require "cases/helper"
require "models/developer"
require "models/computer"
require "models/project"
require "models/company"
require "models/contract"
require "models/topic"
require "models/reply"
require "models/category"
require "models/image"
require "models/post"
require "models/author"
require "models/essay"
require "models/comment"
require "models/person"
require "models/reader"
require "models/tagging"
require "models/tag"
require "models/invoice"
require "models/line_item"
require "models/car"
require "models/bulb"
require "models/engine"
require "models/categorization"
require "models/minivan"
require "models/speedometer"
require "models/reference"
require "models/job"
require "models/college"
require "models/student"
require "models/pirate"
require "models/ship"
require "models/ship_part"
require "models/treasure"
require "models/parrot"
require "models/tyre"
require "models/subscriber"
require "models/subscription"
require "models/zine"
require "models/interest"
class HasManyAssociationsTestForReorderWithJoinDependency < ActiveRecord::TestCase
fixtures :authors, :author_addresses, :posts, :comments
def test_should_generate_valid_sql
author = authors(:david)
# this can fail on adapters which require ORDER BY expressions to be included in the SELECT expression
# if the reorder clauses are not correctly handled
assert author.posts_with_comments_sorted_by_comment_id.where("comments.id > 0").reorder("posts.comments_count DESC", "posts.tags_count DESC").last
end
end
class HasManyAssociationsTestPrimaryKeys < ActiveRecord::TestCase
fixtures :authors, :author_addresses, :essays, :subscribers, :subscriptions, :people
def test_custom_primary_key_on_new_record_should_fetch_with_query
subscriber = Subscriber.new(nick: "webster132")
assert !subscriber.subscriptions.loaded?
assert_queries 1 do
assert_equal 2, subscriber.subscriptions.size
end
assert_equal subscriber.subscriptions, Subscription.where(subscriber_id: "webster132")
end
def test_association_primary_key_on_new_record_should_fetch_with_query
author = Author.new(name: "David")
assert !author.essays.loaded?
assert_queries 1 do
assert_equal 1, author.essays.size
end
assert_equal author.essays, Essay.where(writer_id: "David")
end
def test_has_many_custom_primary_key
david = authors(:david)
assert_equal david.essays, Essay.where(writer_id: "David")
end
def test_has_many_assignment_with_custom_primary_key
david = people(:david)
assert_equal ["A Modest Proposal"], david.essays.map(&:name)
david.essays = [Essay.create!(name: "Remote Work")]
assert_equal ["Remote Work"], david.essays.map(&:name)
end
def test_blank_custom_primary_key_on_new_record_should_not_run_queries
author = Author.new
assert !author.essays.loaded?
assert_queries 0 do
assert_equal 0, author.essays.size
end
end
end
class HasManyAssociationsTest < ActiveRecord::TestCase
fixtures :accounts, :categories, :companies, :developers, :projects,
:developers_projects, :topics, :authors, :author_addresses, :comments,
:posts, :readers, :taggings, :cars, :jobs, :tags,
:categorizations, :zines, :interests
def setup
Client.destroyed_client_ids.clear
end
def test_sti_subselect_count
tag = Tag.first
len = Post.tagged_with(tag.id).limit(10).size
assert_operator len, :>, 0
end
def test_anonymous_has_many
developer = Class.new(ActiveRecord::Base) {
self.table_name = "developers"
dev = self
developer_project = Class.new(ActiveRecord::Base) {
self.table_name = "developers_projects"
belongs_to :developer, anonymous_class: dev
}
has_many :developer_projects, anonymous_class: developer_project, foreign_key: "developer_id"
}
dev = developer.first
named = Developer.find(dev.id)
assert_operator dev.developer_projects.count, :>, 0
assert_equal named.projects.map(&:id).sort,
dev.developer_projects.map(&:project_id).sort
end
def test_default_scope_on_relations_is_not_cached
counter = 0
posts = Class.new(ActiveRecord::Base) {
self.table_name = "posts"
self.inheritance_column = "not_there"
post = self
comments = Class.new(ActiveRecord::Base) {
self.table_name = "comments"
self.inheritance_column = "not_there"
belongs_to :post, anonymous_class: post
default_scope -> {
counter += 1
where("id = :inc", inc: counter)
}
}
has_many :comments, anonymous_class: comments, foreign_key: "post_id"
}
assert_equal 0, counter
post = posts.first
assert_equal 0, counter
sql = capture_sql { post.comments.to_a }
post.comments.reset
assert_not_equal sql, capture_sql { post.comments.to_a }
end
def test_has_many_build_with_options
college = College.create(name: "UFMT")
Student.create(active: true, college_id: college.id, name: "Sarah")
assert_equal college.students, Student.where(active: true, college_id: college.id)
end
def test_add_record_to_collection_should_change_its_updated_at
ship = Ship.create(name: "dauntless")
part = ShipPart.create(name: "cockpit")
updated_at = part.updated_at
travel(1.second) do
ship.parts << part
end
assert_equal part.ship, ship
assert_not_equal part.updated_at, updated_at
end
def test_clear_collection_should_not_change_updated_at
# GH#17161: .clear calls delete_all (and returns the association),
# which is intended to not touch associated objects's updated_at field
ship = Ship.create(name: "dauntless")
part = ShipPart.create(name: "cockpit", ship_id: ship.id)
ship.parts.clear
part.reload
assert_nil part.ship
assert !part.updated_at_changed?
end
def test_create_from_association_should_respect_default_scope
car = Car.create(name: "honda")
assert_equal "honda", car.name
bulb = Bulb.create
assert_equal "defaulty", bulb.name
bulb = car.bulbs.build
assert_equal "defaulty", bulb.name
bulb = car.bulbs.create
assert_equal "defaulty", bulb.name
end
def test_build_and_create_from_association_should_respect_passed_attributes_over_default_scope
car = Car.create(name: "honda")
bulb = car.bulbs.build(name: "exotic")
assert_equal "exotic", bulb.name
bulb = car.bulbs.create(name: "exotic")
assert_equal "exotic", bulb.name
bulb = car.awesome_bulbs.build(frickinawesome: false)
assert_equal false, bulb.frickinawesome
bulb = car.awesome_bulbs.create(frickinawesome: false)
assert_equal false, bulb.frickinawesome
end
def test_build_from_association_should_respect_scope
author = Author.new
post = author.thinking_posts.build
assert_equal "So I was thinking", post.title
end
def test_create_from_association_with_nil_values_should_work
car = Car.create(name: "honda")
bulb = car.bulbs.new(nil)
assert_equal "defaulty", bulb.name
bulb = car.bulbs.build(nil)
assert_equal "defaulty", bulb.name
bulb = car.bulbs.create(nil)
assert_equal "defaulty", bulb.name
end
def test_do_not_call_callbacks_for_delete_all
car = Car.create(name: "honda")
car.funky_bulbs.create!
assert_equal 1, car.funky_bulbs.count
assert_nothing_raised { car.reload.funky_bulbs.delete_all }
assert_equal 0, car.funky_bulbs.count, "bulbs should have been deleted using :delete_all strategy"
end
def test_delete_all_on_association_is_the_same_as_not_loaded
author = authors :david
author.thinking_posts.create!(body: "test")
author.reload
expected_sql = capture_sql { author.thinking_posts.delete_all }
author.thinking_posts.create!(body: "test")
author.reload
author.thinking_posts.inspect
loaded_sql = capture_sql { author.thinking_posts.delete_all }
assert_equal(expected_sql, loaded_sql)
end
def test_delete_all_on_association_with_nil_dependency_is_the_same_as_not_loaded
author = authors :david
author.posts.create!(title: "test", body: "body")
author.reload
expected_sql = capture_sql { author.posts.delete_all }
author.posts.create!(title: "test", body: "body")
author.reload
author.posts.to_a
loaded_sql = capture_sql { author.posts.delete_all }
assert_equal(expected_sql, loaded_sql)
end
def test_building_the_associated_object_with_implicit_sti_base_class
firm = DependentFirm.new
company = firm.companies.build
assert_kind_of Company, company, "Expected #{company.class} to be a Company"
end
def test_building_the_associated_object_with_explicit_sti_base_class
firm = DependentFirm.new
company = firm.companies.build(type: "Company")
assert_kind_of Company, company, "Expected #{company.class} to be a Company"
end
def test_building_the_associated_object_with_sti_subclass
firm = DependentFirm.new
company = firm.companies.build(type: "Client")
assert_kind_of Client, company, "Expected #{company.class} to be a Client"
end
def test_building_the_associated_object_with_an_invalid_type
firm = DependentFirm.new
assert_raise(ActiveRecord::SubclassNotFound) { firm.companies.build(type: "Invalid") }
end
def test_building_the_associated_object_with_an_unrelated_type
firm = DependentFirm.new
assert_raise(ActiveRecord::SubclassNotFound) { firm.companies.build(type: "Account") }
end
test "building the association with an array" do
speedometer = Speedometer.new(speedometer_id: "a")
data = [{ name: "first" }, { name: "second" }]
speedometer.minivans.build(data)
assert_equal 2, speedometer.minivans.size
assert speedometer.save
assert_equal ["first", "second"], speedometer.reload.minivans.map(&:name)
end
def test_association_keys_bypass_attribute_protection
car = Car.create(name: "honda")
bulb = car.bulbs.new
assert_equal car.id, bulb.car_id
bulb = car.bulbs.new car_id: car.id + 1
assert_equal car.id, bulb.car_id
bulb = car.bulbs.build
assert_equal car.id, bulb.car_id
bulb = car.bulbs.build car_id: car.id + 1
assert_equal car.id, bulb.car_id
bulb = car.bulbs.create
assert_equal car.id, bulb.car_id
bulb = car.bulbs.create car_id: car.id + 1
assert_equal car.id, bulb.car_id
end
def test_association_protect_foreign_key
invoice = Invoice.create
line_item = invoice.line_items.new
assert_equal invoice.id, line_item.invoice_id
line_item = invoice.line_items.new invoice_id: invoice.id + 1
assert_equal invoice.id, line_item.invoice_id
line_item = invoice.line_items.build
assert_equal invoice.id, line_item.invoice_id
line_item = invoice.line_items.build invoice_id: invoice.id + 1
assert_equal invoice.id, line_item.invoice_id
line_item = invoice.line_items.create
assert_equal invoice.id, line_item.invoice_id
line_item = invoice.line_items.create invoice_id: invoice.id + 1
assert_equal invoice.id, line_item.invoice_id
end
# When creating objects on the association, we must not do it within a scope (even though it
# would be convenient), because this would cause that scope to be applied to any callbacks etc.
def test_build_and_create_should_not_happen_within_scope
car = cars(:honda)
scope = car.foo_bulbs.where_values_hash
bulb = car.foo_bulbs.build
assert_not_equal scope, bulb.scope_after_initialize.where_values_hash
bulb = car.foo_bulbs.create
assert_not_equal scope, bulb.scope_after_initialize.where_values_hash
bulb = car.foo_bulbs.create!
