require 'helper' module Arel describe 'delete manager' do describe 'new' do it 'takes an engine' do Arel::DeleteManager.new end end describe 'from' do it 'uses from' do table = Table.new(:users) dm = Arel::DeleteManager.new dm.from table dm.to_sql.must_be_like %{ DELETE FROM "users" } end it 'chains' do table = Table.new(:users) dm = Arel::DeleteManager.new dm.from(table).must_equal dm end end describe 'where' do it 'uses where values' do table = Table.new(:users) dm = Arel::DeleteManager.new dm.from table dm.where table[:id].eq(10) dm.to_sql.must_be_like %{ DELETE FROM "users" WHERE "users"."id" = 10} end it 'chains' do table = Table.new(:users) dm = Arel::DeleteManager.new dm.where(table[:id].eq(10)).must_equal dm end end end end