我想写一个测试用例，通过Doctrine实体管理器验证实体是否已完全持久化到数据库中。
例如：
<?php
function notPersisted() {
return new Entity();
}
function persistedButNotFlushed() {
$entity = new Entity();
$entityManager->persist($entity);
return $entity;
}
function persistedAndFlushed() {
$entity = new Entity();
$entityManager->persist($entity);
$entityManager->flush();
return $entity;
}
function persistedButNotAllChangesFlushed() {
$entity = new Entity();
$entityManager->persist($entity);
$entityManager->flush();
$entity->setFoo('bar');
$entityManager->persist($entity);
return $entity;
}
$this->assertNotPersistedToDb(notPersisted());
$this->assertNotPersistedToDb(persistedButNotFlushed());
$this->assertPersistedToDb(persistedAndFlushed());
$this->assertNotPersistedToDb(persistedButNotAllChangesFlushed());
你会怎么做？
以下是我的想法：
protected function assertEntityIsPersistedToDb($entity) {
$unitOfWork = $this->entityManager->getUnitOfWork();
$isManaged = $this->entityManager->contains($entity);
$isFlushedToDb = !$unitOfWork->isEntityScheduled($entity);
$id = $this->getEntityId($entity);
$entityClassName = get_class($entity);
$msg = "Expected entity of type $entityClassName to be persisted to the database, ";
if (!$id) {
$msg .= "but the entity does not have an id.";
}
else if (!$isManaged) {
$msg .= "but entity is not managed by the entity manager.";
}
else if (!$isFlushedToDb) {
$msg .= "but the entity has changes which have not yet been flushed.";
}
$this->assertTrue(!!$id && $isManaged && $isFlushedToDb, $msg);
}
protected function assertEntityNotPersistedToDb($entity) {
// Ensure that this is a managed entity
if (!$this->entityManager->contains($entity)) {
throw new 'PHPUnit_Framework_ExpectationFailedException(
"Unable to determine if entity is persisted to DB: the entity is not managed."
);
// Alternatively, we could maybe do an $em->merge($entity),
// and then check its state. However, this could change our application
// state, and potential effect test behavior.
}
$isFlushedToDb = !$this->entityManager->getUnitOfWork()
->isEntityScheduled($entity);
$entityClass = get_class($entity);
$msg = "Expected entity of type $entityClass not to be persisted to the database.";
$this->assertFalse($isFlushedToDb, $msg);
}
protected function getEntityId($entity) {
$idList = $this->entityManager
->getClassMetadata(get_class($entity))
->getIdentifier();
return empty($idList) ?
null : call_user_func([$entity, 'get' . ucfirst(reset($idList))]);
}
我对它进行了一些尝试，它似乎有效，尽管我还没有对它进行任何严格的测试。
根据您的工作，当您的对象中有多个关联，并且级联选项设置不正确时，分离可能会很痛苦，这两个函数可以帮助您断言实体是否在应用程序状态中管理。
static function assertEntityIsManaged(EntityManager $em, $entity) {
$isManaged = $em->contains($entity);
$entityClass = get_class($entity);
$msg = "Expected entity of type $entityClass IS NOT Managed";
assert($isManaged === TRUE, $msg);
}
static function assertEntityNotManaged(EntityManager $em, $entity) {
$isManaged = $em->contains($entity);
$entityClass = get_class($entity);
$msg = "Expected entity of type $entityClass IS Managed";
assert($isManaged === FALSE, $msg);
}
静态，因为它不是一个"正式"测试，而且我有多个实体管理器实例。