We have a set of PHPUnit tests running against a Propel/PDO application. Recently, with a recent increase in the number of tests, we’ve found that we’ve been hitting MySQL’s max_connections or max_user_connections limit (see /etc/mysql/my.cnf on the MySQL server).
When writing unit tests, it’s often desirable to ‘mimick’ a backend call to web service or database (without using the real thing backend). Ideally you need this to be quick and easy to do. One way of doing this is to use mock or double objects. This article discusses their use with PHPUnit (a unit […]