public function testLifecycleCallbacks($class)
{
$this->assertEquals(count($class->lifecycleCallbacks), 3);
$this->assertEquals($class->lifecycleCallbacks['prePersist'][0], 'doStuffOnPrePersist');
$this->assertEquals($class->lifecycleCallbacks['postPersist'][0], 'doStuffOnPostPersist');
$this->assertEquals($class->lifecycleCallbacks['preMarshal'][0], 'doStuffOnPreMarshal');
return $class;
}