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_not_readonly topic = Topic.first duped = topic.dup assert !duped.readonly?, 'should not be readonly' end def test_is_readonly topic = Topic.first topic.readonly! duped = topic.dup assert duped.readonly?, 'should be readonly' 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.except("id") #duped has no timestamp values duped = dbtopic.dup #clear topic timestamp values topic.send(:clear_timestamp_attributes) 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 def test_dup_timestamps_are_cleared topic = Topic.first assert_not_nil topic.updated_at assert_not_nil topic.created_at # temporary change to the topic object topic.updated_at -= 3.days #dup should not preserve the timestamps if present new_topic = topic.dup assert_nil new_topic.updated_at assert_nil new_topic.created_at new_topic.save assert_not_nil new_topic.updated_at assert_not_nil new_topic.created_at end def test_dup_after_initialize_callbacks topic = Topic.new assert Topic.after_initialize_called Topic.after_initialize_called = false topic.dup assert Topic.after_initialize_called end def test_dup_validity_is_independent repair_validations(Topic) do Topic.validates_presence_of :title topic = Topic.new("title" => "Literature") topic.valid? duped = topic.dup duped.title = nil assert duped.invalid? topic.title = nil duped.title = 'Mathematics' assert topic.invalid? assert duped.valid? end end def test_dup_with_default_scope prev_default_scopes = Topic.default_scopes Topic.default_scopes = [Topic.where(:approved => true)] topic = Topic.new(:approved => false) assert !topic.dup.approved?, "should not be overriden by default scopes" ensure Topic.default_scopes = prev_default_scopes end end end