}

		oldestService := getOldestService(services...)
		oldestProtocol := oldestService.Ports[0].Protocol
		if oldestProtocol != protocol.HTTP && isHTTPListener(listeners[0]) {
			t.Fatal("expected TCP listener, found HTTP")
		} else if oldestProtocol == protocol.HTTP && !isHTTPListener(listeners[0]) {
			t.Fatal("expected HTTP listener, found TCP")
		}

		// Validate that listener conflict preserves the listener of oldest service.