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315 lines
11 KiB
Ruby
315 lines
11 KiB
Ruby
require "cases/helper"
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require 'models/computer'
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require 'models/developer'
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require 'models/project'
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require 'models/company'
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require 'models/categorization'
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require 'models/category'
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require 'models/post'
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require 'models/author'
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require 'models/comment'
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require 'models/tag'
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require 'models/tagging'
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require 'models/person'
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require 'models/reader'
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require 'models/parrot'
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require 'models/ship_part'
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require 'models/ship'
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require 'models/liquid'
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require 'models/molecule'
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require 'models/electron'
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class AssociationsTest < ActiveRecord::TestCase
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fixtures :accounts, :companies, :developers, :projects, :developers_projects,
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:computers, :people, :readers
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def test_eager_loading_should_not_change_count_of_children
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liquid = Liquid.create(:name => 'salty')
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molecule = liquid.molecules.create(:name => 'molecule_1')
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molecule.electrons.create(:name => 'electron_1')
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molecule.electrons.create(:name => 'electron_2')
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liquids = Liquid.includes(:molecules => :electrons).references(:molecules).where('molecules.id is not null')
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assert_equal 1, liquids[0].molecules.length
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end
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def test_clear_association_cache_stored
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firm = Firm.find(1)
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assert_kind_of Firm, firm
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firm.clear_association_cache
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assert_equal Firm.find(1).clients.collect{ |x| x.name }.sort, firm.clients.collect{ |x| x.name }.sort
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end
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def test_clear_association_cache_new_record
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firm = Firm.new
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client_stored = Client.find(3)
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client_new = Client.new
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client_new.name = "The Joneses"
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clients = [ client_stored, client_new ]
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firm.clients << clients
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assert_equal clients.map(&:name).to_set, firm.clients.map(&:name).to_set
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firm.clear_association_cache
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assert_equal clients.map(&:name).to_set, firm.clients.map(&:name).to_set
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end
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def test_loading_the_association_target_should_keep_child_records_marked_for_destruction
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ship = Ship.create!(:name => "The good ship Dollypop")
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part = ship.parts.create!(:name => "Mast")
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part.mark_for_destruction
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ship.parts.send(:load_target)
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assert ship.parts[0].marked_for_destruction?
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end
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def test_loading_the_association_target_should_load_most_recent_attributes_for_child_records_marked_for_destruction
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ship = Ship.create!(:name => "The good ship Dollypop")
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part = ship.parts.create!(:name => "Mast")
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part.mark_for_destruction
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ShipPart.find(part.id).update_columns(name: 'Deck')
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ship.parts.send(:load_target)
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assert_equal 'Deck', ship.parts[0].name
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end
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def test_include_with_order_works
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assert_nothing_raised {Account.all.merge!(:order => 'id', :includes => :firm).first}
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assert_nothing_raised {Account.all.merge!(:order => :id, :includes => :firm).first}
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end
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def test_bad_collection_keys
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assert_raise(ArgumentError, 'ActiveRecord should have barked on bad collection keys') do
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Class.new(ActiveRecord::Base).has_many(:wheels, :name => 'wheels')
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end
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end
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def test_should_construct_new_finder_sql_after_create
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person = Person.new :first_name => 'clark'
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assert_equal [], person.readers.to_a
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person.save!
