JezK
Edit File: test_mysql.rb
require 'helper' module Arel module Visitors describe 'the mysql visitor' do before do @visitor = MySQL.new Table.engine end ### # :'( # http://dev.mysql.com/doc/refman/5.0/en/select.html#id3482214 it 'defaults limit to 18446744073709551615' do stmt = Nodes::SelectStatement.new stmt.offset = Nodes::Offset.new(1) sql = @visitor.accept(stmt) sql.must_be_like "SELECT FROM DUAL LIMIT 18446744073709551615 OFFSET 1" end it 'uses DUAL for empty from' do stmt = Nodes::SelectStatement.new sql = @visitor.accept(stmt) sql.must_be_like "SELECT FROM DUAL" end it 'uses FOR UPDATE when locking' do stmt = Nodes::SelectStatement.new stmt.lock = Nodes::Lock.new sql = @visitor.accept(stmt) sql.must_be_like "SELECT FROM DUAL FOR UPDATE" end end end end