require "cases/helper"
require 'models/man'
require 'models/face'
require 'models/interest'
require 'models/zine'
require 'models/club'
require 'models/sponsor'
require 'models/rating'
require 'models/comment'
require 'models/car'
require 'models/bulb'
class AutomaticInverseFindingTests < ActiveRecord::TestCase
fixtures :ratings, :comments, :cars
def test_has_one_and_belongs_to_should_find_inverse_automatically
car_reflection = Car.reflect_on_association(:bulb)
bulb_reflection = Bulb.reflect_on_association(:car)
assert_respond_to car_reflection, :has_inverse?
assert car_reflection.has_inverse?, "The Car reflection should have an inverse"
assert_equal bulb_reflection, car_reflection.inverse_of, "The Car reflection's inverse should be the Bulb reflection"
assert_respond_to bulb_reflection, :has_inverse?
assert bulb_reflection.has_inverse?, "The Bulb reflection should have an inverse"
assert_equal car_reflection, bulb_reflection.inverse_of, "The Bulb reflection's inverse should be the Car reflection"
end
def test_has_many_and_belongs_to_should_find_inverse_automatically
comment_reflection = Comment.reflect_on_association(:ratings)
rating_reflection = Rating.reflect_on_association(:comment)
assert_respond_to comment_reflection, :has_inverse?
assert comment_reflection.has_inverse?, "The Comment reflection should have an inverse"
assert_equal rating_reflection, comment_reflection.inverse_of, "The Comment reflection's inverse should be the Rating reflection"
end
def test_has_one_and_belongs_to_automatic_inverse_shares_objects
car = Car.first
bulb = Bulb.create!(car: car)
assert_equal car.bulb, bulb, "The Car's bulb should be the original bulb"
car.bulb.color = "Blue"
assert_equal car.bulb.color, bulb.color, "Changing the bulb's color on the car association should change the bulb's color"
bulb.color = "Red"
assert_equal bulb.color, car.bulb.color, "Changing the bulb's color should change the bulb's color on the car association"
end
def test_has_many_and_belongs_to_automatic_inverse_shares_objects_on_rating
comment = Comment.first
rating = Rating.create!(comment: comment)
assert_equal rating.comment, comment, "The Rating's comment should be the original Comment"
rating.comment.body = "Brogramming is the act of programming, like a bro."
assert_equal rating.comment.body, comment.body, "Changing the Comment's body on the association should change the original Comment's body"
comment.body = "Broseiden is the king of the sea of bros."
assert_equal comment.body, rating.comment.body, "Changing the original Comment's body should change the Comment's body on the association"
end
def test_has_many_and_belongs_to_automatic_inverse_shares_objects_on_comment
rating = Rating.create!
comment = Comment.first
rating.comment = comment
assert_equal rating.comment, comment, "The Rating's comment should be the original Comment"
rating.comment.body = "Brogramming is the act of programming, like a bro."
assert_equal rating.comment.body, comment.body, "Changing the Comment's body on the association should change the original Comment's body"
comment.body = "Broseiden is the king of the sea of bros."
assert_equal comment.body, rating.comment.body, "Changing the original Comment's body should change the Comment's body on the association"
end
def test_polymorphic_and_has_many_through_relationships_should_not_have_inverses
sponsor_reflection = Sponsor.reflect_on_association(:sponsorable)
assert_respond_to sponsor_reflection, :has_inverse?
assert !sponsor_reflection.has_inverse?, "A polymorphic association should not find an inverse automatically"
club_reflection = Club.reflect_on_association(:members)
assert_respond_to club_reflection, :has_inverse?
assert !club_reflection.has_inverse?, "A has_many_through association should not find an inverse automatically"
end
end
class InverseAssociationTests < ActiveRecord::TestCase
def test_should_allow_for_inverse_of_options_in_associations
assert_nothing_raised(ArgumentError, 'ActiveRecord should allow the inverse_of options on has_many') do
Class.new(ActiveRecord::Base).has_many(:wheels, :inverse_of => :car)
end
assert_nothing_raised(ArgumentError, 'ActiveRecord should allow the inverse_of options on has_one') do
Class.new(ActiveRecord::Base).has_one(:engine, :inverse_of => :car)
end
assert_nothing_raised(ArgumentError, 'ActiveRecord should allow the inverse_of options on belongs_to') do
Class.new(ActiveRecord::Base).belongs_to(:car, :inverse_of => :driver)
end
end
def test_should_be_able_to_ask_a_reflection_if_it_has_an_inverse
has_one_with_inverse_ref = Man.reflect_on_association(:face)
assert_respond_to has_one_with_inverse_ref, :has_inverse?
