unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'
    gem 'rails', '4.2.1' # works with '4.2.0'
    gem 'mysql2'
  GEMFILE

  system 'bundle'
end

require 'bundler'
Bundler.setup(:default)

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

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'mysql2',
                                        host: 'localhost',
                                        username: 'user',
                                        password: 'password',
                                        database: 'test')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :test, force: true  do |t|
    t.integer :desc
  end
end

class Test < ActiveRecord::Base
  self.table_name = :test

  default_scope { select(:desc) }
end

class BugTest < Minitest::Test
  def test_from_escaping_attributes
    Test.create!(desc: 10)
    Test.create!(desc: 11)

    result = Test.from(Test.where(desc: 10), Test.table_name)

    assert_equal 1, result.to_a.size
  end
end