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reader = Reader.create! :person => person, :post => Post.new(:title => "foo", :body => "bar")
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assert person.readers.find(reader.id)
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end
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def test_force_reload
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firm = Firm.new("name" => "A New Firm, Inc")
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firm.save
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firm.clients.each {|c|} # forcing to load all clients
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assert firm.clients.empty?, "New firm shouldn't have client objects"
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assert_equal 0, firm.clients.size, "New firm should have 0 clients"
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client = Client.new("name" => "TheClient.com", "firm_id" => firm.id)
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client.save
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assert firm.clients.empty?, "New firm should have cached no client objects"
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assert_equal 0, firm.clients.size, "New firm should have cached 0 clients count"
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assert !firm.clients(true).empty?, "New firm should have reloaded client objects"
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assert_equal 1, firm.clients(true).size, "New firm should have reloaded clients count"
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end
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def test_using_limitable_reflections_helper
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using_limitable_reflections = lambda { |reflections| Tagging.all.send :using_limitable_reflections?, reflections }
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belongs_to_reflections = [Tagging.reflect_on_association(:tag), Tagging.reflect_on_association(:super_tag)]
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has_many_reflections = [Tag.reflect_on_association(:taggings), Developer.reflect_on_association(:projects)]
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mixed_reflections = (belongs_to_reflections + has_many_reflections).uniq
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assert using_limitable_reflections.call(belongs_to_reflections), "Belong to associations are limitable"
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assert !using_limitable_reflections.call(has_many_reflections), "All has many style associations are not limitable"
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assert !using_limitable_reflections.call(mixed_reflections), "No collection associations (has many style) should pass"
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end
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def test_force_reload_is_uncached
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firm = Firm.create!("name" => "A New Firm, Inc")
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Client.create!("name" => "TheClient.com", :firm => firm)
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ActiveRecord::Base.cache do
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firm.clients.each {}
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assert_queries(0) { assert_not_nil firm.clients.each {} }
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assert_queries(1) { assert_not_nil firm.clients(true).each {} }
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end
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end
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def test_association_with_references
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firm = companies(:first_firm)
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assert_equal ['foo'], firm.association_with_references.references_values
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end
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end
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class AssociationProxyTest < ActiveRecord::TestCase
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fixtures :authors, :posts, :categorizations, :categories, :developers, :projects, :developers_projects
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def test_push_does_not_load_target
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david = authors(:david)
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david.posts << (post = Post.new(:title => "New on Edge", :body => "More cool stuff!"))
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assert !david.posts.loaded?
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assert david.posts.include?(post)
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end
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def test_push_has_many_through_does_not_load_target
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david = authors(:david)
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david.categories << categories(:technology)
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assert !david.categories.loaded?
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assert david.categories.include?(categories(:technology))
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end
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def test_push_followed_by_save_does_not_load_target
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david = authors(:david)
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david.posts << (post = Post.new(:title => "New on Edge", :body => "More cool stuff!"))
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assert !david.posts.loaded?
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david.save
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assert !david.posts.loaded?
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assert david.posts.include?(post)
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end
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def test_push_does_not_lose_additions_to_new_record
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josh = Author.new(:name => "Josh")
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josh.posts << Post.new(:title => "New on Edge", :body => "More cool stuff!")
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assert josh.posts.loaded?
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assert_equal 1, josh.posts.size
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end
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def test_save_on_parent_does_not_load_target
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david = developers(:david)
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assert !david.projects.loaded?
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david.update_columns(created_at: Time.now)
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assert !david.projects.loaded?
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end
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def test_inspect_does_not_reload_a_not_yet_loaded_target
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andreas = Developer.new :name => 'Andreas', :log => 'new developer added'
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assert !andreas.audit_logs.loaded?
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assert_match(/message: "new developer added"/, andreas.audit_logs.inspect)
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end
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def test_save_on_parent_saves_children
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developer = Developer.create :name => "Bryan", :salary => 50_000
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assert_equal 1, developer.reload.audit_logs.size
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end
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def test_create_via_association_with_block
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post = authors(:david).posts.create(:title => "New on Edge") {|p| p.body = "More cool stuff!"}
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assert_equal post.title, "New on Edge"
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assert_equal post.body, "More cool stuff!"
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end
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def test_create_with_bang_via_association_with_block
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post = authors(:david).posts.create!(:title => "New on Edge") {|p| p.body = "More cool stuff!"}
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assert_equal post.title, "New on Edge"
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assert_equal post.body, "More cool stuff!"
