diff options
Diffstat (limited to 'activerecord/test/cases/nested_attributes_test.rb')
| -rw-r--r-- | activerecord/test/cases/nested_attributes_test.rb | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/activerecord/test/cases/nested_attributes_test.rb b/activerecord/test/cases/nested_attributes_test.rb new file mode 100644 index 0000000000..b982adc4cd --- /dev/null +++ b/activerecord/test/cases/nested_attributes_test.rb @@ -0,0 +1,359 @@ +require "cases/helper" +require "models/pirate" +require "models/ship" +require "models/bird" +require "models/parrot" +require "models/treasure" + +module AssertRaiseWithMessage + def assert_raise_with_message(expected_exception, expected_message) + begin + error_raised = false + yield + rescue expected_exception => error + error_raised = true + actual_message = error.message + end + assert error_raised + assert_equal expected_message, actual_message + end +end + +class TestNestedAttributesInGeneral < ActiveRecord::TestCase + include AssertRaiseWithMessage + + def teardown + Pirate.accepts_nested_attributes_for :ship, :allow_destroy => true + end + + def test_base_should_have_an_empty_reject_new_nested_attributes_procs + assert_equal Hash.new, ActiveRecord::Base.reject_new_nested_attributes_procs + end + + def test_should_add_a_proc_to_reject_new_nested_attributes_procs + [:parrots, :birds].each do |name| + assert_instance_of Proc, Pirate.reject_new_nested_attributes_procs[name] + end + end + + def test_should_raise_an_ArgumentError_for_non_existing_associations + assert_raise_with_message ArgumentError, "No association found for name `honesty'. Has it been defined yet?" do + Pirate.accepts_nested_attributes_for :honesty + end + end + + def test_should_disable_allow_destroy_by_default + Pirate.accepts_nested_attributes_for :ship + + pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + ship = pirate.create_ship(:name => 'Nights Dirty Lightning') + + assert_no_difference('Ship.count') do + pirate.update_attributes(:ship_attributes => { '_delete' => true }) + end + end + + def test_a_model_should_respond_to_underscore_delete_and_return_if_it_is_marked_for_destruction + ship = Ship.create!(:name => 'Nights Dirty Lightning') + assert !ship._delete + ship.mark_for_destruction + assert ship._delete + end +end + +class TestNestedAttributesOnAHasOneAssociation < ActiveRecord::TestCase + def setup + @pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + @ship = @pirate.create_ship(:name => 'Nights Dirty Lightning') + end + + def test_should_define_an_attribute_writer_method_for_the_association + assert_respond_to @pirate, :ship_attributes= + end + + def test_should_automatically_instantiate_an_associated_model_if_there_is_none + @ship.destroy + @pirate.reload.ship_attributes = { :name => 'Davy Jones Gold Dagger' } + + assert @pirate.ship.new_record? + assert_equal 'Davy Jones Gold Dagger', @pirate.ship.name + end + + def test_should_take_a_hash_and_assign_the_attributes_to_the_existing_associated_model + @pirate.ship_attributes = { :name => 'Davy Jones Gold Dagger' } + assert !@pirate.ship.new_record? + assert_equal 'Davy Jones Gold Dagger', @pirate.ship.name + end + + def test_should_also_work_with_a_HashWithIndifferentAccess + @pirate.ship_attributes = HashWithIndifferentAccess.new(:name => 'Davy Jones Gold Dagger') + assert !@pirate.ship.new_record? + assert_equal 'Davy Jones Gold Dagger', @pirate.ship.name + end + + def test_should_work_with_update_attributes_as_well + @pirate.update_attributes({ :catchphrase => 'Arr', :ship_attributes => { :name => 'Mister Pablo' } }) + @pirate.reload + + assert_equal 'Arr', @pirate.catchphrase + assert_equal 'Mister Pablo', @pirate.ship.name + end + + def test_should_be_possible_to_destroy_the_associated_model + @pirate.ship.destroy + ['1', 1, 'true', true].each do |true_variable| + @pirate.reload.create_ship(:name => 'Mister Pablo') + assert_difference('Ship.count', -1) do + @pirate.update_attributes(:ship_attributes => { '_delete' => true_variable }) + end + end + end + + def test_should_not_destroy_the_associated_model_with_a_non_truthy_argument + [nil, '0', 0, 'false', false].each do |false_variable| + assert_no_difference('Ship.count') do + @pirate.update_attributes(:ship_attributes => { '_delete' => false_variable }) + end + end + end + + def test_should_not_destroy_the_associated_model_until_the_parent_is_saved + assert_no_difference('Ship.count') do + @pirate.attributes = { :ship_attributes => { '_delete' => true } } + end + assert_difference('Ship.count', -1) { @pirate.save } + end + + def test_should_automatically_enable_autosave_on_the_association + assert Pirate.reflect_on_association(:ship).options[:autosave] + end +end + +class TestNestedAttributesOnABelongsToAssociation < ActiveRecord::TestCase + def setup + @ship = Ship.create!