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-rw-r--r--activerecord/test/cases/associations/eager_load_nested_include_test.rb24
-rw-r--r--activerecord/test/cases/associations/eager_test.rb16
-rw-r--r--activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb1
-rw-r--r--activerecord/test/cases/associations/has_many_associations_test.rb39
-rw-r--r--activerecord/test/cases/associations/has_many_through_associations_test.rb56
-rw-r--r--activerecord/test/cases/associations/has_one_through_associations_test.rb9
-rw-r--r--activerecord/test/cases/associations/inverse_associations_test.rb313
7 files changed, 420 insertions, 38 deletions
diff --git a/activerecord/test/cases/associations/eager_load_nested_include_test.rb b/activerecord/test/cases/associations/eager_load_nested_include_test.rb
index 1b2e0fc11e..f313a75233 100644
--- a/activerecord/test/cases/associations/eager_load_nested_include_test.rb
+++ b/activerecord/test/cases/associations/eager_load_nested_include_test.rb
@@ -1,18 +1,18 @@
require 'cases/helper'
-require 'models/author'
require 'models/post'
+require 'models/author'
require 'models/comment'
require 'models/category'
require 'models/categorization'
+require 'active_support/core_ext/array/random_access'
module Remembered
- def self.included(base)
- base.extend ClassMethods
- base.class_eval do
- after_create :remember
- protected
- def remember; self.class.remembered << self; end
- end
+ extend ActiveSupport::Concern
+
+ included do
+ after_create :remember
+ protected
+ def remember; self.class.remembered << self; end
end
module ClassMethods
@@ -66,13 +66,13 @@ class EagerLoadPolyAssocsTest < ActiveRecord::TestCase
def setup
generate_test_object_graphs
end
-
+
def teardown
- [Circle, Square, Triangle, PaintColor, PaintTexture,
+ [Circle, Square, Triangle, PaintColor, PaintTexture,
ShapeExpression, NonPolyOne, NonPolyTwo].each do |c|
c.delete_all
end
-
+
end
@@ -127,4 +127,4 @@ class EagerLoadNestedIncludeWithMissingDataTest < ActiveRecord::TestCase
Author.all :include => includes, :conditions => {:authors => {:name => @davey_mcdave.name}}, :order => 'categories.name'
end
end
-end \ No newline at end of file
+end
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb
index 40723814c5..4cf49be668 100644
--- a/activerecord/test/cases/associations/eager_test.rb
+++ b/activerecord/test/cases/associations/eager_test.rb
@@ -223,6 +223,18 @@ class EagerAssociationTest < ActiveRecord::TestCase
end
end
+ def test_eager_association_loading_with_belongs_to_and_conditions_hash
+ comments = []
+ assert_nothing_raised do
+ comments = Comment.find(:all, :include => :post, :conditions => {:posts => {:id => 4}}, :limit => 3, :order => 'comments.id')
+ end
+ assert_equal 3, comments.length
+ assert_equal [5,6,7], comments.collect { |c| c.id }
+ assert_no_queries do
+ comments.first.post
+ end
+ end
+
def test_eager_association_loading_with_belongs_to_and_conditions_string_with_quoted_table_name
quoted_posts_id= Comment.connection.quote_table_name('posts') + '.' + Comment.connection.quote_column_name('id')
assert_nothing_raised do
@@ -577,6 +589,10 @@ class EagerAssociationTest < ActiveRecord::TestCase
assert_equal posts(:sti_post_and_comments, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => 'UPPER(posts.title) DESC, posts.id', :limit => 2, :offset => 1)
end
+ def test_limited_eager_with_numeric_in_association
+ assert_equal people(:david, :susan), Person.find(:all, :include => [:readers, :primary_contact, :number1_fan], :conditions => "number1_fans_people.first_name like 'M%'", :order => 'people.id', :limit => 2, :offset => 0)
+ end
+
def test_preload_with_interpolation
assert_equal [comments(:greetings)], Post.find(posts(:welcome).id, :include => :comments_with_interpolated_conditions).comments_with_interpolated_conditions
end
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index 5e8b2cadfc..8dc95806b9 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -24,6 +24,7 @@ require 'models/club'
require 'models/member'
require 'models/membership'
require 'models/sponsor'
+require 'active_support/core_ext/string/conversions'
class ProjectWithAfterCreateHook < ActiveRecord::Base
set_table_name 'projects'
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index 5df74fcdcd..d99424f9cd 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -1023,6 +1023,45 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
assert firm.clients.loaded?
end
+ def test_calling_many_should_count_instead_of_loading_association
+ firm = companies(:first_firm)
+ assert_queries(1) do
+ firm.clients.many? # use count query
+ end
+ assert !firm.clients.loaded?
+ end
+
+ def test_calling_many_on_loaded_association_should_not_use_query
+ firm = companies(:first_firm)
+ firm.clients.collect # force load
+ assert_no_queries { assert firm.clients.many? }
+ end
+
+ def test_calling_many_should_defer_to_collection_if_using_a_block
+ firm = companies(:first_firm)
+ assert_queries(1) do
+ firm.clients.expects(:size).never
+ firm.clients.many? { true }
+ end
+ assert firm.clients.loaded?
