require "cases/helper" require 'models/topic' module ActiveRecord class DupTest < ActiveRecord::TestCase fixtures :topics def test_dup assert !Topic.new.freeze.dup.frozen? end def test_dup_not_persisted topic = Topic.first duped = topic.dup assert !duped.persisted?, 'topic not persisted' assert duped.new_record?, 'topic is new' end def test_dup_has_no_id topic = Topic.first duped = topic.dup assert_nil duped.id end def test_dup_with_modified_attributes topic = Topic.first topic.author_name = 'Aaron' duped = topic.dup assert_equal 'Aaron', duped.author_name end def test_dup_with_changes dbtopic = Topic.first topic = Topic.new topic.attributes = dbtopic.attributes duped = dbtopic.dup assert_equal topic.changes, duped.changes end def test_dup_topics_are_independent topic = Topic.first topic.author_name = 'Aaron' duped = topic.dup duped.author_name = 'meow' assert_not_equal topic.changes, duped.changes end def test_dup_attributes_are_independent topic = Topic.first duped = topic.dup duped.author_name = 'meow' topic.author_name = 'Aaron' assert_equal 'Aaron', topic.author_name assert_equal 'meow', duped.author_name end end end