assert_not_equal scope, bulb.scope_after_initialize.where_values_hash
end
def test_no_sql_should_be_fired_if_association_already_loaded
Car.create(name: "honda")
bulbs = Car.first.bulbs
bulbs.to_a # to load all instances of bulbs
assert_no_queries do
bulbs.first()
end
assert_no_queries do
bulbs.second()
end
assert_no_queries do
bulbs.third()
end
assert_no_queries do
bulbs.fourth()
end
assert_no_queries do
bulbs.fifth()
end
assert_no_queries do
bulbs.forty_two()
end
assert_no_queries do
bulbs.third_to_last()
end
assert_no_queries do
bulbs.second_to_last()
end
assert_no_queries do
bulbs.last()
end
end
def test_finder_method_with_dirty_target
company = companies(:first_firm)
new_clients = []
assert_no_queries(ignore_none: false) do
new_clients << company.clients_of_firm.build(name: "Another Client")
new_clients << company.clients_of_firm.build(name: "Another Client II")
new_clients << company.clients_of_firm.build(name: "Another Client III")
end
assert_not company.clients_of_firm.loaded?
assert_queries(1) do
assert_same new_clients[0], company.clients_of_firm.third
assert_same new_clients[1], company.clients_of_firm.fourth
assert_same new_clients[2], company.clients_of_firm.fifth
assert_same new_clients[0], company.clients_of_firm.third_to_last
assert_same new_clients[1], company.clients_of_firm.second_to_last
assert_same new_clients[2], company.clients_of_firm.last
end
end
def test_finder_bang_method_with_dirty_target
company = companies(:first_firm)
new_clients = []
assert_no_queries(ignore_none: false) do
new_clients << company.clients_of_firm.build(name: "Another Client")
new_clients << company.clients_of_firm.build(name: "Another Client II")
new_clients << company.clients_of_firm.build(name: "Another Client III")
end
assert_not company.clients_of_firm.loaded?
assert_queries(1) do
assert_same new_clients[0], company.clients_of_firm.third!
assert_same new_clients[1], company.clients_of_firm.fourth!
assert_same new_clients[2], company.clients_of_firm.fifth!
assert_same new_clients[0], company.clients_of_firm.third_to_last!
assert_same new_clients[1], company.clients_of_firm.second_to_last!
assert_same new_clients[2], company.clients_of_firm.last!
end
end
def test_create_resets_cached_counters
person = Person.create!(first_name: "tenderlove")
post = Post.first
assert_equal [], person.readers
assert_nil person.readers.find_by_post_id(post.id)
person.readers.create(post_id: post.id)
assert_equal 1, person.readers.count
assert_equal 1, person.readers.length
assert_equal post, person.readers.first.post
assert_equal person, person.readers.first.person
end
def test_update_all_respects_association_scope
person = Person.new
person.first_name = "Naruto"
person.references << Reference.new
person.id = 10
person.references
person.save!
assert_equal 1, person.references.update_all(favourite: true)
end
def test_exists_respects_association_scope
person = Person.new
person.first_name = "Sasuke"
person.references << Reference.new
person.id = 10
person.references
person.save!
assert_predicate person.references, :exists?
end
# sometimes tests on Oracle fail if ORDER BY is not provided therefore add always :order with :first
def test_counting_with_counter_sql
assert_equal 3, Firm.all.merge!(order: "id").first.clients.count
end
def test_counting
assert_equal 3, Firm.all.merge!(order: "id").first.plain_clients.count
end
def test_counting_with_single_hash
assert_equal 1, Firm.all.merge!(order: "id").first.plain_clients.where(name: "Microsoft").count
end
def test_counting_with_column_name_and_hash
assert_equal 3, Firm.all.merge!(order: "id").first.plain_clients.count(:name)
end
def test_counting_with_association_limit
firm = companies(:first_firm)
assert_equal firm.limited_clients.length, firm.limited_clients.size
assert_equal firm.limited_clients.length, firm.limited_clients.count
end
def test_finding
assert_equal 3, Firm.all.merge!(order: "id").first.clients.length
end
def test_finding_array_compatibility
assert_equal 3, Firm.order(:id).find { |f| f.id > 0 }.clients.length
end
def test_find_many_with_merged_options
assert_equal 1, companies(:first_firm).limited_clients.size
assert_equal 1, companies(:first_firm).limited_clients.to_a.size
assert_equal 3, companies(:first_firm).limited_clients.limit(nil).to_a.size
end
def test_find_should_append_to_association_order
ordered_clients = companies(:first_firm).clients_sorted_desc.order("companies.id")
assert_equal ["id DESC", "companies.id"], ordered_clients.order_values
end
def test_dynamic_find_should_respect_association_order
assert_equal companies(:another_first_firm_client), companies(:first_firm).clients_sorted_desc.where("type = 'Client'").first
assert_equal companies(:another_first_firm_client), companies(:first_firm).clients_sorted_desc.find_by_type("Client")
end
def test_taking
posts(:other_by_bob).destroy
assert_equal posts(:misc_by_bob), authors(:bob).posts.take
assert_equal posts(:misc_by_bob), authors(:bob).posts.take!
authors(:bob).posts.to_a
assert_equal posts(:misc_by_bob), authors(:bob).posts.take
assert_equal posts(:misc_by_bob), authors(:bob).posts.take!
end
def test_taking_not_found
authors(:bob).posts.delete_all
assert_raise(ActiveRecord::RecordNotFound) { authors(:bob).posts.take! }
authors(:bob).posts.to_a
assert_raise(ActiveRecord::RecordNotFound) { authors(:bob).posts.take! }
end
def test_taking_with_a_number
# taking from unloaded Relation
bob = Author.find(authors(:bob).id)
new_post = bob.posts.build
assert_not bob.posts.loaded?
assert_equal [posts(:misc_by_bob)], bob.posts.take(1)
assert_equal [posts(:misc_by_bob), posts(:other_by_bob)], bob.posts.take(2)
assert_equal [posts(:misc_by_bob), posts(:other_by_bob), new_post], bob.posts.take(3)
# taking from loaded Relation
bob.posts.load
assert bob.posts.loaded?
assert_equal [posts(:misc_by_bob)], bob.posts.take(1)
assert_equal [posts(:misc_by_bob), posts(:other_by_bob)], bob.posts.take(2)
assert_equal [posts(:misc_by_bob), posts(:other_by_bob), new_post], bob.posts.take(3)
end
def test_taking_with_inverse_of
interests(:woodsmanship).destroy
interests(:survival).destroy
zine = zines(:going_out)
interest = zine.interests.take
assert_equal interests(:hunting), interest
assert_same zine, interest.zine
end
def test_cant_save_has_many_readonly_association
authors(:david).readonly_comments.each { |c| assert_raise(ActiveRecord::ReadOnlyRecord) { c.save! } }
authors(:david).readonly_comments.each { |c| assert c.readonly? }
end
def test_finding_default_orders
assert_equal "Summit", Firm.all.merge!(order: "id").first.clients.first.name
end
def test_finding_with_different_class_name_and_order
assert_equal "Apex", Firm.all.merge!(order: "id").first.clients_sorted_desc.first.name
end
def test_finding_with_foreign_key
assert_equal "Microsoft", Firm.all.merge!(order: "id").first.clients_of_firm.first.name
end
def test_finding_with_condition
assert_equal "Microsoft", Firm.all.merge!(order: "id").first.clients_like_ms.first.name
end
def test_finding_with_condition_hash
assert_equal "Microsoft", Firm.all.merge!(order: "id").first.clients_like_ms_with_hash_conditions.first.name
end
def test_finding_using_primary_key
assert_equal "Summit", Firm.all.merge!(order: "id").first.clients_using_primary_key.first.name
end
def test_update_all_on_association_accessed_before_save
firm = Firm.new(name: "Firm")
firm.clients << Client.first
firm.save!
assert_equal firm.clients.count, firm.clients.update_all(description: "Great!")
end
def test_update_all_on_association_accessed_before_save_with_explicit_foreign_key
firm = Firm.new(name: "Firm", id: 100)
firm.clients << Client.first
firm.save!
assert_equal firm.clients.count, firm.clients.update_all(description: "Great!")
