require "cases/helper" class MysqlConnectionTest < ActiveRecord::TestCase def setup super @connection = ActiveRecord::Base.connection end def test_no_automatic_reconnection_after_timeout assert @connection.active? @connection.update('set @@wait_timeout=1') sleep 2 assert !@connection.active? end def test_successful_reconnection_after_timeout_with_manual_reconnect assert @connection.active? @connection.update('set @@wait_timeout=1') sleep 2 @connection.reconnect! assert @connection.active? end def test_successful_reconnection_after_timeout_with_verify assert @connection.active? @connection.update('set @@wait_timeout=1') sleep 2 @connection.verify! assert @connection.active? end private def run_without_connection original_connection = ActiveRecord::Base.remove_connection begin yield original_connection ensure ActiveRecord::Base.establish_connection(original_connection) end end end