log4js set level test

conf.json

{
  "appenders": [
    {
      "type": "file",
      "filename": "info.log",
      "maxLogSize": 20480,
      "backups": 10,
      "level": "INFO"
    },
    {
      "type": "file",
      "filename": "error.log",
      "maxLogSize": 20480,
      "backups": 10,
      "level": "ERROR"
    }
  ]
}

test.js

var log4js = require('log4js');
log4js.configure('./log4js.json', {reloadSecs: 300});

var logger = log4js.getLogger();

logger.warn('warn');
logger.error('error');
logger.info('info');
logger.debug('debug');

Conf.json doesn't configure log level properly and the error.log contains messages of all levels.