end
def test_belongs_to_sanity
c = Client.new
assert_nil c.firm, "belongs_to failed sanity check on new object"
end
def test_find_ids
firm = Firm.all.merge!(order: "id").first
assert_raise(ActiveRecord::RecordNotFound) { firm.clients.find }
client = firm.clients.find(2)
assert_kind_of Client, client
client_ary = firm.clients.find([2])
assert_kind_of Array, client_ary
assert_equal client, client_ary.first
client_ary = firm.clients.find(2, 3)
assert_kind_of Array, client_ary
assert_equal 2, client_ary.size
assert_equal client, client_ary.first
assert_raise(ActiveRecord::RecordNotFound) { firm.clients.find(2, 99) }
end
def test_find_one_message_on_primary_key
firm = Firm.all.merge!(order: "id").first
e = assert_raises(ActiveRecord::RecordNotFound) do
firm.clients.find(0)
end
assert_equal 0, e.id
assert_equal "id", e.primary_key
assert_equal "Client", e.model
assert_match (/\ACouldn't find Client with 'id'=0/), e.message
end
def test_find_ids_and_inverse_of
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
firm = companies(:first_firm)
client = firm.clients_of_firm.find(3)
assert_kind_of Client, client
client_ary = firm.clients_of_firm.find([3])
assert_kind_of Array, client_ary
assert_equal client, client_ary.first
end
def test_find_all
firm = Firm.all.merge!(order: "id").first
assert_equal 3, firm.clients.where("#{QUOTED_TYPE} = 'Client'").to_a.length
assert_equal 1, firm.clients.where("name = 'Summit'").to_a.length
end
def test_find_each
firm = companies(:first_firm)
assert ! firm.clients.loaded?
assert_queries(4) do
firm.clients.find_each(batch_size: 1) { |c| assert_equal firm.id, c.firm_id }
end
assert ! firm.clients.loaded?
end
def test_find_each_with_conditions
firm = companies(:first_firm)
assert_queries(2) do
firm.clients.where(name: "Microsoft").find_each(batch_size: 1) do |c|
assert_equal firm.id, c.firm_id
assert_equal "Microsoft", c.name
end
end
assert ! firm.clients.loaded?
end
def test_find_in_batches
firm = companies(:first_firm)
assert ! firm.clients.loaded?
assert_queries(2) do
firm.clients.find_in_batches(batch_size: 2) do |clients|
clients.each { |c| assert_equal firm.id, c.firm_id }
end
end
assert ! firm.clients.loaded?
end
def test_find_all_sanitized
# sometimes tests on Oracle fail if ORDER BY is not provided therefore add always :order with :first
firm = Firm.all.merge!(order: "id").first
summit = firm.clients.where("name = 'Summit'").to_a
assert_equal summit, firm.clients.where("name = ?", "Summit").to_a
assert_equal summit, firm.clients.where("name = :name", name: "Summit").to_a
end
def test_find_first
firm = Firm.all.merge!(order: "id").first
client2 = Client.find(2)
assert_equal firm.clients.first, firm.clients.order("id").first
assert_equal client2, firm.clients.where("#{QUOTED_TYPE} = 'Client'").order("id").first
end
def test_find_first_sanitized
firm = Firm.all.merge!(order: "id").first
client2 = Client.find(2)
assert_equal client2, firm.clients.merge!(where: ["#{QUOTED_TYPE} = ?", "Client"], order: "id").first
assert_equal client2, firm.clients.merge!(where: ["#{QUOTED_TYPE} = :type", { type: "Client" }], order: "id").first
end
def test_find_first_after_reset_scope
firm = Firm.all.merge!(order: "id").first
collection = firm.clients
original_object = collection.first
assert_same original_object, collection.first, "Expected second call to #first to cache the same object"
# It should return a different object, since the association has been reloaded
assert_not_same original_object, firm.clients.first, "Expected #first to return a new object"
end
def test_find_first_after_reset
firm = Firm.all.merge!(order: "id").first
collection = firm.clients
original_object = collection.first
assert_same original_object, collection.first, "Expected second call to #first to cache the same object"
collection.reset
# It should return a different object, since the association has been reloaded
assert_not_same original_object, collection.first, "Expected #first after #reset to return a new object"
end
def test_find_first_after_reload
firm = Firm.all.merge!(order: "id").first
collection = firm.clients
original_object = collection.first
assert_same original_object, collection.first, "Expected second call to #first to cache the same object"
collection.reload
# It should return a different object, since the association has been reloaded
assert_not_same original_object, collection.first, "Expected #first after #reload to return a new object"
end
def test_find_all_with_include_and_conditions
assert_nothing_raised do
Developer.all.merge!(joins: :audit_logs, where: { "audit_logs.message" => nil, :name => "Smith" }).to_a
end
end
def test_find_in_collection
assert_equal Client.find(2).name, companies(:first_firm).clients.find(2).name
assert_raise(ActiveRecord::RecordNotFound) { companies(:first_firm).clients.find(6) }
end
def test_find_grouped
all_clients_of_firm1 = Client.all.merge!(where: "firm_id = 1").to_a
grouped_clients_of_firm1 = Client.all.merge!(where: "firm_id = 1", group: "firm_id", select: "firm_id, count(id) as clients_count").to_a
assert_equal 3, all_clients_of_firm1.size
assert_equal 1, grouped_clients_of_firm1.size
end
def test_find_scoped_grouped
assert_equal 1, companies(:first_firm).clients_grouped_by_firm_id.size
assert_equal 1, companies(:first_firm).clients_grouped_by_firm_id.length
assert_equal 3, companies(:first_firm).clients_grouped_by_name.size
assert_equal 3, companies(:first_firm).clients_grouped_by_name.length
end
def test_find_scoped_grouped_having
assert_equal 1, authors(:david).popular_grouped_posts.length
assert_equal 0, authors(:mary).popular_grouped_posts.length
end
def test_default_select
assert_equal Comment.column_names.sort, posts(:welcome).comments.first.attributes.keys.sort
end
def test_select_query_method
assert_equal ["id", "body"], posts(:welcome).comments.select(:id, :body).first.attributes.keys
end
def test_select_with_block
assert_equal [1], posts(:welcome).comments.select { |c| c.id == 1 }.map(&:id)
end
def test_select_with_block_and_dirty_target
assert_equal 2, posts(:welcome).comments.select { true }.size
posts(:welcome).comments.build
assert_equal 3, posts(:welcome).comments.select { true }.size
end
def test_select_without_foreign_key
assert_equal companies(:first_firm).accounts.first.credit_limit, companies(:first_firm).accounts.select(:credit_limit).first.credit_limit
end
def test_adding
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
natural = Client.new("name" => "Natural Company")
companies(:first_firm).clients_of_firm << natural
assert_equal 3, companies(:first_firm).clients_of_firm.size # checking via the collection
assert_equal 3, companies(:first_firm).clients_of_firm.reload.size # checking using the db
assert_equal natural, companies(:first_firm).clients_of_firm.last
end
def test_adding_using_create
first_firm = companies(:first_firm)
assert_equal 3, first_firm.plain_clients.size
first_firm.plain_clients.create(name: "Natural Company")
assert_equal 4, first_firm.plain_clients.length
assert_equal 4, first_firm.plain_clients.size
end
def test_create_with_bang_on_has_many_when_parent_is_new_raises
error = assert_raise(ActiveRecord::RecordNotSaved) do
firm = Firm.new
firm.plain_clients.create! name: "Whoever"
end
assert_equal "You cannot call create unless the parent is saved", error.message
end
def test_regular_create_on_has_many_when_parent_is_new_raises
error = assert_raise(ActiveRecord::RecordNotSaved) do
firm = Firm.new
firm.plain_clients.create name: "Whoever"
end
assert_equal "You cannot call create unless the parent is saved", error.message
end
def test_create_with_bang_on_has_many_raises_when_record_not_saved
assert_raise(ActiveRecord::RecordInvalid) do
firm = Firm.all.merge!(order: "id").first
firm.plain_clients.create!
end
end
def test_create_with_bang_on_habtm_when_parent_is_new_raises
error = assert_raise(ActiveRecord::RecordNotSaved) do
Developer.new("name" => "Aredridel").projects.create!
end
assert_equal "You cannot call create unless the parent is saved", error.message
end
def test_adding_a_mismatch_class
assert_raise(ActiveRecord::AssociationTypeMismatch) { companies(:first_firm).clients_of_firm << nil }
assert_raise(ActiveRecord::AssociationTypeMismatch) { companies(:first_firm).clients_of_firm << 1 }
assert_raise(ActiveRecord::AssociationTypeMismatch) { companies(:first_firm).clients_of_firm << Topic.find(1) }
end
def test_adding_a_collection
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).clients_of_firm.concat([Client.new("name" => "Natural Company"), Client.new("name" => "Apple")])
assert_equal 4, companies(:first_firm).clients_of_firm.size
assert_equal 4, companies(:first_firm).clients_of_firm.reload.size
end
def test_transactions_when_adding_to_persisted
good = Client.new(name: "Good")
bad = Client.new(name: "Bad", raise_on_save: true)
begin
companies(:first_firm).clients_of_firm.concat(good, bad)
rescue Client::RaisedOnSave
end
assert_not_includes companies(:first_firm).clients_of_firm.reload, good
end
def test_transactions_when_adding_to_new_record
assert_no_queries(ignore_none: false) do
firm = Firm.new
firm.clients_of_firm.concat(Client.new("name" => "Natural Company"))
end
end
def test_inverse_on_before_validate
firm = companies(:first_firm)
assert_queries(1) do
firm.clients_of_firm << Client.new("name" => "Natural Company")
end
end
def test_new_aliased_to_build
company = companies(:first_firm)
new_client = assert_no_queries(ignore_none: false) { company.clients_of_firm.new("name" => "Another Client") }
assert !company.clients_of_firm.loaded?
assert_equal "Another Client", new_client.name
assert !new_client.persisted?
