public List<String> getLogFiles(long testId) {
		File logFileDirectory = getLogFileDirectory(String.valueOf(testId));
		if (!logFileDirectory.exists() || !logFileDirectory.isDirectory()) {
			return Collections.emptyList();
		}
		return asList(requireNonNull(logFileDirectory.list()));
	}
Get log files list on the given test is.

@param testId testId
@return logFilesList log file list of that test
ngrinder-controller/src/main/java/org/ngrinder/perftest/service/PerfTestService.java