727 lines
26 KiB
Ruby
727 lines
26 KiB
Ruby
require 'test_helper'
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require 'time_travel_helper'
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class AssociationsTest < ActiveSupport::TestCase
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CHAPTER_NAMES = [
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"Down the Rabbit-Hole",
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"The Pool of Tears",
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"A Caucus-Race and a Long Tale",
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"The Rabbit Sends in a Little Bill",
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"Advice from a Caterpillar",
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"Pig and Pepper",
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"A Mad Tea-Party",
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"The Queen's Croquet-Ground",
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"The Mock Turtle's Story",
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"The Lobster Quadrille",
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"Who Stole the Tarts?",
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"Alice's Evidence"
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]
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# These would have been done in test_helper.rb if using_mysql? is true
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unless using_mysql?
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self.use_transactional_fixtures = false
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setup { DatabaseCleaner.start }
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end
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teardown do
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Timecop.return
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# This would have been done in test_helper.rb if using_mysql? is true
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DatabaseCleaner.clean unless using_mysql?
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end
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context "a has_one association" do
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setup { @widget = Widget.create :name => 'widget_0' }
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context 'before the associated was created' do
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setup do
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@widget.update_attributes :name => 'widget_1'
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@wotsit = @widget.create_wotsit :name => 'wotsit_0'
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end
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context 'when reified' do
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setup { @widget_0 = @widget.versions.last.reify(:has_one => true) }
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should 'see the associated as it was at the time' do
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assert_nil @widget_0.wotsit
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end
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should 'not persist changes to the live association' do
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assert_equal @wotsit, @widget.wotsit(true)
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end
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end
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end
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context 'where the association is created between model versions' do
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setup do
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@wotsit = @widget.create_wotsit :name => 'wotsit_0'
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Timecop.travel 1.second.since
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@widget.update_attributes :name => 'widget_1'
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end
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context 'when reified' do
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setup { @widget_0 = @widget.versions.last.reify(:has_one => true) }
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should 'see the associated as it was at the time' do
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assert_equal 'wotsit_0', @widget_0.wotsit.name
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end
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should 'not persist changes to the live association' do
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assert_equal @wotsit, @widget.wotsit(true)
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end
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end
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context 'and then the associated is updated between model versions' do
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setup do
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@wotsit.update_attributes :name => 'wotsit_1'
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@wotsit.update_attributes :name => 'wotsit_2'
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Timecop.travel 1.second.since
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@widget.update_attributes :name => 'widget_2'
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@wotsit.update_attributes :name => 'wotsit_3'
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end
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context 'when reified' do
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setup { @widget_1 = @widget.versions.last.reify(:has_one => true) }
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should 'see the associated as it was at the time' do
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assert_equal 'wotsit_2', @widget_1.wotsit.name
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end
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should 'not persist changes to the live association' do
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assert_equal 'wotsit_3', @widget.wotsit(true).name
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end
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end
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context 'when reified opting out of has_one reification' do
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setup { @widget_1 = @widget.versions.last.reify(:has_one => false) }
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should 'see the associated as it is live' do
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assert_equal 'wotsit_3', @widget_1.wotsit.name
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end
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end
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end
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context 'and then the associated is destroyed' do
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setup do
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@wotsit.destroy
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end
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context 'when reify' do
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setup { @widget_1 = @widget.versions.last.reify(:has_one => true) }
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should 'see the associated as it was at the time' do
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assert_equal @wotsit, @widget_1.wotsit
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end
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should 'not persist changes to the live association' do
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assert_nil @widget.wotsit(true)
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end
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end
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context 'and then the model is updated' do
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setup do
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Timecop.travel 1.second.since
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@widget.update_attributes :name => 'widget_3'
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end
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context 'when reified' do
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setup { @widget_2 = @widget.versions.last.reify(:has_one => true) }
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should 'see the associated as it was at the time' do
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assert_nil @widget_2.wotsit
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end
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end
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end
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end
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end
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end
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context "a has_many association" do
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setup { @customer = Customer.create :name => 'customer_0' }
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context 'updated before the associated was created' do
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setup do
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@customer.update_attributes! :name => 'customer_1'
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@customer.orders.create! :order_date => Date.today
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end
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context 'when reified' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @customer_0.orders
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end
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should 'not persist changes to the live association' do
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assert_not_equal [], @customer.orders(true)
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'mark the associated for destruction' do
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assert_equal [true], @customer_0.orders.map(&:marked_for_destruction?)
