git.r.bdr.sh - rbdr/cologne/blob - test/cologne/logger/file.js

   1 'use strict';
   2
   3 let fs = require('fs');
   4
   5 let tap = require('tap');
   6
   7 let FileLogger = require('../../../lib/cologne/logger/file');
   8
   9 // Prepare the test
  10 let logObjectA, logObjectB, rawFile, formatterFile, rawLogger, formatterLogger,
  11   params, dummyFormatter, formatterString;
  12
  13 rawFile = './raw.log';
  14 formatterFile = './formatter.log';
  15 formatterString = 'example';
  16
  17 logObjectA = {
  18   _timestamp: Date.now() + .134,
  19   _cologneLog: '1.0.0',
  20   _from: 'Dummy Logger',
  21   _level: 6,
  22   _levelString: 'info',
  23   message: 'MessageOne'
  24 };
  25
  26 logObjectB = {
  27   _timestamp: Date.now() + .134,
  28   _cologneLog: '1.0.0',
  29   _from: 'Dummy Logger',
  30   _level: 6,
  31   _levelString: 'info',
  32   message: 'MessageTwo'
  33 };
  34
  35 params = [logObjectA, logObjectB];
  36
  37
  38 dummyFormatter = {
  39   values: [],
  40   format: function (logObject) {
  41     this.values.push(logObject);
  42     return formatterString;
  43   }
  44 };
  45
  46 rawLogger = new FileLogger({
  47   file: rawFile
  48 });
  49 formatterLogger = new FileLogger({
  50   file: formatterFile,
  51   formatter: dummyFormatter
  52 });
  53
  54 /**
  55  * TEST: #log() - regular
  56  */
  57
  58 rawLogger.log.apply(rawLogger, params);
  59
  60 setTimeout(function () {
  61   tap.test('raw file', function (t) {
  62     fs.readFile(rawFile, {encoding: 'utf8'}, function (error, contents) {
  63       let lines;
  64
  65       lines = contents.trim().split('\n');
  66
  67       tap.equal(lines.length, params.length,
  68                'it should send all params to the file');
  69
  70       tap.equal(JSON.stringify(logObjectA), lines[0],
  71                'it should log the raw json object');
  72
  73       fs.unlink(rawFile, function () {
  74         t.end();
  75       });
  76     });
  77   });
  78 }, 10); // allow for flush
  79 /**
  80  * TEST: #log() - formatter
  81  */
  82
  83 formatterLogger.log.apply(formatterLogger, params);
  84
  85 setTimeout(function () {
  86   tap.test('formatted file', function (t) {
  87     fs.readFile(formatterFile, {encoding: 'utf8'}, function (error, contents) {
  88       let lines;
  89
  90       lines = contents.trim().split('\n');
  91
  92       tap.equal(lines.length, params.length,
  93                'it should send all params to the file');
  94
  95       tap.equal(formatterString, lines[0],
  96                'it should log the formatted object');
  97
  98       fs.unlink(formatterFile, function () {
  99         t.end();
 100       });
 101     });
 102   });
 103 }, 10);