assert_equal new_client, company.clients_of_firm.last
end
def test_build
company = companies(:first_firm)
new_client = assert_no_queries(ignore_none: false) { company.clients_of_firm.build("name" => "Another Client") }
assert !company.clients_of_firm.loaded?
assert_equal "Another Client", new_client.name
assert !new_client.persisted?
assert_equal new_client, company.clients_of_firm.last
end
def test_collection_size_after_building
company = companies(:first_firm) # company already has one client
company.clients_of_firm.build("name" => "Another Client")
company.clients_of_firm.build("name" => "Yet Another Client")
assert_equal 4, company.clients_of_firm.size
assert_equal 4, company.clients_of_firm.uniq.size
end
def test_collection_not_empty_after_building
company = companies(:first_firm)
assert_predicate company.contracts, :empty?
company.contracts.build
assert_not_predicate company.contracts, :empty?
end
def test_collection_size_twice_for_regressions
post = posts(:thinking)
assert_equal 0, post.readers.size
# This test needs a post that has no readers, we assert it to ensure it holds,
# but need to reload the post because the very call to #size hides the bug.
post.reload
post.readers.build
size1 = post.readers.size
size2 = post.readers.size
assert_equal size1, size2
end
def test_build_many
company = companies(:first_firm)
new_clients = assert_no_queries(ignore_none: false) { company.clients_of_firm.build([{ "name" => "Another Client" }, { "name" => "Another Client II" }]) }
assert_equal 2, new_clients.size
end
def test_build_followed_by_save_does_not_load_target
companies(:first_firm).clients_of_firm.build("name" => "Another Client")
assert companies(:first_firm).save
assert !companies(:first_firm).clients_of_firm.loaded?
end
def test_build_without_loading_association
first_topic = topics(:first)
Reply.column_names
assert_equal 1, first_topic.replies.length
assert_no_queries do
first_topic.replies.build(title: "Not saved", content: "Superstars")
assert_equal 2, first_topic.replies.size
end
assert_equal 2, first_topic.replies.to_ary.size
end
def test_build_via_block
company = companies(:first_firm)
new_client = assert_no_queries(ignore_none: false) { company.clients_of_firm.build { |client| client.name = "Another Client" } }
assert !company.clients_of_firm.loaded?
assert_equal "Another Client", new_client.name
assert !new_client.persisted?
assert_equal new_client, company.clients_of_firm.last
end
def test_build_many_via_block
company = companies(:first_firm)
new_clients = assert_no_queries(ignore_none: false) do
company.clients_of_firm.build([{ "name" => "Another Client" }, { "name" => "Another Client II" }]) do |client|
client.name = "changed"
end
end
assert_equal 2, new_clients.size
assert_equal "changed", new_clients.first.name
assert_equal "changed", new_clients.last.name
end
def test_create_without_loading_association
first_firm = companies(:first_firm)
Firm.column_names
Client.column_names
assert_equal 2, first_firm.clients_of_firm.size
first_firm.clients_of_firm.reset
assert_queries(1) do
first_firm.clients_of_firm.create(name: "Superstars")
end
assert_equal 3, first_firm.clients_of_firm.size
end
def test_create
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
new_client = companies(:first_firm).clients_of_firm.create("name" => "Another Client")
assert new_client.persisted?
assert_equal new_client, companies(:first_firm).clients_of_firm.last
assert_equal new_client, companies(:first_firm).clients_of_firm.reload.last
end
def test_create_many
companies(:first_firm).clients_of_firm.create([{ "name" => "Another Client" }, { "name" => "Another Client II" }])
assert_equal 4, companies(:first_firm).clients_of_firm.reload.size
end
def test_create_followed_by_save_does_not_load_target
companies(:first_firm).clients_of_firm.create("name" => "Another Client")
assert companies(:first_firm).save
assert !companies(:first_firm).clients_of_firm.loaded?
end
def test_deleting
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).clients_of_firm.delete(companies(:first_firm).clients_of_firm.first)
assert_equal 1, companies(:first_firm).clients_of_firm.size
assert_equal 1, companies(:first_firm).clients_of_firm.reload.size
end
def test_deleting_before_save
new_firm = Firm.new("name" => "A New Firm, Inc.")
new_client = new_firm.clients_of_firm.build("name" => "Another Client")
assert_equal 1, new_firm.clients_of_firm.size
new_firm.clients_of_firm.delete(new_client)
assert_equal 0, new_firm.clients_of_firm.size
end
def test_has_many_without_counter_cache_option
# Ship has a conventionally named `treasures_count` column, but the counter_cache
# option is not given on the association.
ship = Ship.create(name: "Countless", treasures_count: 10)
assert_not Ship.reflect_on_association(:treasures).has_cached_counter?
# Count should come from sql count() of treasures rather than treasures_count attribute
assert_equal ship.treasures.size, 0
assert_no_difference lambda { ship.reload.treasures_count }, "treasures_count should not be changed" do
ship.treasures.create(name: "Gold")
end
assert_no_difference lambda { ship.reload.treasures_count }, "treasures_count should not be changed" do
ship.treasures.destroy_all
end
end
def test_deleting_updates_counter_cache
topic = Topic.order("id ASC").first
assert_equal topic.replies.to_a.size, topic.replies_count
topic.replies.delete(topic.replies.first)
topic.reload
assert_equal topic.replies.to_a.size, topic.replies_count
end
def test_counter_cache_updates_in_memory_after_concat
topic = Topic.create title: "Zoom-zoom-zoom"
topic.replies << Reply.create(title: "re: zoom", content: "speedy quick!")
assert_equal 1, topic.replies_count
assert_equal 1, topic.replies.size
assert_equal 1, topic.reload.replies.size
end
def test_counter_cache_updates_in_memory_after_create
topic = Topic.create title: "Zoom-zoom-zoom"
topic.replies.create!(title: "re: zoom", content: "speedy quick!")
assert_equal 1, topic.replies_count
assert_equal 1, topic.replies.size
assert_equal 1, topic.reload.replies.size
end
def test_counter_cache_updates_in_memory_after_create_with_array
topic = Topic.create title: "Zoom-zoom-zoom"
topic.replies.create!([
{ title: "re: zoom", content: "speedy quick!" },
{ title: "re: zoom 2", content: "OMG lol!" },
])
assert_equal 2, topic.replies_count
assert_equal 2, topic.replies.size
assert_equal 2, topic.reload.replies.size
end
def test_pushing_association_updates_counter_cache
topic = Topic.order("id ASC").first
reply = Reply.create!
assert_difference "topic.reload.replies_count", 1 do
topic.replies << reply
end
end
def test_deleting_updates_counter_cache_without_dependent_option
post = posts(:welcome)
assert_difference "post.reload.tags_count", -1 do
post.taggings.delete(post.taggings.first)
end
end
def test_deleting_updates_counter_cache_with_dependent_delete_all
post = posts(:welcome)
post.update_columns(taggings_with_delete_all_count: post.tags_count)
assert_difference "post.reload.taggings_with_delete_all_count", -1 do
post.taggings_with_delete_all.delete(post.taggings_with_delete_all.first)
end
end
def test_deleting_updates_counter_cache_with_dependent_destroy
post = posts(:welcome)
post.update_columns(taggings_with_destroy_count: post.tags_count)
assert_difference "post.reload.taggings_with_destroy_count", -1 do
post.taggings_with_destroy.delete(post.taggings_with_destroy.first)
end
end
def test_calling_empty_with_counter_cache
post = posts(:welcome)
assert_queries(0) do
assert_not post.comments.empty?
end
end
def test_custom_named_counter_cache
topic = topics(:first)
assert_difference "topic.reload.replies_count", -1 do
topic.approved_replies.clear
end
end
def test_calling_update_attributes_on_id_changes_the_counter_cache
topic = Topic.order("id ASC").first
original_count = topic.replies.to_a.size
assert_equal original_count, topic.replies_count
first_reply = topic.replies.first
first_reply.update_attributes(parent_id: nil)
assert_equal original_count - 1, topic.reload.replies_count
first_reply.update_attributes(parent_id: topic.id)
assert_equal original_count, topic.reload.replies_count
end
def test_calling_update_attributes_changing_ids_doesnt_change_counter_cache
topic1 = Topic.find(1)
topic2 = Topic.find(3)
original_count1 = topic1.replies.to_a.size
original_count2 = topic2.replies.to_a.size
reply1 = topic1.replies.first
reply2 = topic2.replies.first
reply1.update_attributes(parent_id: topic2.id)
assert_equal original_count1 - 1, topic1.reload.replies_count
assert_equal original_count2 + 1, topic2.reload.replies_count
reply2.update_attributes(parent_id: topic1.id)
assert_equal original_count1, topic1.reload.replies_count
assert_equal original_count2, topic2.reload.replies_count
end
def test_deleting_a_collection
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).clients_of_firm.create("name" => "Another Client")
assert_equal 3, companies(:first_firm).clients_of_firm.size
companies(:first_firm).clients_of_firm.delete([companies(:first_firm).clients_of_firm[0], companies(:first_firm).clients_of_firm[1], companies(:first_firm).clients_of_firm[2]])
assert_equal 0, companies(:first_firm).clients_of_firm.size
assert_equal 0, companies(:first_firm).clients_of_firm.reload.size
end
def test_delete_all
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).dependent_clients_of_firm.create("name" => "Another Client")
clients = companies(:first_firm).dependent_clients_of_firm.to_a
assert_equal 3, clients.count
assert_difference "Client.count", -(clients.count) do
companies(:first_firm).dependent_clients_of_firm.delete_all
end
end
def test_delete_all_with_not_yet_loaded_association_collection
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).clients_of_firm.create("name" => "Another Client")
assert_equal 3, companies(:first_firm).clients_of_firm.size
companies(:first_firm).clients_of_firm.reset
companies(:first_firm).clients_of_firm.delete_all
assert_equal 0, companies(:first_firm).clients_of_firm.size
assert_equal 0, companies(:first_firm).clients_of_firm.reload.size
end
def test_transaction_when_deleting_persisted
good = Client.new(name: "Good")
bad = Client.new(name: "Bad", raise_on_destroy: true)
companies(:first_firm).clients_of_firm = [good, bad]
begin
companies(:first_firm).clients_of_firm.destroy(good, bad)
rescue Client::RaisedOnDestroy
end
assert_equal [good, bad], companies(:first_firm).clients_of_firm.reload
end
def test_transaction_when_deleting_new_record
assert_no_queries(ignore_none: false) do
firm = Firm.new
client = Client.new("name" => "New Client")
firm.clients_of_firm << client
firm.clients_of_firm.destroy(client)
end
end
def test_clearing_an_association_collection
firm = companies(:first_firm)
client_id = firm.clients_of_firm.first.id
assert_equal 2, firm.clients_of_firm.size
firm.clients_of_firm.clear
assert_equal 0, firm.clients_of_firm.size
assert_equal 0, firm.clients_of_firm.reload.size
assert_equal [], Client.destroyed_client_ids[firm.id]