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end
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end
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end
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context 'where the association is created between model versions' do
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setup do
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@order = @customer.orders.create! :order_date => 'order_date_0'
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Timecop.travel 1.second.since
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@customer.update_attributes :name => 'customer_1'
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end
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context 'when reified' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['order_date_0'], @customer_0.orders.map(&:order_date)
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end
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end
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context 'and then a nested has_many association is created' do
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setup do
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@order.line_items.create! :product => 'product_0'
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end
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context 'when reified' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true) }
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should 'see the live version of the nested association' do
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assert_equal ['product_0'], @customer_0.orders.first.line_items.map(&:product)
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end
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end
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end
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context 'and then the associated is updated between model versions' do
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setup do
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@order.update_attributes :order_date => 'order_date_1'
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@order.update_attributes :order_date => 'order_date_2'
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Timecop.travel 1.second.since
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@customer.update_attributes :name => 'customer_2'
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@order.update_attributes :order_date => 'order_date_3'
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end
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context 'when reified' do
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setup { @customer_1 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['order_date_2'], @customer_1.orders.map(&:order_date)
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end
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should 'not persist changes to the live association' do
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assert_equal ['order_date_3'], @customer.orders(true).map(&:order_date)
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end
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end
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context 'when reified opting out of has_many reification' do
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setup { @customer_1 = @customer.versions.last.reify(:has_many => false) }
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should 'see the associated as it is live' do
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assert_equal ['order_date_3'], @customer_1.orders.map(&:order_date)
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end
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end
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context 'and then the associated is destroyed' do
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setup do
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@order.destroy
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end
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context 'when reified' do
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setup { @customer_1 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['order_date_2'], @customer_1.orders.map(&:order_date)
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end
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should 'not persist changes to the live association' do
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assert_equal [], @customer.orders(true)
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end
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end
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end
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end
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context 'and then the associated is destroyed' do
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setup do
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@order.destroy
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end
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context 'when reified' do
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setup { @customer_1 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [@order.order_date], @customer_1.orders.map(&:order_date)
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end
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should 'not persist changes to the live association' do
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assert_equal [], @customer.orders(true)
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end
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end
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end
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context 'and then the associated is destroyed between model versions' do
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setup do
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@order.destroy
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Timecop.travel 1.second.since
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@customer.update_attributes :name => 'customer_2'
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end
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context 'when reified' do
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setup { @customer_1 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @customer_1.orders
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end
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end
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end
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context 'and then another association is added' do
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setup do
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@customer.orders.create! :order_date => 'order_date_1'
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end
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context 'when reified' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['order_date_0'], @customer_0.orders.map(&:order_date)
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end
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should 'not persist changes to the live association' do
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assert_equal ['order_date_0', 'order_date_1'], @customer.orders(true).map(&:order_date).sort
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @customer_0 = @customer.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'mark the newly associated for destruction' do
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assert @customer_0.orders.detect { |o| o.order_date == 'order_date_1'}.marked_for_destruction?
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end
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end
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end
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end
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end
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context "has_many through associations" do
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context "Books, Authors, and Authorships" do
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setup { @book = Book.create :title => 'book_0' }
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context 'updated before the associated was created' do
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setup do
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@book.update_attributes! :title => 'book_1'
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@book.authors.create! :name => 'author_0'
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end
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context 'when reified' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @book_0.authors
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end
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should 'not persist changes to the live association' do
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assert_equal ['author_0'], @book.authors(true).map(&:name)
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'mark the associated for destruction' do
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assert_equal [true], @book_0.authors.map(&:marked_for_destruction?)
