JezK
Edit File: habtm_join_table_test.rb
require 'cases/helper' class MyReader < ActiveRecord::Base has_and_belongs_to_many :my_books end class MyBook < ActiveRecord::Base has_and_belongs_to_many :my_readers end class HabtmJoinTableTest < ActiveRecord::TestCase def setup ActiveRecord::Base.connection.create_table :my_books, :force => true do |t| t.string :name end assert ActiveRecord::Base.connection.table_exists?(:my_books) ActiveRecord::Base.connection.create_table :my_readers, :force => true do |t| t.string :name end assert ActiveRecord::Base.connection.table_exists?(:my_readers) ActiveRecord::Base.connection.create_table :my_books_my_readers, :force => true do |t| t.integer :my_book_id t.integer :my_reader_id end assert ActiveRecord::Base.connection.table_exists?(:my_books_my_readers) end def teardown ActiveRecord::Base.connection.drop_table :my_books ActiveRecord::Base.connection.drop_table :my_readers ActiveRecord::Base.connection.drop_table :my_books_my_readers end uses_transaction :test_should_raise_exception_when_join_table_has_a_primary_key def test_should_raise_exception_when_join_table_has_a_primary_key if ActiveRecord::Base.connection.supports_primary_key? assert_raise ActiveRecord::ConfigurationError do jaime = MyReader.create(:name=>"Jaime") jaime.my_books << MyBook.create(:name=>'Great Expectations') end end end uses_transaction :test_should_cache_result_of_primary_key_check def test_should_cache_result_of_primary_key_check if ActiveRecord::Base.connection.supports_primary_key? ActiveRecord::Base.connection.stubs(:primary_key).with('my_books_my_readers').returns(false).once weaz = MyReader.create(:name=>'Weaz') weaz.my_books << MyBook.create(:name=>'Great Expectations') weaz.my_books << MyBook.create(:name=>'Greater Expectations') end end end