node_modules/log4js/test/with-logLevelFilter.json

{
  "appenders": [
    { 
      "category": "tests", 
      "type": "logLevelFilter",
      "level": "WARN",
      "appender": {
        "type": "file",
        "filename": "test/logLevelFilter-warnings.log", 
        "layout": { 
          "type": "messagePassThrough" 
        } 
      }
    },
    { 
      "category": "tests", 
      "type": "file",
      "filename": "test/logLevelFilter.log", 
      "layout": { 
        "type": "messagePassThrough" 
      } 
    }
  ],
  
  "levels": {
    "tests":  "DEBUG"
  }
}