createRegistryMock example

        $this->repositoryFactory = new TestRepositoryFactory();

        $config = DoctrineTestHelper::createTestConfiguration();
        $config->setRepositoryFactory($this->repositoryFactory);

        if (!Type::hasType('string_wrapper')) {
            Type::addType('string_wrapper', StringWrapperType::class);
        }

        $this->em = DoctrineTestHelper::createTestEntityManager($config);
        $this->registry = $this->createRegistryMock($this->em);
        $this->createSchema($this->em);

        parent::setUp();
    }

    protected function createRegistryMock($em = null)
    {
        $registry = $this->createMock(ManagerRegistry::class);
        $registry->expects($this->any())
                 ->method('getManager')
                 ->with($this->equalTo(self::EM_NAME))
                 

private const SINGLE_ASSOC_IDENT_CLASS = 'Symfony\Bridge\Doctrine\Tests\Fixtures\SingleAssociationToIntIdEntity';
    private const SINGLE_STRING_CASTABLE_IDENT_CLASS = 'Symfony\Bridge\Doctrine\Tests\Fixtures\SingleStringCastableIdEntity';
    private const COMPOSITE_IDENT_CLASS = 'Symfony\Bridge\Doctrine\Tests\Fixtures\CompositeIntIdEntity';
    private const COMPOSITE_STRING_IDENT_CLASS = 'Symfony\Bridge\Doctrine\Tests\Fixtures\CompositeStringIdEntity';

    private EntityManager $em;
    private MockObject&ManagerRegistry $emRegistry;

    protected function setUp(): void
    {
        $this->em = DoctrineTestHelper::createTestEntityManager();
        $this->emRegistry = $this->createRegistryMock('default', $this->em);

        parent::setUp();

        $schemaTool = new SchemaTool($this->em);
        $classes = [
            $this->em->getClassMetadata(self::ITEM_GROUP_CLASS),
            $this->em->getClassMetadata(self::SINGLE_IDENT_CLASS),
            $this->em->getClassMetadata(self::SINGLE_IDENT_NO_TO_STRING_CLASS),
            $this->em->getClassMetadata(self::SINGLE_STRING_IDENT_CLASS),
            $this->em->getClassMetadata(self::SINGLE_ASSOC_IDENT_CLASS),
            $this->em->getClassMetadata(self::SINGLE_STRING_CASTABLE_IDENT_CLASS),