assert has_one_with_inverse_ref.has_inverse?
has_many_with_inverse_ref = Man.reflect_on_association(:interests)
assert_respond_to has_many_with_inverse_ref, :has_inverse?
assert has_many_with_inverse_ref.has_inverse?
belongs_to_with_inverse_ref = Face.reflect_on_association(:man)
assert_respond_to belongs_to_with_inverse_ref, :has_inverse?
assert belongs_to_with_inverse_ref.has_inverse?
has_one_without_inverse_ref = Club.reflect_on_association(:sponsor)
assert_respond_to has_one_without_inverse_ref, :has_inverse?
assert !has_one_without_inverse_ref.has_inverse?
has_many_without_inverse_ref = Club.reflect_on_association(:memberships)
assert_respond_to has_many_without_inverse_ref, :has_inverse?
assert !has_many_without_inverse_ref.has_inverse?
belongs_to_without_inverse_ref = Sponsor.reflect_on_association(:sponsor_club)
assert_respond_to belongs_to_without_inverse_ref, :has_inverse?
assert !belongs_to_without_inverse_ref.has_inverse?
end
def test_should_be_able_to_ask_a_reflection_what_it_is_the_inverse_of
has_one_ref = Man.reflect_on_association(:face)
assert_respond_to has_one_ref, :inverse_of
has_many_ref = Man.reflect_on_association(:interests)
assert_respond_to has_many_ref, :inverse_of
belongs_to_ref = Face.reflect_on_association(:man)
assert_respond_to belongs_to_ref, :inverse_of
end
def test_inverse_of_method_should_supply_the_actual_reflection_instance_it_is_the_inverse_of
has_one_ref = Man.reflect_on_association(:face)
assert_equal Face.reflect_on_association(:man), has_one_ref.inverse_of
has_many_ref = Man.reflect_on_association(:interests)
assert_equal Interest.reflect_on_association(:man), has_many_ref.inverse_of
belongs_to_ref = Face.reflect_on_association(:man)
assert_equal Man.reflect_on_association(:face), belongs_to_ref.inverse_of
end
def test_associations_with_no_inverse_of_should_return_nil
has_one_ref = Club.reflect_on_association(:sponsor)
assert_nil has_one_ref.inverse_of
has_many_ref = Club.reflect_on_association(:memberships)
assert_nil has_many_ref.inverse_of
belongs_to_ref = Sponsor.reflect_on_association(:sponsor_club)
assert_nil belongs_to_ref.inverse_of
end
end
class InverseHasOneTests < ActiveRecord::TestCase
fixtures :men, :faces
def test_parent_instance_should_be_shared_with_child_on_find
m = men(:gordon)
f = m.face
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to child-owned instance"
end
def test_parent_instance_should_be_shared_with_eager_loaded_child_on_find
m = Man.all.merge!(:where => {:name => 'Gordon'}, :includes => :face).first
f = m.face
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to child-owned instance"
m = Man.all.merge!(:where => {:name => 'Gordon'}, :includes => :face, :order => 'faces.id').first
f = m.face
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to child-owned instance"
end
def test_parent_instance_should_be_shared_with_newly_built_child
m = Man.first
f = m.build_face(:description => 'haunted')
assert_not_nil f.man
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to just-built-child-owned instance"
end
def test_parent_instance_should_be_shared_with_newly_created_child
m = Man.first
f = m.create_face(:description => 'haunted')
assert_not_nil f.man
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to newly-created-child-owned instance"
end
def test_parent_instance_should_be_shared_with_newly_created_child_via_bang_method
m = Man.first
f = m.create_face!(:description => 'haunted')
assert_not_nil f.man
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to newly-created-child-owned instance"
end
def test_parent_instance_should_be_shared_with_replaced_via_accessor_child
m = Man.first
f = Face.new(:description => 'haunted')
m.face = f
assert_not_nil f.man
assert_equal m.name, f.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to parent instance"
f.man.name = 'Mungo'
assert_equal m.name, f.man.name, "Name of man should be the same after changes to replaced-child-owned instance"
end
def test_trying_to_use_inverses_that_dont_exist_should_raise_an_error
assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Man.first.dirty_face }
end
end
class InverseHasManyTests < ActiveRecord::TestCase
fixtures :men, :interests
def test_parent_instance_should_be_shared_with_every_child_on_find
m = men(:gordon)
is = m.interests
is.each do |i|
