rails_issue_32953.rb

# frozen_string_literal: true

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
  source "https://rubygems.org"

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

  gem "rails", github: "rails/rails"
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :books, force: true do |t|
  end

  create_table :pages, force: true do |t|
    t.integer :book_id
  end
end

class Book < ActiveRecord::Base
end

class Page < ActiveRecord::Base
  belongs_to :book
end

class SpecialPage < Page
  belongs_to :book, optional: true
end

class BugTest < Minitest::Test
  def test_optional_belongs_to_without_association_presence_is_valid
    special_page = SpecialPage.create!

    assert_equal 1, SpecialPage.count
  end
end