require 'byebug'
require 'mongoid'

require 'minitest/autorun'

Mongoid.configure do |config|
  config.connect_to('mongoid_embedded_test')
end

Mongo::Logger.logger = Logger.new(STDOUT)
Mongo::Logger.logger.level = Logger::DEBUG
# increase log size limit
Mongo::Monitoring::CommandLogSubscriber::LOG_STRING_LIMIT = 10_000

###
# Models
###

class Post
  include Mongoid::Document

  field :title, type: String

  embeds_one :extra
end

class Extra
  include Mongoid::Document

  field :info, type: String

  embedded_in :post
  embeds_many :tags
end

class Tag
  include Mongoid::Document

  field :label, type: String

  embedded_in :extra
end

###
# Test
###

class TestUpdateEmbedded < Minitest::Test
  def setup
    Post.delete_all
  end

  def test_assigning_embedded
    post = Post.create(title: 'foo')

    extra = Extra.new(info: 'bar')
    tags = [Tag.new(label: 'tag'), Tag.new(label: 'tag2')]

    extra.assign_attributes(tags: tags)
    post.assign_attributes(extra: extra)

    post.save!

    assert_nil post.reload.as_document['tags']
  end
end