require 'bundler/inline'

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

  gem "mongoid", "#{ENV["MONGOID_VERSION"] || '8.0.8'}"

  gem "minitest", require: "minitest/autorun"

  # non declared dependencies, no longer bundled with newer Rubies:
  gem "bigdecimal", "~> 3.1", require: false
  gem "mutex_m", "~> 0.2.0", require: false
  gem "base64", "~> 0.2.0", require: false
  gem "logger", "~> 1.6", require: false
  gem "ostruct", "~> 0.6.0", require: false
end

Mongoid.configure do |config|
  config.clients.default = {
    hosts: ['localhost:27017'],
    database: 'mongoid8_test',
  }
  config.log_level = :debug
end

class Author
  include Mongoid::Document
  embeds_many :posts, cascade_callbacks: true

  field :condition, type: Boolean
end

class Post
  include Mongoid::Document
  embedded_in :author

  validate :parent_condition_is_not_true

  def parent_condition_is_not_true
    return unless author&.condition
    errors.add :base, "Author condition is true"
  end
end

Author.delete_all
Post.delete_all

describe Author do

  describe "when author is not persisted" do
    it "validates author" do
      assert Author.new.valid?
      assert Author.new(posts: [Post.new]).valid?
      refute Author.new(condition: true, posts: [Post.new]).valid?
    end
  end

  describe "when author is persisted" do
    before do
      @author = Author.create posts: [Post.new]
    end

    it "author is initially valid" do
      assert @author.valid?
    end

    describe "when author condition becomes true" do
      before do
        @author.update_attributes condition: true
      end

      it "author becomes no longer valid because post is no longer valid" do
        refute @author.valid?
      end
    end
  end
end