mysql2-threadexit.rb

# frozen_string_literal: true

require "bundler/inline"

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

  gem "rails"
  gem "mysql2"
end

require "active_record/railtie"
require "minitest/autorun"

ENV["DATABASE_URL"] = "mysql2://root:[email protected]/test_database"

class TestApp < Rails::Application
  config.load_defaults Rails::VERSION::STRING.to_f
  config.eager_load = false
  config.logger = Logger.new($stdout)
  config.secret_key_base = "secret_key_base"

  config.active_record.encryption.primary_key = "primary_key"
  config.active_record.encryption.deterministic_key = "deterministic_key"
  config.active_record.encryption.key_derivation_salt = "key_derivation_salt"
end
Rails.application.initialize!

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

  create_table :comments, force: true do |t|
    t.integer :post_id
  end
end

class Post < ActiveRecord::Base
  has_many :comments
end

class Comment < ActiveRecord::Base
  belongs_to :post
end

class BugTest < ActiveSupport::TestCase
  def test_association_stuff
    post = Post.create!
    post.comments.create!

    100.times do
      th = Thread.new do
        loop do
          Rails.application.executor.wrap do
            Post.find_by(id:post.id)
          end
        end
      end
      sleep(0.1)
      th.exit
    end
  end
end