ZF + Doctrine2 error phpUnit: PDOExeption: you cannot serialize or unserialize PDO instances

Question

I am using dynamicGuys doctrine2 integration within zend framework (https://github.com/dynamicguy/zf1doctrine2). It works, but if I want to do tests with phpUnit, I get this error: PDOExeption: you cannot serialize or unserialize PDO instances

I searched a bit and I found out that if I comment on line 44 in this file: https://github.com/dynamicguy/zf1doctrine2/blob/master/library/ZendX/Doctrine2/Application/Resource/Entitymanagerfactory.php phpUnit works, but, of course, the rest of the application does not work, since the object manager will not be returned

Any ideas on where the error comes from?

Answer 1

This has something to do with PHPUnit for backing up global variables and static attributes between each test. If you have a PDO instance, it breaks up when you try to serialize. I ran into a similar problem, and I could not find where the PDO instance was saved as a global parameter, but disconnected backupGlobals and backupStaticAttributes in the right check, it helped.

/** * Search test. * * @backupGlobals disabled * @backupStaticAttributes disabled * * @author Steven Rosato */ class SearchControllerTest extends \Majisti\Test\TestCase { ... } 

source: http://sebastian-bergmann.de/archives/797-Global-Variables-and-PHPUnit.html