# Should not be destroyed since the association is not dependent.
assert_nothing_raised do
assert_nil Client.find(client_id).firm
end
end
def test_clearing_updates_counter_cache
topic = Topic.first
assert_difference "topic.reload.replies_count", -1 do
topic.replies.clear
end
end
def test_clearing_updates_counter_cache_when_inverse_counter_cache_is_a_symbol_with_dependent_destroy
car = Car.first
car.engines.create!
assert_difference "car.reload.engines_count", -1 do
car.engines.clear
end
end
def test_clearing_a_dependent_association_collection
firm = companies(:first_firm)
client_id = firm.dependent_clients_of_firm.first.id
assert_equal 2, firm.dependent_clients_of_firm.size
assert_equal 1, Client.find_by_id(client_id).client_of
# :delete_all is called on each client since the dependent options is :destroy
firm.dependent_clients_of_firm.clear
assert_equal 0, firm.dependent_clients_of_firm.size
assert_equal 0, firm.dependent_clients_of_firm.reload.size
assert_equal [], Client.destroyed_client_ids[firm.id]
# Should be destroyed since the association is dependent.
assert_nil Client.find_by_id(client_id)
end
def test_delete_all_with_option_delete_all
firm = companies(:first_firm)
client_id = firm.dependent_clients_of_firm.first.id
firm.dependent_clients_of_firm.delete_all(:delete_all)
assert_nil Client.find_by_id(client_id)
end
def test_delete_all_accepts_limited_parameters
firm = companies(:first_firm)
assert_raise(ArgumentError) do
firm.dependent_clients_of_firm.delete_all(:destroy)
end
end
def test_clearing_an_exclusively_dependent_association_collection
firm = companies(:first_firm)
client_id = firm.exclusively_dependent_clients_of_firm.first.id
assert_equal 2, firm.exclusively_dependent_clients_of_firm.size
assert_equal [], Client.destroyed_client_ids[firm.id]
# :exclusively_dependent means each client is deleted directly from
# the database without looping through them calling destroy.
firm.exclusively_dependent_clients_of_firm.clear
assert_equal 0, firm.exclusively_dependent_clients_of_firm.size
assert_equal 0, firm.exclusively_dependent_clients_of_firm.reload.size
# no destroy-filters should have been called
assert_equal [], Client.destroyed_client_ids[firm.id]
# Should be destroyed since the association is exclusively dependent.
assert_nil Client.find_by_id(client_id)
end
def test_dependent_association_respects_optional_conditions_on_delete
firm = companies(:odegy)
Client.create(client_of: firm.id, name: "BigShot Inc.")
Client.create(client_of: firm.id, name: "SmallTime Inc.")
# only one of two clients is included in the association due to the :conditions key
assert_equal 2, Client.where(client_of: firm.id).size
assert_equal 1, firm.dependent_conditional_clients_of_firm.size
firm.destroy
# only the correctly associated client should have been deleted
assert_equal 1, Client.where(client_of: firm.id).size
end
def test_dependent_association_respects_optional_sanitized_conditions_on_delete
firm = companies(:odegy)
Client.create(client_of: firm.id, name: "BigShot Inc.")
Client.create(client_of: firm.id, name: "SmallTime Inc.")
# only one of two clients is included in the association due to the :conditions key
assert_equal 2, Client.where(client_of: firm.id).size
assert_equal 1, firm.dependent_sanitized_conditional_clients_of_firm.size
firm.destroy
# only the correctly associated client should have been deleted
assert_equal 1, Client.where(client_of: firm.id).size
end
def test_dependent_association_respects_optional_hash_conditions_on_delete
firm = companies(:odegy)
Client.create(client_of: firm.id, name: "BigShot Inc.")
Client.create(client_of: firm.id, name: "SmallTime Inc.")
# only one of two clients is included in the association due to the :conditions key
assert_equal 2, Client.where(client_of: firm.id).size
assert_equal 1, firm.dependent_hash_conditional_clients_of_firm.size
firm.destroy
# only the correctly associated client should have been deleted
assert_equal 1, Client.where(client_of: firm.id).size
end
def test_delete_all_association_with_primary_key_deletes_correct_records
firm = Firm.first
# break the vanilla firm_id foreign key
assert_equal 3, firm.clients.count
firm.clients.first.update_columns(firm_id: nil)
assert_equal 2, firm.clients.reload.count
assert_equal 2, firm.clients_using_primary_key_with_delete_all.count
old_record = firm.clients_using_primary_key_with_delete_all.first
firm = Firm.first
firm.destroy
assert_nil Client.find_by_id(old_record.id)
end
def test_creation_respects_hash_condition
ms_client = companies(:first_firm).clients_like_ms_with_hash_conditions.build
assert ms_client.save
assert_equal "Microsoft", ms_client.name
another_ms_client = companies(:first_firm).clients_like_ms_with_hash_conditions.create
assert another_ms_client.persisted?
assert_equal "Microsoft", another_ms_client.name
end
def test_clearing_without_initial_access
firm = companies(:first_firm)
firm.clients_of_firm.clear
assert_equal 0, firm.clients_of_firm.size
assert_equal 0, firm.clients_of_firm.reload.size
end
def test_deleting_a_item_which_is_not_in_the_collection
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
summit = Client.find_by_name("Summit")
companies(:first_firm).clients_of_firm.delete(summit)
assert_equal 2, companies(:first_firm).clients_of_firm.size
assert_equal 2, companies(:first_firm).clients_of_firm.reload.size
assert_equal 2, summit.client_of
end
def test_deleting_by_integer_id
david = Developer.find(1)
assert_difference "david.projects.count", -1 do
assert_equal 1, david.projects.delete(1).size
end
assert_equal 1, david.projects.size
end
def test_deleting_by_string_id
david = Developer.find(1)
assert_difference "david.projects.count", -1 do
assert_equal 1, david.projects.delete("1").size
end
assert_equal 1, david.projects.size
end
def test_deleting_self_type_mismatch
david = Developer.find(1)
david.projects.reload
assert_raise(ActiveRecord::AssociationTypeMismatch) { david.projects.delete(Project.find(1).developers) }
end
def test_destroying
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
assert_difference "Client.count", -1 do
companies(:first_firm).clients_of_firm.destroy(companies(:first_firm).clients_of_firm.first)
end
assert_equal 1, companies(:first_firm).reload.clients_of_firm.size
assert_equal 1, companies(:first_firm).clients_of_firm.reload.size
end
def test_destroying_by_integer_id
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
assert_difference "Client.count", -1 do
companies(:first_firm).clients_of_firm.destroy(companies(:first_firm).clients_of_firm.first.id)
end
assert_equal 1, companies(:first_firm).reload.clients_of_firm.size
assert_equal 1, companies(:first_firm).clients_of_firm.reload.size
end
def test_destroying_by_string_id
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
assert_difference "Client.count", -1 do
companies(:first_firm).clients_of_firm.destroy(companies(:first_firm).clients_of_firm.first.id.to_s)
end
assert_equal 1, companies(:first_firm).reload.clients_of_firm.size
assert_equal 1, companies(:first_firm).clients_of_firm.reload.size
end
def test_destroying_a_collection
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
companies(:first_firm).clients_of_firm.create("name" => "Another Client")
assert_equal 3, companies(:first_firm).clients_of_firm.size
assert_difference "Client.count", -2 do
companies(:first_firm).clients_of_firm.destroy([companies(:first_firm).clients_of_firm[0], companies(:first_firm).clients_of_firm[1]])
end
assert_equal 1, companies(:first_firm).reload.clients_of_firm.size
assert_equal 1, companies(:first_firm).clients_of_firm.reload.size
end
def test_destroy_all
force_signal37_to_load_all_clients_of_firm
assert_predicate companies(:first_firm).clients_of_firm, :loaded?
clients = companies(:first_firm).clients_of_firm.to_a
assert !clients.empty?, "37signals has clients after load"
destroyed = companies(:first_firm).clients_of_firm.destroy_all
assert_equal clients.sort_by(&:id), destroyed.sort_by(&:id)
assert destroyed.all?(&:frozen?), "destroyed clients should be frozen"
assert companies(:first_firm).clients_of_firm.empty?, "37signals has no clients after destroy all"
assert companies(:first_firm).clients_of_firm.reload.empty?, "37signals has no clients after destroy all and refresh"
end
def test_dependence
firm = companies(:first_firm)
assert_equal 3, firm.clients.size
firm.destroy
assert Client.all.merge!(where: "firm_id=#{firm.id}").to_a.empty?
