numericalty_test.rb

# 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", 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 :posts, force: true do |t|
    t.decimal :integer
  end
end

class Post < ActiveRecord::Base
  attribute :total_price, :decimal

  validates :total_price, numericality: { only_integer: true }
end


class BugTest < Minitest::Test
  def test_dup_record
    post = Post.new(total_price: 4)
    second_post = post.dup

    assert post.save!
    assert second_post.valid?
  end
end