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[rbdr/cologne] / test / loggers / console.js

'use strict';

const Tap = require('tap');

const ConsoleLogger = require('../../lib/loggers/console');

// Prepare the test

const dummyFormatter = {
  values: [],
  format: function (log) {

    this.values.push(log);
    return 'lol';
  }
};

const dummyConsole = {
  values: {
    log: 0,
    warn: 0,
    error: 0,
    info: 0
  },
  _log: function (type, ...logs) {

    this.values[type] += logs.length;
  },
  log: function (...logs) {

    this._log('log', ...logs);
  },
  warn: function (...logs) {

    this._log('warn', ...logs);
  },
  error: function (...logs) {

    this._log('error', ...logs);
  },
  info: function (...logs) {

    this._log('info', ...logs);
  }
};

const logObjectA = {
  _timestamp: Date.now() + .134,
  _cologneLog: '1.0.0',
  _from: 'Dummy Logger',
  _level: 6,
  _levelString: 'info',
  message: 'MessageOne'
};

const logObjectB = {
  _timestamp: Date.now() + .134,
  _cologneLog: '1.0.0',
  _from: 'Dummy Logger',
  _level: 6,
  _levelString: 'info',
  message: 'MessageTwo'
};

const logs = [logObjectA, logObjectB];

const regularLogger = new ConsoleLogger({});
const overrideLogger = new ConsoleLogger({
  console: dummyConsole
});
const formattedLogger = new ConsoleLogger({
  console: dummyConsole,
  formatter: dummyFormatter
});

/**
 * TEST: #log() - regular
 */

Tap.equal(regularLogger.console, global.console,
  'It should default to the global console');

/**
 * TEST: #log() - override
 */

logObjectA._level = 5;
logObjectB._level = 6;
overrideLogger.log(...logs); // should go to info

logObjectA._level = 4;
logObjectB._level = 4;
overrideLogger.log(...logs); // should go to warn

logObjectA._level = 1;
logObjectB._level = 3;
overrideLogger.log(...logs); // should go to error

logObjectA._level = 0;
logObjectB._level = 2;
overrideLogger.log(...logs); // should go to error

logObjectA._level = 7;
logObjectB._level = 8;
overrideLogger.log(...logs); // should go to log

Tap.equal(dummyConsole.values.log, logs.length,
  'It should send debug messages to console\'s #log');
Tap.equal(dummyConsole.values.info, logs.length,
  'It should send info and notice messages to console\'s #info');
Tap.equal(dummyConsole.values.warn, logs.length,
  'It should send warn messages to console\'s #warn');
Tap.equal(dummyConsole.values.error, logs.length * 2,
  'It should send error messages to console\'s #error');

/**
 * TEST: #log() - with formatter
 */

formattedLogger.log(...logs); // should go to log

Tap.similar(dummyFormatter.values, logs,
  'If available, it should send the objects to the formatter');