end
def test_dependence_for_associations_with_hash_condition
david = authors(:david)
assert_difference("Post.count", -1) { assert david.destroy }
end
def test_destroy_dependent_when_deleted_from_association
# sometimes tests on Oracle fail if ORDER BY is not provided therefore add always :order with :first
firm = Firm.all.merge!(order: "id").first
assert_equal 3, firm.clients.size
client = firm.clients.first
firm.clients.delete(client)
assert_raise(ActiveRecord::RecordNotFound) { Client.find(client.id) }
assert_raise(ActiveRecord::RecordNotFound) { firm.clients.find(client.id) }
assert_equal 2, firm.clients.size
end
def test_three_levels_of_dependence
topic = Topic.create "title" => "neat and simple"
reply = topic.replies.create "title" => "neat and simple", "content" => "still digging it"
reply.replies.create "title" => "neat and simple", "content" => "ain't complaining"
assert_nothing_raised { topic.destroy }
end
def test_dependence_with_transaction_support_on_failure
firm = companies(:first_firm)
clients = firm.clients
assert_equal 3, clients.length
clients.last.instance_eval { def overwrite_to_raise() raise "Trigger rollback" end }
firm.destroy rescue "do nothing"
assert_equal 3, Client.all.merge!(where: "firm_id=#{firm.id}").to_a.size
end
def test_dependence_on_account
num_accounts = Account.count
companies(:first_firm).destroy
assert_equal num_accounts - 1, Account.count
end
def test_depends_and_nullify
num_accounts = Account.count
core = companies(:rails_core)
assert_equal accounts(:rails_core_account), core.account
assert_equal companies(:leetsoft, :jadedpixel), core.companies
core.destroy
assert_nil accounts(:rails_core_account).reload.firm_id
assert_nil companies(:leetsoft).reload.client_of
assert_nil companies(:jadedpixel).reload.client_of
assert_equal num_accounts, Account.count
end
def test_restrict_with_exception
firm = RestrictedWithExceptionFirm.create!(name: "restrict")
firm.companies.create(name: "child")
assert !firm.companies.empty?
assert_raise(ActiveRecord::DeleteRestrictionError) { firm.destroy }
assert RestrictedWithExceptionFirm.exists?(name: "restrict")
assert firm.companies.exists?(name: "child")
end
def test_restrict_with_error
firm = RestrictedWithErrorFirm.create!(name: "restrict")
firm.companies.create(name: "child")
assert !firm.companies.empty?
firm.destroy
assert !firm.errors.empty?
assert_equal "Cannot delete record because dependent companies exist", firm.errors[:base].first
assert RestrictedWithErrorFirm.exists?(name: "restrict")
assert firm.companies.exists?(name: "child")
end
def test_restrict_with_error_with_locale
I18n.backend = I18n::Backend::Simple.new
I18n.backend.store_translations "en", activerecord: { attributes: { restricted_with_error_firm: { companies: "client companies" } } }
firm = RestrictedWithErrorFirm.create!(name: "restrict")
firm.companies.create(name: "child")
assert !firm.companies.empty?
firm.destroy
assert !firm.errors.empty?
assert_equal "Cannot delete record because dependent client companies exist", firm.errors[:base].first
assert RestrictedWithErrorFirm.exists?(name: "restrict")
assert firm.companies.exists?(name: "child")
ensure
I18n.backend.reload!
end
def test_included_in_collection
assert_equal true, companies(:first_firm).clients.include?(Client.find(2))
end
def test_included_in_collection_for_new_records
client = Client.create(name: "Persisted")
assert_nil client.client_of
assert_equal false, Firm.new.clients_of_firm.include?(client),
"includes a client that does not belong to any firm"
end
def test_adding_array_and_collection
assert_nothing_raised { Firm.first.clients + Firm.all.last.clients }
end
def test_replace_with_less
firm = Firm.all.merge!(order: "id").first
firm.clients = [companies(:first_client)]
assert firm.save, "Could not save firm"
firm.reload
assert_equal 1, firm.clients.length
end
def test_replace_with_less_and_dependent_nullify
num_companies = Company.count
companies(:rails_core).companies = []
assert_equal num_companies, Company.count
end
def test_replace_with_new
firm = Firm.all.merge!(order: "id").first
firm.clients = [companies(:second_client), Client.new("name" => "New Client")]
firm.save
firm.reload
assert_equal 2, firm.clients.length
assert_equal false, firm.clients.include?(:first_client)
end
def test_replace_failure
firm = companies(:first_firm)
account = Account.new
orig_accounts = firm.accounts.to_a
assert !account.valid?
assert !orig_accounts.empty?
error = assert_raise ActiveRecord::RecordNotSaved do
firm.accounts = [account]
end
assert_equal orig_accounts, firm.accounts
assert_equal "Failed to replace accounts because one or more of the " \
"new records could not be saved.", error.message
end
def test_replace_with_same_content
firm = Firm.first
firm.clients = []
firm.save
assert_queries(0, ignore_none: true) do
firm.clients = []
end
assert_equal [], firm.send("clients=", [])
end
def test_transactions_when_replacing_on_persisted
good = Client.new(name: "Good")
bad = Client.new(name: "Bad", raise_on_save: true)
companies(:first_firm).clients_of_firm = [good]
begin
companies(:first_firm).clients_of_firm = [bad]
rescue Client::RaisedOnSave
end
assert_equal [good], companies(:first_firm).clients_of_firm.reload
end
def test_transactions_when_replacing_on_new_record
assert_no_queries(ignore_none: false) do
firm = Firm.new
firm.clients_of_firm = [Client.new("name" => "New Client")]
end
end
def test_get_ids
assert_equal [companies(:first_client).id, companies(:second_client).id, companies(:another_first_firm_client).id], companies(:first_firm).client_ids
end
def test_get_ids_for_loaded_associations
company = companies(:first_firm)
company.clients.reload
assert_queries(0) do
company.client_ids
company.client_ids
end
end
def test_get_ids_for_unloaded_associations_does_not_load_them
company = companies(:first_firm)
assert !company.clients.loaded?
assert_equal [companies(:first_client).id, companies(:second_client).id, companies(:another_first_firm_client).id], company.client_ids
assert !company.clients.loaded?
end
def test_counter_cache_on_unloaded_association
car = Car.create(name: "My AppliCar")
assert_equal car.engines.size, 0
end
def test_get_ids_ignores_include_option
assert_equal [readers(:michael_welcome).id], posts(:welcome).readers_with_person_ids
end
def test_get_ids_for_ordered_association
assert_equal [companies(:another_first_firm_client).id, companies(:second_client).id, companies(:first_client).id], companies(:first_firm).clients_ordered_by_name_ids
end
def test_get_ids_for_association_on_new_record_does_not_try_to_find_records
Company.columns # Load schema information so we don't query below
Contract.columns # if running just this test.
company = Company.new
assert_queries(0) do
company.contract_ids
end
assert_equal [], company.contract_ids
end
def test_set_ids_for_association_on_new_record_applies_association_correctly
contract_a = Contract.create!
contract_b = Contract.create!
Contract.create! # another contract
company = Company.new(name: "Some Company")
company.contract_ids = [contract_a.id, contract_b.id]
assert_equal [contract_a.id, contract_b.id], company.contract_ids
assert_equal [contract_a, contract_b], company.contracts
company.save!
assert_equal company, contract_a.reload.company
assert_equal company, contract_b.reload.company
end
def test_assign_ids_ignoring_blanks
firm = Firm.create!(name: "Apple")
firm.client_ids = [companies(:first_client).id, nil, companies(:second_client).id, ""]
firm.save!
assert_equal 2, firm.clients.reload.size
assert_equal true, firm.clients.include?(companies(:second_client))
end
def test_get_ids_for_through
assert_equal [comments(:eager_other_comment1).id], authors(:mary).comment_ids
end
def test_modifying_a_through_a_has_many_should_raise
[
lambda { authors(:mary).comment_ids = [comments(:greetings).id, comments(:more_greetings).id] },
lambda { authors(:mary).comments = [comments(:greetings), comments(:more_greetings)] },
lambda { authors(:mary).comments << Comment.create!(body: "Yay", post_id: 424242) },
lambda { authors(:mary).comments.delete(authors(:mary).comments.first) },
].each { |block| assert_raise(ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection, &block) }
end
def test_dynamic_find_should_respect_association_order_for_through
assert_equal Comment.find(10), authors(:david).comments_desc.where("comments.type = 'SpecialComment'").first
assert_equal Comment.find(10), authors(:david).comments_desc.find_by_type("SpecialComment")
end
def test_has_many_through_respects_hash_conditions
assert_equal authors(:david).hello_posts, authors(:david).hello_posts_with_hash_conditions
assert_equal authors(:david).hello_post_comments, authors(:david).hello_post_comments_with_hash_conditions
end
def test_include_uses_array_include_after_loaded
firm = companies(:first_firm)
firm.clients.load_target
client = firm.clients.first
assert_no_queries do
assert firm.clients.loaded?
assert_equal true, firm.clients.include?(client)
end
end
def test_include_checks_if_record_exists_if_target_not_loaded
firm = companies(:first_firm)
client = firm.clients.first
firm.reload
assert ! firm.clients.loaded?
assert_queries(1) do
assert_equal true, firm.clients.include?(client)
end
assert ! firm.clients.loaded?
end
def test_include_returns_false_for_non_matching_record_to_verify_scoping
firm = companies(:first_firm)
client = Client.create!(name: "Not Associated")
assert ! firm.clients.loaded?
assert_equal false, firm.clients.include?(client)
end
def test_calling_first_nth_or_last_on_association_should_not_load_association
firm = companies(:first_firm)
firm.clients.first
firm.clients.second
firm.clients.last
assert !firm.clients.loaded?
