# frozen_string_literal: true 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_predicate author, :changed? author.name << " Griffin" assert_predicate author, :name_changed? author.save! author.reload assert_equal "Sean Griffin", author.name assert_not_predicate author, :changed? end end end