fetchAppScriptCount example

class ScriptPersisterTest extends TestCase
{
    use ExtensionBehaviour;
    use IntegrationTestBehaviour;

    public function testRefreshDoesNotDeleteExistingScripts(): void
    {
        $appPath = __DIR__ . '/../../Manifest/_fixtures/test';
        $this->installApp($appPath);

        static::assertSame(6, $this->fetchAppScriptCount());

        $scriptPersister = $this->getContainer()->get(ScriptPersister::class);

        $scriptPersister->refresh();

        static::assertSame(6, $this->fetchAppScriptCount());
        $this->removeApp($appPath);
    }

    private function fetchAppScriptCount(): int
    {