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to child-owned instance"
end
end
def test_parent_instance_should_be_shared_with_eager_loaded_children
m = Man.all.merge!(:where => {:name => 'Gordon'}, :includes => :interests).first
is = m.interests
is.each do |i|
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to child-owned instance"
end
m = Man.all.merge!(:where => {:name => 'Gordon'}, :includes => :interests, :order => 'interests.id').first
is = m.interests
is.each do |i|
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to child-owned instance"
end
end
def test_parent_instance_should_be_shared_with_newly_block_style_built_child
m = Man.first
i = m.interests.build {|ii| ii.topic = 'Industrial Revolution Re-enactment'}
assert_not_nil i.topic, "Child attributes supplied to build via blocks should be populated"
assert_not_nil i.man
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to just-built-child-owned instance"
end
def test_parent_instance_should_be_shared_with_newly_created_via_bang_method_child
m = Man.first
i = m.interests.create!(:topic => 'Industrial Revolution Re-enactment')
assert_not_nil i.man
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to newly-created-child-owned instance"
end
def test_parent_instance_should_be_shared_with_newly_block_style_created_child
m = Man.first
i = m.interests.create {|ii| ii.topic = 'Industrial Revolution Re-enactment'}
assert_not_nil i.topic, "Child attributes supplied to create via blocks should be populated"
assert_not_nil i.man
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to newly-created-child-owned instance"
end
def test_parent_instance_should_be_shared_within_create_block_of_new_child
man = Man.first
interest = man.interests.build do |i|
assert i.man.equal?(man), "Man of child should be the same instance as a parent"
end
assert interest.man.equal?(man), "Man of the child should still be the same instance as a parent"
end
def test_parent_instance_should_be_shared_within_build_block_of_new_child
man = Man.first
interest = man.interests.build do |i|
assert i.man.equal?(man), "Man of child should be the same instance as a parent"
end
assert interest.man.equal?(man), "Man of the child should still be the same instance as a parent"
end
def test_parent_instance_should_be_shared_with_poked_in_child
m = men(:gordon)
i = Interest.create(:topic => 'Industrial Revolution Re-enactment')
m.interests << i
assert_not_nil i.man
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to newly-created-child-owned instance"
end
def test_parent_instance_should_be_shared_with_replaced_via_accessor_children
m = Man.first
i = Interest.new(:topic => 'Industrial Revolution Re-enactment')
m.interests = [i]
assert_not_nil i.man
assert_equal m.name, i.man.name, "Name of man should be the same before changes to parent instance"
m.name = 'Bongo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to parent instance"
i.man.name = 'Mungo'
assert_equal m.name, i.man.name, "Name of man should be the same after changes to replaced-child-owned instance"
end
def test_parent_instance_should_be_shared_with_first_and_last_child
man = Man.first
assert man.interests.first.man.equal? man
assert man.interests.last.man.equal? man
end
def test_parent_instance_should_be_shared_with_first_n_and_last_n_children
man = Man.first
interests = man.interests.first(2)
assert interests[0].man.equal? man
assert interests[1].man.equal? man
interests = man.interests.last(2)
assert interests[0].man.equal? man
assert interests[1].man.equal? man
end
def test_parent_instance_should_find_child_instance_using_child_instance_id
man = Man.create!
interest = Interest.create!
man.interests = [interest]
assert interest.equal?(man.interests.first), "The inverse association should use the interest already created and held in memory"
assert interest.equal?(man.interests.find(interest.id)), "The inverse association should use the interest already created and held in memory"
assert man.equal?(man.interests.first.man), "Two inversion should lead back to the same object that was originally held"
assert man.equal?(man.interests.find(interest.id).man), "Two inversions should lead back to the same object that was originally held"
end
def test_parent_instance_should_find_child_instance_using_child_instance_id_when_created
man = Man.create!
