pass  # pragma: no cover
    # the validation error does produce a close message
    assert e.value.code == status.WS_1008_POLICY_VIOLATION
    # and no error is leaked
    assert caught == []


def test_depend_err_middleware():
    """
    Verify that it is possible to write custom WebSocket middleware to catch errors
    """

    @websocket_middleware

               "legendFormat": "Internal Errors"
            },
            {
               "datasource": {
                  "type": "prometheus",
                  "uid": "$datasource"
               },
               "expr": "pilot_xds_push_context_errors",
               "legendFormat": "Push Context Errors"
            }
         ],
         "title": "Push Errors",
         "type": "timeseries"
      },

	if err := DB.Transaction(func(tx *gorm.DB) error {
		return nil
	}); err == nil {
		t.Errorf("should returns error when commit with closed conn, got error %v", err)
	}

	if err := DB.Session(&gorm.Session{PrepareStmt: true}).Transaction(func(tx *gorm.DB) error {
		return nil
	}); err == nil {
		t.Errorf("should returns error when commit with closed conn, got error %v", err)
	}
}

	if err != nil {
		return tls.Certificate{}, ErrTLSUnexpectedData(nil).Msg(err.Error())
	}
	return cert, nil
}

// EnsureCertAndKey checks if both client certificate and key paths are provided
func EnsureCertAndKey(clientCert, clientKey string) error {
	if (clientCert != "" && clientKey == "") ||
		(clientCert == "" && clientKey != "") {
		return errors.New("cert and key must be specified as a pair")
	}
	return nil

	if logIgnoreError(err) {
		return
	}
	logIf(ctx, subsystem, err, errKind...)
}

// LogIfNot prints a detailed error message during
// the execution of the server, if it is not an ignored error (either internal or given).
func LogIfNot(ctx context.Context, subsystem string, err error, ignored ...error) {
	if logIgnoreError(err) {
		return
	}
	for _, ignore := range ignored {

	default:
		return cfg, fmt.Errorf("invalid value %v for list_quorum: will default to 'strict'", listQuorum)
	}
	cfg.ListQuorum = listQuorum

	replicationPriority := env.Get(EnvAPIReplicationPriority, kvs.GetWithDefault(apiReplicationPriority, DefaultKVS))
	switch replicationPriority {
	case "slow", "fast", "auto":
	default:
		return cfg, fmt.Errorf("invalid value %v for replication_priority", replicationPriority)

			tx.Rollback()
		}
	}()
	if err := tx.Error; err != nil {
		t.Errorf("Failed to start transaction, got error %v\n", err)
	}

	if err := tx.Where("name=?", "zzjin").Delete(&User{}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)
	}

	if err := tx.Create(&User{Name: "zzjin"}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)

	return int(atomic.LoadInt32(&srv.requestCount))
}

// Init - init HTTP server
func (srv *Server) Init(listenCtx context.Context, listenErrCallback func(listenAddr string, err error)) (serve func() error, err error) {
	// Take a copy of server fields.
	var tlsConfig *tls.Config
	if srv.TLSConfig != nil {
		tlsConfig = srv.TLSConfig.Clone()
	}

These functions are there (instead of just using the classes directly) so that your editor doesn't mark errors about their types.

That way you can use your normal editor and coding tools without having to add custom configurations to disregard those errors.

	}
}

// Load - loads the metadata of bucket by name from ObjectLayer api.
// If an error is returned the returned metadata will be default initialized.
func readBucketMetadata(ctx context.Context, api ObjectLayer, name string) (BucketMetadata, error) {
	if name == "" {
		internalLogIf(ctx, errors.New("bucket name cannot be empty"), logger.WarningKind)
		return BucketMetadata{}, errInvalidArgument
	}