(:name => 'Nights Dirty Lightning') + @pirate = @ship.create_pirate(:catchphrase => "Don' botharrr talkin' like one, savvy?") + end + + def test_should_define_an_attribute_writer_method_for_the_association + assert_respond_to @ship, :pirate_attributes= + end + + def test_should_automatically_instantiate_an_associated_model_if_there_is_none + @pirate.destroy + @ship.reload.pirate_attributes = { :catchphrase => 'Arr' } + + assert @ship.pirate.new_record? + assert_equal 'Arr', @ship.pirate.catchphrase + end + + def test_should_take_a_hash_and_assign_the_attributes_to_the_existing_associated_model + @ship.pirate_attributes = { :catchphrase => 'Arr' } + assert !@ship.pirate.new_record? + assert_equal 'Arr', @ship.pirate.catchphrase + end + + def test_should_also_work_with_a_HashWithIndifferentAccess + @ship.pirate_attributes = HashWithIndifferentAccess.new(:catchphrase => 'Arr') + assert !@ship.pirate.new_record? + assert_equal 'Arr', @ship.pirate.catchphrase + end + + def test_should_work_with_update_attributes_as_well + @ship.update_attributes({ :name => 'Mister Pablo', :pirate_attributes => { :catchphrase => 'Arr' } }) + @ship.reload + + assert_equal 'Mister Pablo', @ship.name + assert_equal 'Arr', @ship.pirate.catchphrase + end + + def test_should_be_possible_to_destroy_the_associated_model + @ship.pirate.destroy + ['1', 1, 'true', true].each do |true_variable| + @ship.reload.create_pirate(:catchphrase => 'Arr') + assert_difference('Pirate.count', -1) do + @ship.update_attributes(:pirate_attributes => { '_delete' => true_variable }) + end + end + end + + def test_should_not_destroy_the_associated_model_with_a_non_truthy_argument + [nil, '', '0', 0, 'false', false].each do |false_variable| + assert_no_difference('Pirate.count') do + @ship.update_attributes(:pirate_attributes => { '_delete' => false_variable }) + end + end + end + + def test_should_not_destroy_the_associated_model_until_the_parent_is_saved + assert_no_difference('Pirate.count') do + @ship.attributes = { :pirate_attributes => { '_delete' => true } } + end + assert_difference('Pirate.count', -1) { @ship.save } + end + + def test_should_automatically_enable_autosave_on_the_association + assert Ship.reflect_on_association(:pirate).options[:autosave] + end +end + +module NestedAttributesOnACollectionAssociationTests + include AssertRaiseWithMessage + + def test_should_define_an_attribute_writer_method_for_the_association + assert_respond_to @pirate, association_setter + end + + def test_should_take_a_hash_with_string_keys_and_assign_the_attributes_to_the_associated_models + @alternate_params[association_getter].stringify_keys! + @pirate.update_attributes @alternate_params + assert_equal ['Grace OMalley', 'Privateers Greed'], [@child_1.reload.name, @child_2.reload.name] + end + + def test_should_also_work_with_a_HashWithIndifferentAccess + @pirate.send(association_setter, HashWithIndifferentAccess.new(@child_1.id => HashWithIndifferentAccess.new(:name => 'Grace OMalley'))) + @pirate.save + assert_equal 'Grace OMalley', @child_1.reload.name + end + + def test_should_take_a_hash_with_integer_keys_and_assign_the_attributes_to_the_associated_models + @pirate.attributes = @alternate_params + assert_equal 'Grace OMalley', @pirate.send(@association_name).first.name + assert_equal 'Privateers Greed', @pirate.send(@association_name).last.name + end + + def test_should_automatically_build_new_associated_models_for_each_entry_in_a_hash_where_the_id_starts_with_the_string_new_ + @pirate.send(@association_name).destroy_all + @pirate.reload.attributes = { association_getter => { 'new_1' => { :name => 'Grace OMalley' }, 'new_2' => { :name => 'Privateers Greed' }}} + + assert @pirate.send(@association_name).first.new_record? + assert_equal 'Grace OMalley', @pirate.send(@association_name).first.name + + assert @pirate.send(@association_name).last.new_record? + assert_equal 'Privateers Greed', @pirate.send(@association_name).last.name + end + + def test_should_sort_the_hash_by_the_keys_before_building_new_associated_models + attributes = ActiveSupport::OrderedHash.new + attributes['new_123726353'] = { :name => 'Grace OMalley' } + attributes['new_2'] = { :name => 'Privateers Greed' } # 2 is lower then 123726353 + @pirate.send(association_setter, attributes) + + assert_equal ['Posideons Killer', 'Killer bandita Dionne', 'Privateers Greed', 'Grace OMalley'], @pirate.send(@association_name).map(&:name) + end + + def test_should_raise_an_argument_error_if_something_else_than_a_hash_is_passed + assert_nothing_raised(ArgumentError) { @pirate.send(association_setter, {}) } + assert_nothing_raised(ArgumentError) { @pirate.send(association_setter, ActiveSupport::OrderedHash.new) } + + assert_raise_with_message ArgumentError, 'Hash expected, got String ("foo")' do + @pirate.send(association_setter, "foo") + end + assert_raise_with_message ArgumentError, 'Hash expected, got Array ([:foo, :bar])' do + @pirate.send(association_setter, [:foo, :bar]) + end + end + + def test_should_work_with_update_attributes_as_well + @pirate.update_attributes({ :catchphrase => 'Arr', association_getter => { @child_1.id => { :name => 'Grace OMalley' }}}) + assert_equal 'Grace OMalley', @child_1.reload.name + end + + def test_should_automatically_reject_any_new_record_if_a_reject_if_proc_exists_and_returns_false + @alternate_params[association_getter]["new_12345"] = {} + assert_no_difference("@pirate.send(@association_name).length") do + @pirate.attributes = @alternate_params + end + end + + def test_should_update_existing_records_and_add_new_ones_that_have_an_id_that_start_with_the_string_new_ + @alternate_params[association_getter]['new_12345'] = { :name => 'Buccaneers Servant' } + assert_difference('@pirate.send(@association_name).count', +1) do + @pirate.update_attributes @alternate_params + end + assert_equal ['Grace OMalley', 'Privateers Greed', 'Buccaneers Servant'], @pirate.reload.send(@association_name).map(&:name) + end + + def test_should_be_possible_to_destroy_a_record + ['1', 1, 'true', true].each do |true_variable| + record = @pirate.reload.send(@association_name).create!(:name => 'Grace OMalley') + @pirate.send(association_setter, + @alternate_params[association_getter].merge(record.id => { '_delete' => true_variable }) + ) + + assert_difference('@pirate.send(@association_name).count', -1) do + @pirate.save + end + end + end + + def test_should_not_destroy_the_associated_model_with_a_non_truthy_argument + [nil, '', '0', 0, 'false', false].each do |false_variable| + @alternate_params[association_getter][@child_1.id]['_delete'] = false_variable + assert_no_difference('@pirate.send(@association_name).count') do + @pirate.update_attributes(@alternate_params) + end + end + end + + def test_should_not_destroy_the_associated_model_until_the_parent_is_saved + assert_no_difference('@pirate.send(@association_name).count') do + @pirate.send(association_setter, @alternate_params[association_getter].merge(@child_1.id => { '_delete' => true })) + end + assert_difference('@pirate.send(@association_name).count', -1) { @pirate.save } + end + + def test_should_automatically_enable_autosave_on_the_association + assert Pirate.reflect_on_association(@association_name).options[:autosave] + end + + private + + def association_setter + @association_setter ||= "#{@association_name}_attributes=".to_sym + end + + def association_getter + @association_getter ||= "#{@association_name}_attributes".to_sym + end +end + +class TestNestedAttributesOnAHasManyAssociation < ActiveRecord::TestCase + def setup + @association_type = :has_many + @association_name = :birds + + @pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + @child_1 = @pirate.birds.create!(:name => 'Posideons Killer') + @child_2 = @pirate.birds.create!(:name => 'Killer bandita Dionne') + + @alternate_params = { + :birds_attributes => { + @child_1.id => { :name => 'Grace OMalley' }, + @child_2.id => { :name => 'Privateers Greed' } + } + } + end + + include NestedAttributesOnACollectionAssociationTests +end + +class TestNestedAttributesOnAHasAndBelongsToManyAssociation < ActiveRecord::TestCase + def setup + @association_type = :has_and_belongs_to_many + @association_name = :parrots + + @pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + @child_1 = @pirate.parrots.create!(:name => 'Posideons Killer') + @child_2 = @pirate.parrots.create!(:name => 'Killer bandita Dionne') + + @alternate_params = { + :parrots_attributes => { + @child_1.id => { :name => 'Grace OMalley' }, + @child_2.id => { :name => 'Privateers Greed' } + } + } + end + + include NestedAttributesOnACollectionAssociationTests +end
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