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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.order(:id).first
duped = topic.dup
assert !duped.readonly?, 'should not be readonly'
end
def test_is_readonly
topic = Topic.order(:id).first
topic.readonly!
duped = topic.dup
assert duped.readonly?, 'should be readonly'
end
def test_dup_not_persisted
topic = Topic.order(:id).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.order(:id).first
duped = topic.dup
assert_nil duped.id
end
def test_dup_with_modified_attributes
topic = Topic.order(:id).first
topic.author_name = 'Aaron'
duped = topic.dup
assert_equal 'Aaron', duped.author_name
end
def test_dup_with_changes
dbtopic = Topic.order(:id).first
topic = Topic.new
topic.attributes = dbtopic.attributes
#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.order(:id).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.order(:id).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.order(:id).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
end
end
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