end
def test_calling_first_or_last_on_loaded_association_should_not_fetch_with_query
firm = companies(:first_firm)
firm.clients.load_target
assert firm.clients.loaded?
assert_no_queries(ignore_none: false) do
firm.clients.first
assert_equal 2, firm.clients.first(2).size
firm.clients.last
assert_equal 2, firm.clients.last(2).size
end
end
def test_calling_first_or_last_on_existing_record_with_build_should_load_association
firm = companies(:first_firm)
firm.clients.build(name: "Foo")
assert !firm.clients.loaded?
assert_queries 1 do
firm.clients.first
firm.clients.second
firm.clients.last
end
assert firm.clients.loaded?
end
def test_calling_first_nth_or_last_on_existing_record_with_create_should_not_load_association
firm = companies(:first_firm)
firm.clients.create(name: "Foo")
assert !firm.clients.loaded?
assert_queries 3 do
firm.clients.first
firm.clients.second
firm.clients.last
end
assert !firm.clients.loaded?
end
def test_calling_first_nth_or_last_on_new_record_should_not_run_queries
firm = Firm.new
assert_no_queries do
firm.clients.first
firm.clients.second
firm.clients.last
end
end
def test_calling_first_or_last_with_integer_on_association_should_not_load_association
firm = companies(:first_firm)
firm.clients.create(name: "Foo")
assert !firm.clients.loaded?
assert_queries 2 do
firm.clients.first(2)
firm.clients.last(2)
end
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.load # 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 3, firm.clients.size
end
def test_calling_none_should_count_instead_of_loading_association
firm = companies(:first_firm)
assert_queries(1) do
firm.clients.none? # use count query
end
assert !firm.clients.loaded?
end
def test_calling_none_on_loaded_association_should_not_use_query
firm = companies(:first_firm)
firm.clients.load # force load
assert_no_queries { assert ! firm.clients.none? }
end
def test_calling_none_should_defer_to_collection_if_using_a_block
firm = companies(:first_firm)
assert_queries(1) do
firm.clients.expects(:size).never
firm.clients.none? { true }
end
assert firm.clients.loaded?
end
def test_calling_none_should_return_true_if_none
firm = companies(:another_firm)
assert firm.clients_like_ms.none?
assert_equal 0, firm.clients_like_ms.size
end
def test_calling_none_should_return_false_if_any
firm = companies(:first_firm)
assert !firm.limited_clients.none?
assert_equal 1, firm.limited_clients.size
end
def test_calling_one_should_count_instead_of_loading_association
firm = companies(:first_firm)
assert_queries(1) do
firm.clients.one? # use count query
end
assert !firm.clients.loaded?
end
def test_calling_one_on_loaded_association_should_not_use_query
firm = companies(:first_firm)
firm.clients.load # force load
assert_no_queries { assert ! firm.clients.one? }
end
def test_calling_one_should_defer_to_collection_if_using_a_block
firm = companies(:first_firm)
assert_queries(1) do
firm.clients.expects(:size).never
firm.clients.one? { true }
end
assert firm.clients.loaded?
end
def test_calling_one_should_return_false_if_zero
firm = companies(:another_firm)
assert ! firm.clients_like_ms.one?
assert_equal 0, firm.clients_like_ms.size
end
def test_calling_one_should_return_true_if_one
firm = companies(:first_firm)
assert firm.limited_clients.one?
assert_equal 1, firm.limited_clients.size
end
def test_calling_one_should_return_false_if_more_than_one
firm = companies(:first_firm)
assert ! firm.clients.one?
assert_equal 3, 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
firm = Namespaced::Firm.create(name: "Some Company")
firm.clients.create(name: "Some Client")
stats = Namespaced::Firm.all.merge!(
select: "#{Namespaced::Firm.table_name}.id, COUNT(#{Namespaced::Client.table_name}.id) AS num_clients",
joins: :clients,
group: "#{Namespaced::Firm.table_name}.id"
).find firm.id
assert_equal 1, stats.num_clients.to_i
ensure
ActiveRecord::Base.store_full_sti_class = old
end
def test_association_proxy_transaction_method_starts_transaction_in_association_class
Comment.expects(:transaction)
Post.first.comments.transaction do
# nothing
end
end
def test_sending_new_to_association_proxy_should_have_same_effect_as_calling_new
client_association = companies(:first_firm).clients
assert_equal client_association.new.attributes, client_association.send(:new).attributes
end
def test_creating_using_primary_key
firm = Firm.all.merge!(order: "id").first
client = firm.clients_using_primary_key.create!(name: "test")
assert_equal firm.name, client.firm_name
end
def test_defining_has_many_association_with_delete_all_dependency_lazily_evaluates_target_class
ActiveRecord::Reflection::AssociationReflection.any_instance.expects(:class_name).never
class_eval(<<-EOF, __FILE__, __LINE__ + 1)
class DeleteAllModel < ActiveRecord::Base
has_many :nonentities, :dependent => :delete_all
end
EOF
end
def test_defining_has_many_association_with_nullify_dependency_lazily_evaluates_target_class
ActiveRecord::Reflection::AssociationReflection.any_instance.expects(:class_name).never
class_eval(<<-EOF, __FILE__, __LINE__ + 1)
class NullifyModel < ActiveRecord::Base
has_many :nonentities, :dependent => :nullify
end
EOF
end
def test_attributes_are_being_set_when_initialized_from_has_many_association_with_where_clause
new_comment = posts(:welcome).comments.where(body: "Some content").build
assert_equal new_comment.body, "Some content"
end
def test_attributes_are_being_set_when_initialized_from_has_many_association_with_multiple_where_clauses
new_comment = posts(:welcome).comments.where(body: "Some content").where(type: "SpecialComment").build
assert_equal new_comment.body, "Some content"
assert_equal new_comment.type, "SpecialComment"
assert_equal new_comment.post_id, posts(:welcome).id
end
def test_include_method_in_has_many_association_should_return_true_for_instance_added_with_build
post = Post.new
comment = post.comments.build
assert_equal true, post.comments.include?(comment)
end
def test_load_target_respects_protected_attributes
topic = Topic.create!
reply = topic.replies.create(title: "reply 1")
reply.approved = false
reply.save!
# Save with a different object instance, so the instance that's still held
# in topic.relies doesn't know about the changed attribute.
reply2 = Reply.find(reply.id)
reply2.approved = true
reply2.save!
# Force loading the collection from the db. This will merge the existing
# object (reply) with what gets loaded from the db (which includes the
# changed approved attribute). approved is a protected attribute, so if mass
# assignment is used, it won't get updated and will still be false.
first = topic.replies.to_a.first
assert_equal reply.id, first.id
assert_equal true, first.approved?
end
def test_to_a_should_dup_target
ary = topics(:first).replies.to_a
target = topics(:first).replies.target
assert_not_equal target.object_id, ary.object_id
end
def test_merging_with_custom_attribute_writer
bulb = Bulb.new(color: "red")
assert_equal "RED!", bulb.color
car = Car.create!
car.bulbs << bulb
assert_equal "RED!", car.bulbs.to_a.first.color
end
def test_abstract_class_with_polymorphic_has_many
post = SubStiPost.create! title: "fooo", body: "baa"
tagging = Tagging.create! taggable: post
assert_equal [tagging], post.taggings
end
def test_with_polymorphic_has_many_with_custom_columns_name
post = Post.create! title: "foo", body: "bar"
image = Image.create!
post.images << image
assert_equal [image], post.images
end
def test_build_with_polymorphic_has_many_does_not_allow_to_override_type_and_id
welcome = posts(:welcome)
tagging = welcome.taggings.build(taggable_id: 99, taggable_type: "ShouldNotChange")
assert_equal welcome.id, tagging.taggable_id
assert_equal "Post", tagging.taggable_type
end
def test_dont_call_save_callbacks_twice_on_has_many
firm = companies(:first_firm)
contract = firm.contracts.create!
assert_equal 1, contract.hi_count
assert_equal 1, contract.bye_count
end
def test_association_attributes_are_available_to_after_initialize
car = Car.create(name: "honda")
bulb = car.bulbs.build
assert_equal car.id, bulb.attributes_after_initialize["car_id"]
end
def test_attributes_are_set_when_initialized_from_has_many_null_relationship
car = Car.new name: "honda"
bulb = car.bulbs.where(name: "headlight").first_or_initialize
assert_equal "headlight", bulb.name
end
def test_attributes_are_set_when_initialized_from_polymorphic_has_many_null_relationship
post = Post.new title: "title", body: "bar"
tag = Tag.create!(name: "foo")
tagging = post.taggings.where(tag: tag).first_or_initialize
assert_equal tag.id, tagging.tag_id
assert_equal "Post", tagging.taggable_type
end
def test_replace
car = Car.create(name: "honda")
bulb1 = car.bulbs.create
bulb2 = Bulb.create
assert_equal [bulb1], car.bulbs
car.bulbs.replace([bulb2])
assert_equal [bulb2], car.bulbs
assert_equal [bulb2], car.reload.bulbs
end
def test_replace_returns_target
car = Car.create(name: "honda")
bulb1 = car.bulbs.create
bulb2 = car.bulbs.create
bulb3 = Bulb.create
assert_equal [bulb1, bulb2], car.bulbs
result = car.bulbs.replace([bulb3, bulb1])
assert_equal [bulb1, bulb3], car.bulbs
assert_equal [bulb1, bulb3], result
end
def test_collection_association_with_private_kernel_method
firm = companies(:first_firm)
assert_equal [accounts(:signals37)], firm.accounts.open
end
test "first_or_initialize adds the record to the association" do
firm = Firm.create! name: "omg"
client = firm.clients_of_firm.first_or_initialize
assert_equal [client], firm.clients_of_firm
end
test "first_or_create adds the record to the association" do
firm = Firm.create! name: "omg"
firm.clients_of_firm.load_target
client = firm.clients_of_firm.first_or_create name: "lol"
assert_equal [client], firm.clients_of_firm
assert_equal [client], firm.reload.clients_of_firm
end
test "delete_all, when not loaded, doesn't load the records" do
post = posts(:welcome)
assert post.taggings_with_delete_all.count > 0
assert !post.taggings_with_delete_all.loaded?
