diff options
Diffstat (limited to 'activerecord/test/cases/associations/has_one_associations_test.rb')
| -rw-r--r-- | activerecord/test/cases/associations/has_one_associations_test.rb | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb new file mode 100644 index 0000000000..9e99caa7b7 --- /dev/null +++ b/activerecord/test/cases/associations/has_one_associations_test.rb @@ -0,0 +1,318 @@ +require "cases/helper" +require 'models/developer' +require 'models/project' +require 'models/company' + +class HasOneAssociationsTest < ActiveRecord::TestCase + fixtures :accounts, :companies, :developers, :projects, :developers_projects + + def setup + Account.destroyed_account_ids.clear + end + + def test_has_one + assert_equal companies(:first_firm).account, Account.find(1) + assert_equal Account.find(1).credit_limit, companies(:first_firm).account.credit_limit + end + + def test_has_one_cache_nils + firm = companies(:another_firm) + assert_queries(1) { assert_nil firm.account } + assert_queries(0) { assert_nil firm.account } + + firms = Firm.find(:all, :include => :account) + assert_queries(0) { firms.each(&:account) } + end + + def test_can_marshal_has_one_association_with_nil_target + firm = Firm.new + assert_nothing_raised do + assert_equal firm.attributes, Marshal.load(Marshal.dump(firm)).attributes + end + + firm.account + assert_nothing_raised do + assert_equal firm.attributes, Marshal.load(Marshal.dump(firm)).attributes + end + end + + def test_proxy_assignment + company = companies(:first_firm) + assert_nothing_raised { company.account = company.account } + end + + def test_triple_equality + assert Account === companies(:first_firm).account + assert companies(:first_firm).account === Account + end + + def test_type_mismatch + assert_raises(ActiveRecord::AssociationTypeMismatch) { companies(:first_firm).account = 1 } + assert_raises(ActiveRecord::AssociationTypeMismatch) { companies(:first_firm).account = Project.find(1) } + end + + def test_natural_assignment + apple = Firm.create("name" => "Apple") + citibank = Account.create("credit_limit" => 10) + apple.account = citibank + assert_equal apple.id, citibank.firm_id + end + + def test_natural_assignment_to_nil + old_account_id = companies(:first_firm).account.id + companies(:first_firm).account = nil + companies(:first_firm).save + assert_nil companies(:first_firm).account + # account is dependent, therefore is destroyed when reference to owner is lost + assert_raises(ActiveRecord::RecordNotFound) { Account.find(old_account_id) } + end + + def test_assignment_without_replacement + apple = Firm.create("name" => "Apple") + citibank = Account.create("credit_limit" => 10) + apple.account = citibank + assert_equal apple.id, citibank.firm_id + + hsbc = apple.build_account({ :credit_limit => 20}, false) + assert_equal apple.id, hsbc.firm_id + hsbc.save + assert_equal apple.id, citibank.firm_id + + nykredit = apple.create_account({ :credit_limit => 30}, false) + assert_equal apple.id, nykredit.firm_id + assert_equal apple.id, citibank.firm_id + assert_equal apple.id, hsbc.firm_id + end + + def test_assignment_without_replacement_on_create + apple = Firm.create("name" => "Apple") + citibank = Account.create("credit_limit" => 10) + apple.account = citibank + assert_equal apple.id, citibank.firm_id + + hsbc = apple.create_account({:credit_limit => 10}, false) + assert_equal apple.id, hsbc.firm_id + hsbc.save + assert_equal apple.id, citibank.firm_id + end + + def test_dependence + num_accounts = Account.count + + firm = Firm.find(1) + assert !firm.account.nil? + account_id = firm.account.id + assert_equal [], Account.destroyed_account_ids[firm.id] + + firm.destroy + assert_equal num_accounts - 1, Account.count + assert_equal [account_id], Account.destroyed_account_ids[firm.id] + end + + def test_exclusive_dependence + num_accounts = Account.count + + firm = ExclusivelyDependentFirm.find(9) + assert !firm.account.nil? + account_id = firm.account.id + assert_equal [], Account.destroyed_account_ids[firm.id] + + firm.destroy + assert_equal num_accounts - 1, Account.count + assert_equal [], Account.destroyed_account_ids[firm.id] + end + + def test_dependence_with_nil_associate + firm = DependentFirm.new(:name => 'nullify') + firm.save! + assert_nothing_raised { firm.destroy } + end + + def test_succesful_build_association + firm = Firm.new("name" => "GlobalMegaCorp") + firm.save + + account = firm.build_account("credit_limit" => 1000) + assert account.save + assert_equal account, firm.account + end + + def test_failing_build_association + firm = Firm.new("name" => "GlobalMegaCorp") + firm.save + + account = firm.build_account + assert !account.save + assert_equal "can't be empty", account.errors.on("credit_limit") + end + + def test_build_association_twice_without_saving_affects_nothing + count_of_account = Account.count + firm = Firm.find(:first) + account1 = firm.build_account("credit_limit" => 1000) + account2 = firm.build_account("credit_limit" => 2000) + + assert_equal count_of_account, Account.count + end + + def test_create_association + firm = Firm.create(:name => "GlobalMegaCorp") + account = firm.create_account(:credit_limit => 1000) + assert_equal account, firm.reload.account + end + + def test_build + firm = Firm.new("name" => "GlobalMegaCorp") + firm.save + + firm.account = account = Account.new("credit_limit" => 1000) + assert_equal account, firm.account + assert account.save + assert_equal account, firm.account + end + + def test_build_before_child_saved + firm = Firm.find(1) + + account = firm.account.build("credit_limit" => 1000) + assert_equal account, firm.account + assert account.new_record? + assert firm.save + assert_equal account, firm.account + assert !account.new_record? + end + + def test_build_before_either_saved + firm = Firm.new("name" => "GlobalMegaCorp") + + firm.account = account = Account.new("credit_limit" => 1000) + assert_equal account, firm.account + assert account.new_record? + assert firm.save + assert_equal account, firm.account + assert !account.new_record? + end + + def test_failing_build_association + firm = Firm.new("name" => "GlobalMegaCorp") + firm.save + + firm.account = account = Account.new + assert_equal account, firm.account + assert !account.save + assert_equal account, firm.account + assert_equal "can't be empty", account.errors.on("credit_limit") + end + + def test_create + firm = Firm.new("name" => "GlobalMegaCorp") + firm.save + firm.account = account = Account.create("credit_limit" => 1000) + assert_equal account, firm.account + end + + def test_create_before_save + firm = Firm.new("name" => "GlobalMegaCorp") + firm.account = account = Account.create("credit_limit" => 1000) + assert_equal account, firm.account + end + + def test_dependence_with_missing_association + Account.destroy_all + firm = Firm.find(1) + assert firm.account.nil? + firm.destroy + end + + def test_dependence_with_missing_association_and_nullify + Account.destroy_all + firm = DependentFirm.find(:first) + assert firm.account.nil? + firm.destroy + end + + def test_assignment_before_parent_saved + firm = Firm.new("name" => "GlobalMegaCorp") + firm.account = a = Account.find(1) + assert firm.new_record? + assert_equal a, firm.account + assert firm.save + assert_equal a, firm.account + assert_equal a, firm.account(true) + end + + def test_finding_with_interpolated_condition + firm = Firm.find(:first) + superior = firm.clients.create(:name => 'SuperiorCo') + superior.rating = 10 + superior.save + assert_equal 10, firm.clients_with_interpolated_conditions.first.rating + end + + def test_assignment_before_child_saved + firm = Firm.find(1) + firm.account = a = Account.new("credit_limit" => 1000) + assert !a.new_record? + assert_equal a, firm.account + assert_equal a, firm.account + assert_equal a, firm.account(true) + end + + def test_save_fails_for_invalid_has_one + firm = Firm.find(:first) + assert firm.valid? + + firm.account = Account.new + + assert !firm.account.valid? + assert !firm.valid? + assert !firm.save + assert_equal "is invalid", firm.errors.on("account") + end + + def test_assignment_before_either_saved + firm = Firm.new("name" => "GlobalMegaCorp") + firm.account = a = Account.new("credit_limit" => 1000) + assert firm.new_record? + assert a.new_record? + assert_equal a, firm.account + assert firm.save + assert !firm.new_record? + assert !a.new_record? + assert_equal a, firm.account + assert_equal a, firm.account(true) + end + + def test_not_resaved_when_unchanged + firm = Firm.find(:first, :include => :account) + firm.name += '-changed' + assert_queries(1) { firm.save! } + + firm = Firm.find(:first) + firm.account = Account.find(:first) + assert_queries(Firm.partial_updates? ? 0 : 1) { firm.save! } + + firm = Firm.find(:first).clone + firm.account = Account.find(:first) + assert_queries(2) { firm.save! } + + firm = Firm.find(:first).clone + firm.account = Account.find(:first).clone + assert_queries(2) { firm.save! } + end + + def test_save_still_works_after_accessing_nil_has_one + jp = Company.new :name => 'Jaded Pixel' + jp.dummy_account.nil? + + assert_nothing_raised do + jp.save! + end + end + + def test_cant_save_readonly_association + assert_raise(ActiveRecord::ReadOnlyRecord) { companies(:first_firm).readonly_account.save! } + assert companies(:first_firm).readonly_account.readonly? + end + +end |