require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'concurrent-ruby', '1.3.4'
  gem 'mongoid', '~> 8.0.8'
  # gem 'mongoid', '7.5.4'
end

Mongoid.configure do |config|
  config.clients.default = {
    hosts: ['mongo:27017'],
    database: 'mongoid_test',
  }
end
Mongoid.purge!

class Article
  include Mongoid::Document

  field :send_delay, type: Integer

  validates_numericality_of :send_delay, allow_blank: true
end

article = Article.new(send_delay: 'abc')

pp article.send_delay # => nil
pp article.valid? # => true
pp article.errors # => []

pp article.send_delay # => 0
pp article.valid? # => false
pp article.errors # => <ActiveModel::Errors [#<ActiveModel::Error attribute=send_delay, type=not_a_number, options={:allow_blank=>true, :value=>"abc"}>]>