# 2 queries: one DELETE and another to update the counter cache
assert_queries(2) do
post.taggings_with_delete_all.delete_all
end
end
test "has many associations on new records use null relations" do
post = Post.new
assert_no_queries(ignore_none: false) do
assert_equal [], post.comments
assert_equal [], post.comments.where(body: "omg")
assert_equal [], post.comments.pluck(:body)
assert_equal 0, post.comments.sum(:id)
assert_equal 0, post.comments.count
end
end
test "collection proxy respects default scope" do
author = authors(:mary)
assert !author.first_posts.exists?
end
test "association with extend option" do
post = posts(:welcome)
assert_equal "lifo", post.comments_with_extend.author
assert_equal "hello", post.comments_with_extend.greeting
end
test "association with extend option with multiple extensions" do
post = posts(:welcome)
assert_equal "lifo", post.comments_with_extend_2.author
assert_equal "hullo", post.comments_with_extend_2.greeting
end
test "extend option affects per association" do
post = posts(:welcome)
assert_equal "lifo", post.comments_with_extend.author
assert_equal "lifo", post.comments_with_extend_2.author
assert_equal "hello", post.comments_with_extend.greeting
assert_equal "hullo", post.comments_with_extend_2.greeting
end
test "delete record with complex joins" do
david = authors(:david)
post = david.posts.first
post.type = "PostWithSpecialCategorization"
post.save
categorization = post.categorizations.first
categorization.special = true
categorization.save
assert_not_equal [], david.posts_with_special_categorizations
david.posts_with_special_categorizations = []
assert_equal [], david.posts_with_special_categorizations
end
test "does not duplicate associations when used with natural primary keys" do
speedometer = Speedometer.create!(id: "4")
speedometer.minivans.create!(minivan_id: "a-van-red" , name: "a van", color: "red")
assert_equal 1, speedometer.minivans.to_a.size, "Only one association should be present:\n#{speedometer.minivans.to_a}"
assert_equal 1, speedometer.reload.minivans.to_a.size
end
test "can unscope the default scope of the associated model" do
car = Car.create!
bulb1 = Bulb.create! name: "defaulty", car: car
bulb2 = Bulb.create! name: "other", car: car
assert_equal [bulb1], car.bulbs
assert_equal [bulb1, bulb2], car.all_bulbs.sort_by(&:id)
end
test "can unscope and where the default scope of the associated model" do
Car.has_many :other_bulbs, -> { unscope(where: [:name]).where(name: "other") }, class_name: "Bulb"
car = Car.create!
bulb1 = Bulb.create! name: "defaulty", car: car
bulb2 = Bulb.create! name: "other", car: car
assert_equal [bulb1], car.bulbs
assert_equal [bulb2], car.other_bulbs
end
test "can rewhere the default scope of the associated model" do
Car.has_many :old_bulbs, -> { rewhere(name: "old") }, class_name: "Bulb"
car = Car.create!
bulb1 = Bulb.create! name: "defaulty", car: car
bulb2 = Bulb.create! name: "old", car: car
assert_equal [bulb1], car.bulbs
assert_equal [bulb2], car.old_bulbs
end
test "unscopes the default scope of associated model when used with include" do
car = Car.create!
bulb = Bulb.create! name: "other", car: car
assert_equal bulb, Car.find(car.id).all_bulbs.first
assert_equal bulb, Car.includes(:all_bulbs).find(car.id).all_bulbs.first
end
test "raises RecordNotDestroyed when replaced child can't be destroyed" do
car = Car.create!
original_child = FailedBulb.create!(car: car)
error = assert_raise(ActiveRecord::RecordNotDestroyed) do
car.failed_bulbs = [FailedBulb.create!]
end
assert_equal [original_child], car.reload.failed_bulbs
assert_equal "Failed to destroy the record", error.message
end
test "updates counter cache when default scope is given" do
topic = DefaultRejectedTopic.create approved: true
assert_difference "topic.reload.replies_count", 1 do
topic.approved_replies.create!
end
end
test "dangerous association name raises ArgumentError" do
[:errors, "errors", :save, "save"].each do |name|
assert_raises(ArgumentError, "Association #{name} should not be allowed") do
Class.new(ActiveRecord::Base) do
has_many name
end
end
end
end
test "passes custom context validation to validate children" do
pirate = FamousPirate.new
pirate.famous_ships << ship = FamousShip.new
assert pirate.valid?
assert_not pirate.valid?(:conference)
assert_equal "can't be blank", ship.errors[:name].first
end
test "association with instance dependent scope" do
bob = authors(:bob)
Post.create!(title: "signed post by bob", body: "stuff", author: authors(:bob))
Post.create!(title: "anonymous post", body: "more stuff", author: authors(:bob))
assert_equal ["misc post by bob", "other post by bob",
"signed post by bob"], bob.posts_with_signature.map(&:title).sort
assert_equal [], authors(:david).posts_with_signature.map(&:title)
end
test "associations autosaves when object is already persisted" do
bulb = Bulb.create!
tyre = Tyre.create!
car = Car.create! do |c|
c.bulbs << bulb
c.tyres << tyre
end
assert_equal 1, car.bulbs.count
assert_equal 1, car.tyres.count
end
test "associations replace in memory when records have the same id" do
bulb = Bulb.create!
car = Car.create!(bulbs: [bulb])
new_bulb = Bulb.find(bulb.id)
new_bulb.name = "foo"
car.bulbs = [new_bulb]
assert_equal "foo", car.bulbs.first.name
end
test "in memory replacement executes no queries" do
bulb = Bulb.create!
car = Car.create!(bulbs: [bulb])
new_bulb = Bulb.find(bulb.id)
assert_no_queries do
car.bulbs = [new_bulb]
end
end
test "in memory replacements do not execute callbacks" do
raise_after_add = false
klass = Class.new(ActiveRecord::Base) do
self.table_name = :cars
has_many :bulbs, after_add: proc { raise if raise_after_add }
def self.name
"Car"
end
end
bulb = Bulb.create!
car = klass.create!(bulbs: [bulb])
new_bulb = Bulb.find(bulb.id)
raise_after_add = true
assert_nothing_raised do
car.bulbs = [new_bulb]
end
end
test "in memory replacements sets inverse instance" do
bulb = Bulb.create!
car = Car.create!(bulbs: [bulb])
new_bulb = Bulb.find(bulb.id)
car.bulbs = [new_bulb]
assert_same car, new_bulb.car
end
test "in memory replacement maintains order" do
first_bulb = Bulb.create!
second_bulb = Bulb.create!
car = Car.create!(bulbs: [first_bulb, second_bulb])
same_bulb = Bulb.find(first_bulb.id)
car.bulbs = [second_bulb, same_bulb]
assert_equal [first_bulb, second_bulb], car.bulbs
end
test "prevent double insertion of new object when the parent association loaded in the after save callback" do
reset_callbacks(:save, Bulb) do
Bulb.after_save { |record| record.car.bulbs.load }
car = Car.create!
car.bulbs << Bulb.new
assert_equal 1, car.bulbs.size
end
end
test "prevent double firing the before save callback of new object when the parent association saved in the callback" do
reset_callbacks(:save, Bulb) do
count = 0
Bulb.before_save { |record| record.car.save && count += 1 }
car = Car.create!
car.bulbs.create!
assert_equal 1, count
end
end
class AuthorWithErrorDestroyingAssociation < ActiveRecord::Base
self.table_name = "authors"
has_many :posts_with_error_destroying,
class_name: "PostWithErrorDestroying",
foreign_key: :author_id,
dependent: :destroy
end
class PostWithErrorDestroying < ActiveRecord::Base
self.table_name = "posts"
self.inheritance_column = nil
before_destroy -> { throw :abort }
end
def test_destroy_does_not_raise_when_association_errors_on_destroy
assert_no_difference "AuthorWithErrorDestroyingAssociation.count" do
author = AuthorWithErrorDestroyingAssociation.first
assert_not author.destroy
end
end
def test_destroy_with_bang_bubbles_errors_from_associations
error = assert_raises ActiveRecord::RecordNotDestroyed do
AuthorWithErrorDestroyingAssociation.first.destroy!
end
assert_instance_of PostWithErrorDestroying, error.record
end
def test_ids_reader_memoization
car = Car.create!(name: "Tofaş")
bulb = Bulb.create!(car: car)
assert_equal [bulb.id], car.bulb_ids
assert_no_queries { car.bulb_ids }
end
def test_loading_association_in_validate_callback_doesnt_affect_persistence
reset_callbacks(:validation, Bulb) do
Bulb.after_validation { |record| record.car.bulbs.load }
car = Car.create!(name: "Car")
bulb = car.bulbs.create!
assert_equal [bulb], car.bulbs
end
end
private
def force_signal37_to_load_all_clients_of_firm
companies(:first_firm).clients_of_firm.load_target
end
def reset_callbacks(kind, klass)
old_callbacks = {}
old_callbacks[klass] = klass.send("_#{kind}_callbacks").dup
klass.subclasses.each do |subclass|
old_callbacks[subclass] = subclass.send("_#{kind}_callbacks").dup
end
yield
ensure
klass.send("_#{kind}_callbacks=", old_callbacks[klass])
klass.subclasses.each do |subclass|
subclass.send("_#{kind}_callbacks=", old_callbacks[subclass])
end
end
end