Autosave validations

autosave_validations.rb

# frozen_string_literal: true

require "bundler/inline"

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

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

  # Activate the gem you are reporting the issue against.
  gem "activerecord", "~> 7.0.0"
  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 :users, force: true do |t|
  end

  create_table :emails, force: true do |t|
    t.integer :user_id
  end

  create_table :roles, force: true do |t|
    t.integer :email_id
  end
end

class ApplicationRecord < ActiveRecord::Base
  self.abstract_class = true

  validate :validation

  def validation
    $validations[self.class] += 1
  end
end

class User < ApplicationRecord
  has_many :emails
end

class Email < ApplicationRecord
  belongs_to :user
  has_many :roles
end

class Role < ApplicationRecord
  belongs_to :email
end

class BugTest < Minitest::Test
  def test_manual_save
    $validations = Hash.new(0)

    user = User.new
    email = Email.new(user: user)
    role = Role.new(email: email)
    user.save!
    email.save!
    role.save!

    assert_equal 1, $validations[Role]
    assert_equal 1, $validations[Email]
    assert_equal 1, $validations[User]
  end

  def test_autosave
    $validations = Hash.new(0)

    user = User.new
    email = user.emails.build
    email.roles.build
    user.save!

    assert_equal 3, $validations[Role]
    assert_equal 2, $validations[Email]
    assert_equal 1, $validations[User]
  end
end