+ end
+
+ def test_calling_many_should_return_false_if_none_or_one
+ firm = companies(:another_firm)
+ assert !firm.clients_like_ms.many?
+ assert_equal 0, firm.clients_like_ms.size
+
+ firm = companies(:first_firm)
+ assert !firm.limited_clients.many?
+ assert_equal 1, firm.limited_clients.size
+ end
+
+ def test_calling_many_should_return_true_if_more_than_one
+ firm = companies(:first_firm)
+ assert firm.clients.many?
+ assert_equal 2, firm.clients.size
+ end
+
def test_joins_with_namespaced_model_should_use_correct_type
old = ActiveRecord::Base.store_full_sti_class
ActiveRecord::Base.store_full_sti_class = true
diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb
index 97efca7891..4254badef2 100644
--- a/activerecord/test/cases/associations/has_many_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb
@@ -13,7 +13,7 @@ require 'models/pet'
require 'models/toy'
class HasManyThroughAssociationsTest < ActiveRecord::TestCase
- fixtures :posts, :readers, :people, :comments, :authors, :owners, :pets, :toys
+ fixtures :posts, :readers, :people, :comments, :authors, :owners, :pets, :toys, :jobs, :references
def test_associate_existing
assert_queries(2) { posts(:thinking);people(:david) }
@@ -23,49 +23,49 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
assert_queries(1) do
posts(:thinking).people << people(:david)
end
-
+
assert_queries(1) do
assert posts(:thinking).people.include?(people(:david))
end
-
+
assert posts(:thinking).reload.people(true).include?(people(:david))
end
def test_associating_new
assert_queries(1) { posts(:thinking) }
new_person = nil # so block binding catches it
-
+
assert_queries(0) do
new_person = Person.new :first_name => 'bob'
end
-
+
# Associating new records always saves them
# Thus, 1 query for the new person record, 1 query for the new join table record
assert_queries(2) do
posts(:thinking).people << new_person
end
-
+
assert_queries(1) do
assert posts(:thinking).people.include?(new_person)
end
-
+
assert posts(:thinking).reload.people(true).include?(new_person)
end
def test_associate_new_by_building
assert_queries(1) { posts(:thinking) }
-
+
assert_queries(0) do
posts(:thinking).people.build(:first_name=>"Bob")
posts(:thinking).people.new(:first_name=>"Ted")
end
-
+
# Should only need to load the association once
assert_queries(1) do
assert posts(:thinking).people.collect(&:first_name).include?("Bob")
assert posts(:thinking).people.collect(&:first_name).include?("Ted")
end
-
+
# 2 queries for each new record (1 to save the record itself, 1 for the join model)
# * 2 new records = 4
# + 1 query to save the actual post = 5
@@ -73,27 +73,27 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
posts(:thinking).body += '-changed'
posts(:thinking).save
end
-
+
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Bob")
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Ted")
end
def test_delete_association
assert_queries(2){posts(:welcome);people(:michael); }
-
+
assert_queries(1) do
posts(:welcome).people.delete(people(:michael))
end
-
+
assert_queries(1) do
assert posts(:welcome).people.empty?
end
-
+
assert posts(:welcome).reload.people(true).empty?
end
def test_destroy_association
- assert_difference "Person.count", -1 do
+ assert_difference ["Person.count", "Reader.count"], -1 do
posts(:welcome).people.destroy(people(:michael))
end
@@ -102,7 +102,7 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
end
def test_destroy_all
- assert_difference "Person.count", -1 do
+ assert_difference ["Person.count", "Reader.count"], -1 do
posts(:welcome).people.destroy_all
end
@@ -110,38 +110,44 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
assert posts(:welcome).people(true).empty?
end
+ def test_should_raise_exception_for_destroying_mismatching_records
+ assert_no_difference ["Person.count", "Reader.count"] do
+ assert_raise(ActiveRecord::AssociationTypeMismatch) { posts(:welcome).people.destroy(posts(:thinking)) }
+ end
+ end
+
def test_replace_association
assert_queries(4){posts(:welcome);people(:david);people(:michael); posts(:welcome).people(true)}
-
+
# 1 query to delete the existing reader (michael)
# 1 query to associate the new reader (david)
assert_queries(2) do
posts(:welcome).people = [people(:david)]
end
-
+
assert_queries(0){
assert posts(:welcome).people.include?(people(:david))
assert !posts(:welcome).people.include?(people(:michael))
}
-
+
assert posts(:welcome).reload.people(true).include?(people(:david))
assert !posts(:welcome).reload.people(true).include?(people(:michael))
end
def test_associate_with_create
assert_queries(1) { posts(:thinking) }
-
+
# 1 query for the new record, 1 for the join table record
# No need to update the actual collection yet!
assert_queries(2) do
posts(:thinking).people.create(:first_name=>"Jeb")
end
-
+
# *Now* we actually need the collection so it's loaded
assert_queries(1) do
assert posts(:thinking).people.collect(&:first_name).include?("Jeb")
end
-
+
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Jeb")
end
@@ -159,15 +165,15 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
def test_clear_associations
assert_queries(2) { posts(:welcome);posts(:welcome).people(true) }
-
+
assert_queries(1) do
posts(:welcome).people.clear
end
-
+
assert_queries(0) do
assert posts(:welcome).people.empty?
