one :right, through: :middle
end

class Middle < ActiveRecord::Base
  belongs_to :left, dependent: :destroy
  belongs_to :right, dependent: :destroy
end

class Right < ActiveRecord::Base
  has_one :middle, dependent: :destroy
  has_one :left, through: :middle
end

class BugTest < Minitest::Test
  def test_destroying_left_destroys_right
    left = Left.create!
    right = Right.create!
    middle = Middle.create! left: left, right: right

    left.destroy
    assert right.destroyed?
  end

  def test_destroying_right_destroys_left
    left = Left.create!
    right = Right.create!
    middle = Middle.create! left: left, right: right

    right.destroy
    assert left.destroyed?
  end
end