persisted.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', branch: '6-1-stable'
  gem 'sqlite3'
  gem 'timeout', '0.4.0'
end

require 'active_record'
require 'minitest/autorun'
require 'logger'
require 'securerandom'

ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :users, force: true, id: :uuid do |t|
    t.string :name

    t.timestamps
  end
end

class User < ActiveRecord::Base
  validates :name, presence: true
end

class BugTest < Minitest::Test
  def test_persisted_is_false_after_rollback
    begin
      ActiveRecord::Base.transaction do
        @user = User.new(id: SecureRandom.uuid, name: 'test')

        @user.save!

        raise ActiveRecord::RecordInvalid
      end
    rescue ActiveRecord::RecordInvalid
      assert !@user.persisted?
    end
  end
end