require 'cases/helper' module ActiveRecord class StringTypeTest < ActiveRecord::TestCase test "string mutations are detected" do klass = Class.new(Base) klass.table_name = 'authors' author = klass.create!(name: 'Sean') assert_not author.changed? author.name << ' Griffin' assert author.name_changed? author.save! author.reload assert_equal 'Sean Griffin', author.name assert_not author.changed? end end end