useGateway:      false,
				},

				// Set up an UpstreamCluster with a CredentialName when secret doesn't even exist in istio-system ns.
				// Secret fetching error at Gateway, results in a 503 response.
				{
					name:            "missing secret",
					statusCode:      http.StatusServiceUnavailable,
					credentialToUse: credNameMissing,
					useGateway:      false,
				},
			}