I have an application built on Symfony2 + Doctrine2 which I want to create some tests for (using phpunit).
For example if I want to test a unique validator against a record in the DB, I want to create a record I can work with, but after the test I don't need it anymore. So is there a way to create temporary (or virtual) fixtures or do I have to manually create and delete them?
You can use Doctrine DataFixture and put this code in your setUp method of a unit test class:
$loader = new Doctrine\Common\DataFixtures\Loader;
$loader->loadFromDirectory('/path/to/MyDataFixtures');
$purger = new Doctrine\Common\DataFixtures\Purger\ORMPurger($em);
$executor = new Doctrine\Common\DataFixtures\Executor\ORMExecutor($em, $purger);
$executor->execute($loader->getFixtures());
You can refer to the docs to see how create DataFixture classes.
Here is a good example of how to do it: Symfony 2 + Doctrine 2 + PHPUnit 3.5: Serialization of closure exception
PS: I assume you have a working $em (EntityManager) in this example.