checkFieldsAndFlagsCount example

$customEntityXmlSchemaValidator,
            '',
            $this->createAppLoader(),
        );

        $customEntityXmlSchema = $customEntityLifecycleService->updatePlugin(
            Uuid::randomHex(),
            __DIR__ . '/_fixtures/CustomEntityLifecycleServiceTest/withCustomEntities/plugin'
        );
        static::assertInstanceOf(CustomEntityXmlSchema::class, $customEntityXmlSchema);

        $this->checkFieldsAndFlagsCount($customEntityXmlSchema);
    }

    public function testUpdateAppOnlyCustomEntities(): void
    {
        $customEntityPersister = $this->createMock(CustomEntityPersister::class);
        $customEntityPersister->expects(static::once())->method('update');

        $customEntitySchemaUpdater = $this->createMock(CustomEntitySchemaUpdater::class);
        $customEntitySchemaUpdater->expects(static::once())->method('update');

        $adminUiXmlSchemaValidator = new AdminUiXmlSchemaValidator();