end
-
+
assert posts(:welcome).reload.people(true).empty?
end
diff --git a/activerecord/test/cases/associations/has_one_through_associations_test.rb b/activerecord/test/cases/associations/has_one_through_associations_test.rb
index 12c598751b..ab6e6d20fc 100644
--- a/activerecord/test/cases/associations/has_one_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_through_associations_test.rb
@@ -43,7 +43,14 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
@member.reload
end
end
-
+
+ def test_set_record_to_nil_should_delete_association
+ @member.club = nil
+ @member.reload
+ assert_equal nil, @member.current_membership
+ assert_nil @member.club
+ end
+
def test_has_one_through_polymorphic
assert_equal clubs(:moustache_club), @member.sponsor_club
end
diff --git a/activerecord/test/cases/associations/inverse_associations_test.rb b/activerecord/test/cases/associations/inverse_associations_test.rb
new file mode 100644
index 0000000000..47f83db112
--- /dev/null
+++ b/activerecord/test/cases/associations/inverse_associations_test.rb
@@ -0,0 +1,313 @@
+require "cases/helper"
+require 'models/man'
+require 'models/face'
+require 'models/interest'
+require 'models/zine'
+require 'models/club'
+require 'models/sponsor'
+
+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 has_one_with_inverse_ref.respond_to?(:has_inverse?)
+ assert has_one_with_inverse_ref.has_inverse?
+
+ has_many_with_inverse_ref = Man.reflect_on_association(:interests)
+ assert has_many_with_inverse_ref.respond_to?(:has_inverse?)
+ assert has_many_with_inverse_ref.has_inverse?
+
+ belongs_to_with_inverse_ref = Face.reflect_on_association(:man)
+ assert belongs_to_with_inverse_ref.respond_to?(:has_inverse?)
+ assert belongs_to_with_inverse_ref.has_inverse?
+
+ has_one_without_inverse_ref = Club.reflect_on_association(:sponsor)
+ assert has_one_without_inverse_ref.respond_to?(:has_inverse?)
+ assert !has_one_without_inverse_ref.has_inverse?
+
+ has_many_without_inverse_ref = Club.reflect_on_association(:memberships)
+ assert has_many_without_inverse_ref.respond_to?(:has_inverse?)
+ assert !has_many_without_inverse_ref.has_inverse?
+
+ belongs_to_without_inverse_ref = Sponsor.reflect_on_association(:sponsor_club)
+ assert belongs_to_without_inverse_ref.respond_to?(: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 has_one_ref.respond_to?(:inverse_of)
+
+ has_many_ref = Man.reflect_on_association(:interests)
+ assert has_many_ref.respond_to?(:inverse_of)
+
+ belongs_to_ref = Face.reflect_on_association(:man)
+ assert belongs_to_ref.respond_to?(: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 = Man.find(: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_eager_loaded_child_on_find
+ m = Man.find(:first, :include => :face)
+ 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.find(:first, :include => :face, :order => 'faces.id')
+ 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.find(: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.find(: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_trying_to_use_inverses_that_dont_exist_should_raise_an_error
+ assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Man.find(: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 = Man.find(: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_eager_loaded_children
+ m = Man.find(:first, :include => :interests)
+ 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.find(:first, :include => :interests, :order => 'interests.id')
+ 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_built_child
+ m = Man.find(:first)
+ i = m.interests.build(: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 just-built-child-owned instance"
+ end
+
+ def test_parent_instance_should_be_shared_with_newly_created_child
+ m = Man.find(: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_poked_in_child
+ m = Man.find(:first)
+ 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_trying_to_use_inverses_that_dont_exist_should_raise_an_error
+ assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Man.find(: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 = Face.find(: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_eager_loaded_child_instance_should_be_shared_with_parent_on_find
+ f = Face.find(:first, :include => :man)
+ 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.find(:first, :include => :man, :order => 'men.id')
+ 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 = Face.find(:first)
+ 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 = Face.find(:first)
+ 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 = Interest.find(:first)
+ 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_trying_to_use_inverses_that_dont_exist_should_raise_an_error
+ assert_raise(ActiveRecord::InverseOfAssociationNotFoundError) { Face.find(:first).horrible_man }
+ 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.find(:first)
+ z = i.zine
+ m = 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.find(:first)
+ i.build_zine(:title => 'Get Some in Winter! 2008')
+ i.build_man(:name => 'Gordon')
+ i.save!
+ end
+ end
+end