if err != nil {
				return nil, err
			}
			readers = append(readers, dirReaders...)
		} else {
			if !isValidFile(f) {
				fmt.Fprintf(cmd.ErrOrStderr(), "Skipping file %v, recognized file extensions are: %v\n", f, fileExtensions)
				continue
			}
			rs, err := gatherFile(f)
			if err != nil {
				return nil, err
			}
			readers = append(readers, rs)
		}
	}

		},
		{
			execClientConfig: cannedResponseMap,
			args:             strings.Split("--generation=1 not-service foo.default", " "),
			wantException:    true,
			expectedOutput:   "type not-service is not recognized",
		},
		{
			execClientConfig: cannedResponseMap,
			args:             strings.Split("--timeout 20ms virtual-service bar.default", " "),
			wantException:    true,

						if !strings.Contains(loggerName, loggerLevel[0]) && loggerLevel[0] != defaultLoggerName {
							return fmt.Errorf("unrecognized logger name: %v", loggerLevel[0])
						}
						level, ok := stringToLevel[loggerLevel[1]]
						if !ok {
							return fmt.Errorf("unrecognized logging level: %v", loggerLevel[1])
						}
						destLoggerLevels[loggerLevel[0]] = level
					}
				}
			}

			expectedString:   "unrecognized logging level: xxx",
			wantException:    true,
		},
		{ // logger name invalid
			execClientConfig: loggingConfig,
			args:             strings.Split("log details-v1-5b7f94f9bc-wp5tb --level xxx:debug", " "),
			expectedString:   "unrecognized logger name: xxx",
			wantException:    true,
		},

		},
		{ // logger name invalid when namespacing is used improperly
			execClientConfig: loggingConfig,
			args:             strings.Split("log ztunnel-9v7nw --level ztunnel:::pool:debug", " "),
			expectedString:   "unrecognized logging level: pool:debug",
			wantException:    true,
		},
		{ // logger name valid and logging level valid
			execClientConfig: loggingConfig,

						level, ok := stringToLevel[ol]
						if ok {
							destLoggerLevels = map[string]Level{
								defaultLoggerName: level,
							}
						} else {
							return fmt.Errorf("unrecognized logging level: %v", ol)
						}
					} else {
						logParts := strings.Split(ol, "::") // account for any specified namespace
						loggerAndLevelOnly := logParts[len(logParts)-1]