awesome-nested-set-children

test-children.rb

# test-children.rb
# This is a stand-alone test case.
# Run it in your console with: `rubytest-children.rb`
# If you change the gem dependencies, run it with:
# `rm gemfile* && ruby test-children.rb`

unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'
    # Rails master
    gem 'rails', '~> 5.0.1'
    # Rails last release
    #gem 'rails', github: 'rails/rails'
    gem 'sqlite3'
    gem 'byebug'
    gem 'awesome_nested_set', '~> 3.1.1'
  GEMFILE

  system 'bundle install'
end

require 'bundler'
Bundler.setup(:default)

require 'active_record'
require 'minitest/autorun'
require 'logger'
require 'awesome_nested_set'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

# Display versions.
message = "Running test case with Ruby #{RUBY_VERSION}, Active Record #{
  ::ActiveRecord::VERSION::STRING}, Arel #{Arel::VERSION} and #{
  ::ActiveRecord::Base.connection.adapter_name}"
line = '=' * message.length
puts line, message, line

ActiveRecord::Schema.define do
  create_table :nodes do |t|
    t.string :name
    t.integer :parent_id
    t.integer :lft
    t.integer :rgt
  end
end


class Node < ActiveRecord::Base
  acts_as_nested_set dependent: :destroy
end

class BugTest < Minitest::Test
  def test_append_to_children
    n = Node.create!
    n2 = Node.create!
    n.children << n2
    assert_equal Node.find(n.id).descendants, [n2]
    assert_equal n.descendants, [n2]
  end
end