interest = Interest.create!(man: man)
assert man.equal?(man.interests.first.man), "Two inverses should lead back to the same object that was originally held"
assert man.equal?(man.interests.find(interest.id).man), "Two inversions should lead back to the same object that was originally held"
assert_equal man.name, man.interests.find(interest.id).man.name, "The name of the man should match before the name is changed"
man.name = "Ben Bitdiddle"
assert_equal man.name, man.interests.find(interest.id).man.name, "The name of the man should match after the parent name is changed"
man.interests.find(interest.id).man.name = "Alyssa P. Hacker"
assert_equal man.name, man.interests.find(interest.id).man.name, "The name of the man should match after the child name is changed"
end
def test_find_on_child_instance_with_id_should_not_load_all_child_records
man = Man.create!
interest = Interest.create!(man: man)
man.interests.find(interest.id)
refute man.interests.loaded?
end
def test_raise_record_not_found_error_when_invalid_ids_are_passed
# delete all interest records to ensure that hard coded invalid_id(s)
# are indeed invalid.
Interest.delete_all
man = Man.create!
invalid_id = 245324523
assert_raise(ActiveRecord::RecordNotFound) { man.interests.find(invalid_id) }
invalid_ids = [8432342, 2390102913, 2453245234523452]
assert_raise(ActiveRecord::RecordNotFound) { man.interests.find(invalid_ids) }
end
def test_raise_record_not_found_error_when_no_ids_are_passed
man = Man.create!
assert_raise(ActiveRecord::RecordNotFound) { man.interests.find() }
end
def test_trying_to_use_inverses_that_dont_exist_should_raise_an_error
assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Man.first.secret_interests }
end
end
class InverseBelongsToTests < ActiveRecord::TestCase
fixtures :men, :faces, :interests
def test_child_instance_should_be_shared_with_parent_on_find
f = faces(:trusting)
m = f.man
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to parent-owned instance"
end
def test_eager_loaded_child_instance_should_be_shared_with_parent_on_find
f = Face.all.merge!(:includes => :man, :where => {:description => 'trusting'}).first
m = f.man
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to parent-owned instance"
f = Face.all.merge!(:includes => :man, :order => 'men.id', :where => {:description => 'trusting'}).first
m = f.man
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to parent-owned instance"
end
def test_child_instance_should_be_shared_with_newly_built_parent
f = faces(:trusting)
m = f.build_man(:name => 'Charles')
assert_not_nil m.face
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to just-built-parent-owned instance"
end
def test_child_instance_should_be_shared_with_newly_created_parent
f = faces(:trusting)
m = f.create_man(:name => 'Charles')
assert_not_nil m.face
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to newly-created-parent-owned instance"
end
def test_should_not_try_to_set_inverse_instances_when_the_inverse_is_a_has_many
i = interests(:trainspotting)
m = i.man
assert_not_nil m.interests
iz = m.interests.detect { |_iz| _iz.id == i.id}
assert_not_nil iz
assert_equal i.topic, iz.topic, "Interest topics should be the same before changes to child"
i.topic = 'Eating cheese with a spoon'
assert_not_equal i.topic, iz.topic, "Interest topics should not be the same after changes to child"
iz.topic = 'Cow tipping'
assert_not_equal i.topic, iz.topic, "Interest topics should not be the same after changes to parent-owned instance"
end
def test_child_instance_should_be_shared_with_replaced_via_accessor_parent
f = Face.first
m = Man.new(:name => 'Charles')
f.man = m
assert_not_nil m.face
assert_equal f.description, m.face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to child instance"
m.face.description = 'pleasing'
assert_equal f.description, m.face.description, "Description of face should be the same after changes to replaced-parent-owned instance"
end
def test_trying_to_use_inverses_that_dont_exist_should_raise_an_error
assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Face.first.horrible_man }
end
end
class InversePolymorphicBelongsToTests < ActiveRecord::TestCase
fixtures :men, :faces, :interests
def test_child_instance_should_be_shared_with_parent_on_find
f = Face.all.merge!(:where => {:description => 'confused'}).first
m = f.polymorphic_man
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to child instance"
m.polymorphic_face.description = 'pleasing'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to parent-owned instance"