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end
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should 'mark the associated-through for destruction' do
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assert_equal [true], @book_0.authorships.map(&:marked_for_destruction?)
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end
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end
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end
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context 'updated before it is associated with an existing one' do
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setup do
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person_existing = Person.create(:name => 'person_existing')
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Timecop.travel 1.second.since
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@book.update_attributes! :title => 'book_1'
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@book.authors << person_existing
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end
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context 'when reified' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @book_0.authors
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'not mark the associated for destruction' do
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assert_equal [false], @book_0.authors.map(&:marked_for_destruction?)
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end
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should 'mark the associated-through for destruction' do
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assert_equal [true], @book_0.authorships.map(&:marked_for_destruction?)
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end
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end
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end
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context 'where the association is created between model versions' do
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setup do
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@author = @book.authors.create! :name => 'author_0'
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@person_existing = Person.create(:name => 'person_existing')
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Timecop.travel 1.second.since
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@book.update_attributes! :title => 'book_1'
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end
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context 'when reified' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['author_0'], @book_0.authors.map(&:name)
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end
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end
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context 'and then the associated is updated between model versions' do
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setup do
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@author.update_attributes :name => 'author_1'
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@author.update_attributes :name => 'author_2'
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Timecop.travel 1.second.since
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@book.update_attributes :title => 'book_2'
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@author.update_attributes :name => 'author_3'
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end
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context 'when reified' do
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setup { @book_1 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal ['author_2'], @book_1.authors.map(&:name)
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end
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should 'not persist changes to the live association' do
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assert_equal ['author_3'], @book.authors(true).map(&:name)
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end
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end
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context 'when reified opting out of has_many reification' do
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setup { @book_1 = @book.versions.last.reify(:has_many => false) }
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should 'see the associated as it is live' do
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assert_equal ['author_3'], @book_1.authors.map(&:name)
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end
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end
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end
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context 'and then the associated is destroyed' do
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setup do
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@author.destroy
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end
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context 'when reified' do
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setup { @book_1 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [@author.name], @book_1.authors.map(&:name)
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end
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should 'not persist changes to the live association' do
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assert_equal [], @book.authors(true)
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end
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end
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end
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context 'and then the associated is destroyed between model versions' do
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setup do
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@author.destroy
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Timecop.travel 1.second.since
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@book.update_attributes :title => 'book_2'
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end
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context 'when reified' do
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setup { @book_1 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @book_1.authors
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end
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end
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end
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context 'and then the associated is dissociated between model versions' do
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setup do
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@book.authors = []
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Timecop.travel 1.second.since
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@book.update_attributes :title => 'book_2'
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end
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context 'when reified' do
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setup { @book_1 = @book.versions.last.reify(:has_many => true) }
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should 'see the associated as it was at the time' do
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assert_equal [], @book_1.authors
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end
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end
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end
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context 'and then another associated is created' do
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setup do
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@book.authors.create! :name => 'author_1'
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end
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context 'when reified' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true) }
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should 'only see the first associated' do
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assert_equal ['author_0'], @book_0.authors.map(&:name)
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end
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should 'not persist changes to the live association' do
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assert_equal ['author_0', 'author_1'], @book.authors(true).map(&:name)
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'mark the newly associated for destruction' do
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assert @book_0.authors.detect { |a| a.name == 'author_1' }.marked_for_destruction?
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end
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should 'mark the newly associated-through for destruction' do
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assert @book_0.authorships.detect { |as| as.person.name == 'author_1' }.marked_for_destruction?
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end
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end
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end
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context 'and then an existing one is associated' do
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setup do
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@book.authors << @person_existing
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end
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context 'when reified' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true) }
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should 'only see the first associated' do
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assert_equal ['author_0'], @book_0.authors.map(&:name)
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end
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should 'not persist changes to the live association' do
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assert_equal ['author_0', 'person_existing'], @book.authors(true).map(&:name).sort
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end
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end
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context 'when reified with option mark_for_destruction' do
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setup { @book_0 = @book.versions.last.reify(:has_many => true, :mark_for_destruction => true) }
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should 'not mark the newly associated for destruction' do
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assert !@book_0.authors.detect { |a| a.name == 'person_existing' }.marked_for_destruction?
