karma-log-reporter

About

This is a customized karma report that captures console log messages into file. It is inspired by karma-json-log-reporter. I created this report because I need a reporter that can log plain text.

Usage

npm install karma-log-reporter --save-dev

Configuration

Simple text log

// karma.conf.js
module.exports = function(config) {
  config.set({
    "logReporter": {
      "outputPath": "test/some/path/", // default name is current directory
      "logFileName": "logfile.log" // default name is logFile_month_day_year_hr:min:sec.log
    },
    "plugins": [
      "karma-log-reporter"
    ],
    "reporters": ["log-reporter"]
  });
};

log with filter_key

A filter_key can be specified in the configuration to only log to file when filter_key is provided in console.log.

To achieve this, provide a filter_key in configuration first:

// karma.conf.js
module.exports = function(config) {
  config.set({
    "logReporter": {
      "outputPath": "test/some/path/",
      "logFileName": "logfile.log",
      "filter_key": "log-filter"
    },
 
    ...
  });
};

Then only this format will be logged into file.

\\ this will be logged.
console.log(JSON.stringify({filter_key: 'log-filter', message: 'this message will be logged to file.'}));
 
\\ this will not be logged.
console.log('this message will not be logged to file')