end
def test_eager_loaded_child_instance_should_be_shared_with_parent_on_find
f = Face.all.merge!(:where => {:description => 'confused'}, :includes => :man).first
m = f.polymorphic_man
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to child instance"
m.polymorphic_face.description = 'pleasing'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to parent-owned instance"
f = Face.all.merge!(:where => {:description => 'confused'}, :includes => :man, :order => 'men.id').first
m = f.polymorphic_man
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same before changes to child instance"
f.description = 'gormless'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to child instance"
m.polymorphic_face.description = 'pleasing'
assert_equal f.description, m.polymorphic_face.description, "Description of face should be the same after changes to parent-owned instance"
end
def test_child_instance_should_be_shared_with_replaced_via_accessor_parent
face = faces(:confused)
new_man = Man.new
assert_not_nil face.polymorphic_man
face.polymorphic_man = new_man
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same before changes to parent instance"
face.description = 'Bongo'
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same after changes to parent instance"
new_man.polymorphic_face.description = 'Mungo'
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same after changes to replaced-parent-owned instance"
end
def test_child_instance_should_be_shared_with_replaced_via_method_parent
face = faces(:confused)
new_man = Man.new
assert_not_nil face.polymorphic_man
face.polymorphic_man = new_man
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same before changes to parent instance"
face.description = 'Bongo'
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same after changes to parent instance"
new_man.polymorphic_face.description = 'Mungo'
assert_equal face.description, new_man.polymorphic_face.description, "Description of face should be the same after changes to replaced-parent-owned instance"
end
def test_should_not_try_to_set_inverse_instances_when_the_inverse_is_a_has_many
i = interests(:llama_wrangling)
m = i.polymorphic_man
assert_not_nil m.polymorphic_interests
iz = m.polymorphic_interests.detect { |_iz| _iz.id == i.id}
assert_not_nil iz
assert_equal i.topic, iz.topic, "Interest topics should be the same before changes to child"
i.topic = 'Eating cheese with a spoon'
assert_not_equal i.topic, iz.topic, "Interest topics should not be the same after changes to child"
iz.topic = 'Cow tipping'
assert_not_equal i.topic, iz.topic, "Interest topics should not be the same after changes to parent-owned instance"
end
def test_trying_to_access_inverses_that_dont_exist_shouldnt_raise_an_error
# Ideally this would, if only for symmetry's sake with other association types
assert_nothing_raised(ActiveRecord::InverseOfAssociationNotFoundError) { Face.first.horrible_polymorphic_man }
end
def test_trying_to_set_polymorphic_inverses_that_dont_exist_at_all_should_raise_an_error
# fails because no class has the correct inverse_of for horrible_polymorphic_man
assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Face.first.horrible_polymorphic_man = Man.first }
end
def test_trying_to_set_polymorphic_inverses_that_dont_exist_on_the_instance_being_set_should_raise_an_error
# passes because Man does have the correct inverse_of
assert_nothing_raised(ActiveRecord::InverseOfAssociationNotFoundError) { Face.first.polymorphic_man = Man.first }
# fails because Interest does have the correct inverse_of
assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Face.first.polymorphic_man = Interest.first }
end
end
# NOTE - these tests might not be meaningful, ripped as they were from the parental_control plugin
# which would guess the inverse rather than look for an explicit configuration option.
class InverseMultipleHasManyInversesForSameModel < ActiveRecord::TestCase
fixtures :men, :interests, :zines
def test_that_we_can_load_associations_that_have_the_same_reciprocal_name_from_different_models
assert_nothing_raised(ActiveRecord::AssociationTypeMismatch) do
i = Interest.first
i.zine
i.man
end
end
def test_that_we_can_create_associations_that_have_the_same_reciprocal_name_from_different_models
assert_nothing_raised(ActiveRecord::AssociationTypeMismatch) do
i = Interest.first
i.build_zine(:title => 'Get Some in Winter! 2008')
i.build_man(:name => 'Gordon')
i.save!
end
end
end