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end
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should 'mark the newly associated-through for destruction' do
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assert @book_0.authorships.detect { |as| as.person.name == 'person_existing' }.marked_for_destruction?
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end
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end
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end
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end
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context 'updated before the associated without paper_trail was created' do
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setup do
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@book.update_attributes! :title => 'book_1'
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@book.editors.create! :name => 'editor_0'
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end
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|
context 'when reified' do
|
|
setup { @book_0 = @book.versions.last.reify(:has_many => true) }
|
|
|
|
should 'see the live association' do
|
|
assert_equal ['editor_0'], @book_0.editors.map(&:name)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
context "Chapters, Sections, Paragraphs, Quotations, and Citations" do
|
|
setup { @chapter = Chapter.create(:name => CHAPTER_NAMES[0]) }
|
|
|
|
context "before any associations are created" do
|
|
setup do
|
|
@chapter.update_attributes(:name => CHAPTER_NAMES[1])
|
|
end
|
|
|
|
should "not reify any associations" do
|
|
chapter_v1 = @chapter.versions[1].reify(:has_many => true)
|
|
assert_equal CHAPTER_NAMES[0], chapter_v1.name
|
|
assert_equal [], chapter_v1.sections
|
|
assert_equal [], chapter_v1.paragraphs
|
|
end
|
|
end
|
|
|
|
context "after the first has_many through relationship is created" do
|
|
setup do
|
|
assert_equal 1, @chapter.versions.size
|
|
@chapter.update_attributes :name => CHAPTER_NAMES[1]
|
|
assert_equal 2, @chapter.versions.size
|
|
|
|
Timecop.travel 1.second.since
|
|
@chapter.sections.create :name => "section 1"
|
|
Timecop.travel 1.second.since
|
|
@chapter.sections.first.update_attributes :name => "section 2"
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes :name => CHAPTER_NAMES[2]
|
|
assert_equal 3, @chapter.versions.size
|
|
|
|
Timecop.travel 1.second.since
|
|
@chapter.sections.first.update_attributes :name => "section 3"
|
|
end
|
|
|
|
context "version 1" do
|
|
should "have no sections" do
|
|
chapter_v1 = @chapter.versions[1].reify(:has_many => true)
|
|
assert_equal [], chapter_v1.sections
|
|
end
|
|
end
|
|
|
|
context "version 2" do
|
|
should "have one section" do
|
|
chapter_v2 = @chapter.versions[2].reify(:has_many => true)
