)

func verifyBinary(u *url.URL, sha256Sum []byte, releaseInfo, mode string, reader io.Reader) (err error) {
	if !updateInProgress.CompareAndSwap(0, 1) {
		return errors.New("update already in progress")
	}
	defer updateInProgress.Store(0)

	transport := getUpdateTransport(30 * time.Second)
	opts := selfupdate.Options{
		Hash:     crypto.SHA256,
		Checksum: sha256Sum,
	}

// scanners.
func (s *Scanner) Scan() bool {
	if s.done {
		return false
	}
	s.scanCalled = true
	// Loop until we have a token.
	for {
		// See if we can get a token with what we already have.
		// If we've run out of data but have an error, give the split function
		// a chance to recover any remaining, possibly empty token.
		if s.end > s.start || s.err != nil {

    dockerfile: Dockerfile
  command: server --console-address ":9001" http://minio{1...4}/data{1...8}
  expose:
    - "9000"
    - "9001"
  environment:
    MINIO_CI_CD: 1
  healthcheck:
    test: ["CMD", "mc", "ready", "local"]
    interval: 5s
    timeout: 5s
    retries: 5

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:

export MC_HOST_sitea=http://minio:minio123@127.0.0.1:9001
export MC_HOST_siteb=http://minio:minio123@127.0.0.1:9004
export MC_HOST_sitec=http://minio:minio123@127.0.0.1:9006

./mc ready sitea
./mc ready siteb
./mc ready sitec

./mc mb sitea/bucket
./mc version enable sitea/bucket
./mc mb -l sitea/olockbucket

./mc mb siteb/bucket/
./mc version enable siteb/bucket/
./mc mb -l siteb/olockbucket/

        notifyFailed(startupFailure);
      } finally {
        monitor.leave();
        dispatchListenerEvents();
      }
    } else {
      throw new IllegalStateException("Service " + this + " has already been started");
    }
    return this;
  }

  @CanIgnoreReturnValue
  @Override
  public final Service stopAsync() {
    if (monitor.enterIf(isStoppable)) {
      try {

  private static final Logger logger =
      Logger.getLogger(PerCollectionSizeTestSuiteBuilder.class.getName());

  /** Creates a runnable JUnit test suite based on the criteria already given. */
  @Override
  public TestSuite createTestSuite() {
    checkCanCreate();

    String name = getName();
    // Copy this set, so we can modify it.
    Set<Feature<?>> features = copyToSet(getFeatures());

		if q.Size > 0 {
			quotaSize = q.Size
		} else if q.Quota > 0 {
			quotaSize = q.Quota
		}
	}
	if quotaSize > 0 {
		if uint64(size) >= quotaSize { // check if file size already exceeds the quota
			return BucketQuotaExceeded{Bucket: bucket}
		}

		bui := sys.GetBucketUsageInfo(ctx, bucket)
		if bui.Size > 0 && ((bui.Size + uint64(size)) >= quotaSize) {

      val toVerify = result[result.size - 1] as X509Certificate

      // If this cert has been signed by a trusted cert, use that. Add the trusted certificate to
      // the end of the chain unless it's already present. (That would happen if the first
      // certificate in the chain is itself a self-signed and trusted CA certificate.)
      val trustedCert = trustRootIndex.findByIssuerAndSignature(toVerify)

        idx += 4;
        SMBUtil.writeInt4(maxReceiveSize, data, idx);
        idx += 4;
        SMBUtil.writeInt4(maxFragmentedSize, data, idx);
        idx += 4;

        // Reserved fields (8 bytes)
        // Already zero-initialized

        return data;
    }

    /**
     * Get size of this message
     *
     * @return size in bytes (32)
     */
    public static int size() {
        return 32;
    }

# Async Tests { #async-tests }

You have already seen how to test your **FastAPI** applications using the provided `TestClient`. Up to now, you have only seen how to write synchronous tests, without using `async` functions.