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end
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def test_reload_returns_assocition
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david = developers(:david)
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assert_nothing_raised do
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assert_equal david.projects, david.projects.reload.reload
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end
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end
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def test_proxy_association_accessor
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david = developers(:david)
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assert_equal david.association(:projects), david.projects.proxy_association
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end
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def test_scoped_allows_conditions
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assert developers(:david).projects.merge!(where: 'foo').where_values.include?('foo')
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end
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test "getting a scope from an association" do
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david = developers(:david)
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assert david.projects.scope.is_a?(ActiveRecord::Relation)
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assert_equal david.projects, david.projects.scope
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end
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end
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class OverridingAssociationsTest < ActiveRecord::TestCase
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class Person < ActiveRecord::Base; end
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class DifferentPerson < ActiveRecord::Base; end
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class PeopleList < ActiveRecord::Base
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has_and_belongs_to_many :has_and_belongs_to_many, :before_add => :enlist
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has_many :has_many, :before_add => :enlist
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belongs_to :belongs_to
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has_one :has_one
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end
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class DifferentPeopleList < PeopleList
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# Different association with the same name, callbacks should be omitted here.
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has_and_belongs_to_many :has_and_belongs_to_many, :class_name => 'DifferentPerson'
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has_many :has_many, :class_name => 'DifferentPerson'
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belongs_to :belongs_to, :class_name => 'DifferentPerson'
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has_one :has_one, :class_name => 'DifferentPerson'
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end
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def test_habtm_association_redefinition_callbacks_should_differ_and_not_inherited
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# redeclared association on AR descendant should not inherit callbacks from superclass
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callbacks = PeopleList.before_add_for_has_and_belongs_to_many
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assert_equal([:enlist], callbacks)
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callbacks = DifferentPeopleList.before_add_for_has_and_belongs_to_many
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assert_equal([], callbacks)
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end
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def test_has_many_association_redefinition_callbacks_should_differ_and_not_inherited
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# redeclared association on AR descendant should not inherit callbacks from superclass
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callbacks = PeopleList.before_add_for_has_many
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assert_equal([:enlist], callbacks)
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callbacks = DifferentPeopleList.before_add_for_has_many
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assert_equal([], callbacks)
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end
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def test_habtm_association_redefinition_reflections_should_differ_and_not_inherited
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assert_not_equal(
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PeopleList.reflect_on_association(:has_and_belongs_to_many),
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DifferentPeopleList.reflect_on_association(:has_and_belongs_to_many)
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)
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end
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def test_has_many_association_redefinition_reflections_should_differ_and_not_inherited
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assert_not_equal(
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PeopleList.reflect_on_association(:has_many),
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DifferentPeopleList.reflect_on_association(:has_many)
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)
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end
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def test_belongs_to_association_redefinition_reflections_should_differ_and_not_inherited
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assert_not_equal(
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PeopleList.reflect_on_association(:belongs_to),
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DifferentPeopleList.reflect_on_association(:belongs_to)
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)
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end
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def test_has_one_association_redefinition_reflections_should_differ_and_not_inherited
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assert_not_equal(
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PeopleList.reflect_on_association(:has_one),
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DifferentPeopleList.reflect_on_association(:has_one)
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)
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end
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def test_requires_symbol_argument
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assert_raises ArgumentError do
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Class.new(Post) do
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belongs_to "author"
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end
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end
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end
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end
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class GeneratedMethodsTest < ActiveRecord::TestCase
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fixtures :developers, :computers, :posts, :comments
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def test_association_methods_override_attribute_methods_of_same_name
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assert_equal(developers(:david), computers(:workstation).developer)
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# this next line will fail if the attribute methods module is generated lazily
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# after the association methods module is generated
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assert_equal(developers(:david), computers(:workstation).developer)
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assert_equal(developers(:david).id, computers(:workstation)[:developer])
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end
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def test_model_method_overrides_association_method
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assert_equal(comments(:greetings).body, posts(:welcome).first_comment)
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end
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end
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