|
|
assert_equal 1, chapter_v2.sections.size
|
|
|
|
# Shows the value of the section as it was before
|
|
# the chapter was updated.
|
|
assert_equal ['section 2'], chapter_v2.sections.map(&:name)
|
|
|
|
# Shows the value of the chapter as it was before
|
|
assert_equal CHAPTER_NAMES[1], chapter_v2.name
|
|
end
|
|
end
|
|
|
|
context "version 2, before the section was destroyed" do
|
|
setup do
|
|
@chapter.update_attributes :name => CHAPTER_NAMES[2]
|
|
Timecop.travel 1.second.since
|
|
@chapter.sections.destroy_all
|
|
Timecop.travel 1.second.since
|
|
end
|
|
|
|
should "have the one section" do
|
|
chapter_v2 = @chapter.versions[2].reify(:has_many => true)
|
|
assert_equal ['section 2'], chapter_v2.sections.map(&:name)
|
|
end
|
|
end
|
|
|
|
context "version 3, after the section was destroyed" do
|
|
setup do
|
|
@chapter.sections.destroy_all
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes :name => CHAPTER_NAMES[3]
|
|
Timecop.travel 1.second.since
|
|
end
|
|
|
|
should "have no sections" do
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
assert_equal 0, chapter_v3.sections.size
|
|
end
|
|
end
|
|
|
|
context "after creating a paragraph" do
|
|
setup do
|
|
assert_equal 3, @chapter.versions.size
|
|
@section = @chapter.sections.first
|
|
Timecop.travel 1.second.since
|
|
@paragraph = @section.paragraphs.create :name => 'para1'
|
|
end
|
|
|
|
context "new chapter version" do
|
|
should "have one paragraph" do
|
|
initial_section_name = @section.name
|
|
initial_paragraph_name = @paragraph.name
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes :name => CHAPTER_NAMES[4]
|
|
assert_equal 4, @chapter.versions.size
|
|
Timecop.travel 1.second.since
|
|
@paragraph.update_attributes :name => 'para3'
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
assert_equal [initial_section_name], chapter_v3.sections.map(&:name)
|
|
paragraphs = chapter_v3.sections.first.paragraphs
|
|
assert_equal 1, paragraphs.size
|
|
assert_equal [initial_paragraph_name], paragraphs.map(&:name)
|
|
end
|
|
end
|
|
|
|
context "the version before a section is destroyed" do
|
|
should "have the section and paragraph" do
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes(:name => CHAPTER_NAMES[3])
|
|
assert_equal 4, @chapter.versions.size
|
|
Timecop.travel 1.second.since
|
|
@section.destroy
|
|
assert_equal 4, @chapter.versions.size
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
assert_equal CHAPTER_NAMES[2], chapter_v3.name
|
|
assert_equal [@section], chapter_v3.sections
|
|
assert_equal [@paragraph], chapter_v3.sections[0].paragraphs
|
|
assert_equal [@paragraph], chapter_v3.paragraphs
|
|
end
|
|
end
|
|
|
|
context "the version after a section is destroyed" do
|
|
should "not have any sections or paragraphs" do
|
|
@section.destroy
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes(:name => CHAPTER_NAMES[5])
|
|
assert_equal 4, @chapter.versions.size
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
assert_equal 0, chapter_v3.sections.size
|
|
assert_equal 0, chapter_v3.paragraphs.size
|
|
end
|
|
end
|
|
|
|
context "the version before a paragraph is destroyed" do
|
|
should "have the one paragraph" do
|
|
initial_paragraph_name = @section.paragraphs.first.name
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes(:name => CHAPTER_NAMES[5])
|
|
Timecop.travel 1.second.since
|
|
@paragraph.destroy
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
paragraphs = chapter_v3.sections.first.paragraphs
|
|
assert_equal 1, paragraphs.size
|
|
assert_equal initial_paragraph_name, paragraphs.first.name
|
|
end
|
|
end
|
|
|
|
context "the version after a paragraph is destroyed" do
|
|
should "have no paragraphs" do
|
|
@paragraph.destroy
|
|
Timecop.travel 1.second.since
|
|
@chapter.update_attributes(:name => CHAPTER_NAMES[5])
|
|
chapter_v3 = @chapter.versions[3].reify(:has_many => true)
|
|
assert_equal 0, chapter_v3.paragraphs.size
|
|
assert_equal [], chapter_v3.sections.first.paragraphs
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
context "a chapter with one paragraph and one citation" do
|
|
should "reify paragraphs and citations" do
|
|
chapter = Chapter.create(:name => CHAPTER_NAMES[0])
|
|
section = Section.create(:name => 'Section One', :chapter => chapter)
|
|
paragraph = Paragraph.create(:name => 'Paragraph One', :section => section)
|
|
quotation = Quotation.create(:chapter => chapter)
|
|
citation = Citation.create(:quotation => quotation)
|
|
Timecop.travel 1.second.since
|
|
chapter.update_attributes(:name => CHAPTER_NAMES[1])
|
|
assert_equal 2, chapter.versions.count
|
|
paragraph.destroy
|
|
citation.destroy
|
|
reified = chapter.versions[1].reify(:has_many => true)
|
|
assert_equal [paragraph], reified.sections.first.paragraphs
|
|
assert_equal [citation], reified.quotations.first.citations
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|