case ERROR_ACCESS_DENIED:
            return "Access denied";
        case ERROR_INVALID_STATE:
            return "Invalid state";
        default:
            return "Unknown error: 0x" + Integer.toHexString(returnCode);
        }
    }

    /**
     * Encodes the witness RPC message parameters to NDR format.

        // Assert
        assertEquals(0x00000000, actual);
    }

    @ParameterizedTest
    @ValueSource(ints = { -1, 1, 0x00FFFF00, 0x0BADF00D })
    @DisplayName("Invalid or unknown DOS codes return not-found sentinel (-1)")
    void unknownCodesReturnMinusOne(int dosCode) {
        // Act
        int actual = findNtStatusOrMinusOne(dosCode);

        // Assert
        assertEquals(-1, actual);

      TYPE_GOAWAY -> readGoAway(handler, length, flags, streamId)
      TYPE_WINDOW_UPDATE -> readWindowUpdate(handler, length, flags, streamId)
      else -> source.skip(length.toLong()) // Implementations MUST discard frames of unknown types.
    }

    return true
  }

  @Throws(IOException::class)
  private fun readHeaders(
    handler: Handler,
    length: Int,
    flags: Int,
    streamId: Int,
  ) {

            assertFalse(result.contains("command=UNKNOWN"));
        }

        @Test
        @DisplayName("Should format unknown command")
        void testToStringUnknownCommand() {
            testMessage.setCommand(0xFF);
            String result = testMessage.toString();

            assertTrue(result.contains("command=UNKNOWN"));
        }

        @Test

            this.algorithmName = "AESCMAC";
            this.provider = Crypto.getProvider();
            break;
        default:
            throw new IllegalArgumentException("Unknown dialect");
        }

        // Initialize the digest once to validate configuration
        this.digest = createMacInstance();
    }

    /**
     * Create a new Mac instance for thread-safe operations

            }
            if (dv.getDialect() == getDialectRevision()) {
                selected = dv;
            }
        }

        if (selected == null) {
            log.debug("Server returned an unknown dialect");
            return false;
        }

        if (!selected.atLeast(getConfig().getMinimumVersion()) || !selected.atMost(getConfig().getMaximumVersion())) {

	case HistogramMT:
		return "histogram"
	default:
		return "*unknown*"
	}
}

func (mt MetricType) toProm() prometheus.ValueType {
	switch mt {
	case CounterMT:
		return prometheus.CounterValue
	case GaugeMT:
		return prometheus.GaugeValue
	case HistogramMT:
		return prometheus.CounterValue
	default:
		panic(fmt.Sprintf("unknown metric type: %d", mt))
	}
}

		// Calculate reqPath
		reqPath := r.URL.RawPath
		if reqPath == "" {
			reqPath = r.URL.Path
		}

		// Calculate function name
		funcName := tc.FuncName
		if funcName == "" {
			funcName = "<unknown>"
		}

		t := madmin.TraceInfo{
			TraceType: tt,
			FuncName:  funcName,
			NodeName:  nodeName,
			Time:      reqStartTime,
			Duration:  reqEndTime.Sub(respRecorder.StartTime),

        final FessFileTransformer transformer = createInstance();

        url = null;
        exp = "";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "example:";
        exp = "unknown";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file://";

      val responseBody = response.body!!
      val contentLength = responseBody.contentLength()
      val bodySize = if (contentLength != -1L) "$contentLength-byte" else "unknown-length"
      logger.log(
        buildString {
          append("<-- ${response.code}")
          if (response.message.isNotEmpty()) append(" ${response.message}")