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11 | var assert = require('assert'),
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12 | exec = require('child_process').exec,
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13 | fs = require('fs'),
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14 | path = require('path'),
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15 | vows = require('vows'),
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16 | winston = require('../../lib/winston'),
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17 | helpers = require('../helpers');
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18 |
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19 | var maxfilesTransport = new winston.transports.File({
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20 | timestamp: false,
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21 | json: false,
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22 | filename: path.join(__dirname, '..', 'fixtures', 'logs', 'testmaxfiles.log'),
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23 | maxsize: 4096,
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24 | maxFiles: 3
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25 | });
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26 |
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27 | vows.describe('winston/transports/file/maxfiles').addBatch({
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28 | "An instance of the File Transport": {
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29 | "when passed a valid filename": {
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30 | topic: maxfilesTransport,
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31 | "should be a valid transporter": function (transportTest) {
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32 | helpers.assertFile(transportTest);
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33 | },
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34 | "should set the maxFiles option correctly": function (transportTest) {
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35 | assert.isNumber(transportTest.maxFiles);
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36 | }
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37 | },
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38 | "when delete old test files": {
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39 | topic: function () {
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40 | exec('rm -rf ' + path.join(__dirname, '..', 'fixtures', 'logs', 'testmaxfiles*'), this.callback);
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41 | },
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42 | "and when passed more files than the maxFiles": {
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43 | topic: function () {
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44 | var that = this,
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45 | created = 0;
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46 |
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47 | function data(ch) {
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48 | return new Array(1018).join(String.fromCharCode(65 + ch));
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49 | };
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50 |
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51 | function logKbytes(kbytes, txt) {
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52 |
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54 |
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55 |
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56 |
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57 | for (var i = 0; i < kbytes; i++) {
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58 | maxfilesTransport.log('info', data(txt), null, function () { });
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59 | }
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60 | }
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61 |
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62 | maxfilesTransport.on('logged', function () {
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63 | if (++created === 6) {
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64 | return that.callback();
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65 | }
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66 |
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67 | logKbytes(4, created);
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68 | });
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69 |
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70 | logKbytes(4, created);
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71 | },
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72 | "should be only 3 files called 5.log, 4.log and 3.log": function () {
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73 | for (var num = 0; num < 6; num++) {
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74 | var file = !num ? 'testmaxfiles.log' : 'testmaxfiles' + num + '.log',
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75 | fullpath = path.join(__dirname, '..', 'fixtures', 'logs', file);
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76 |
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77 |
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78 | if (num >= 0 && num < 3) {
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79 | assert.throws(function () {
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80 | fs.statSync(fullpath);
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81 | }, Error);
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82 | } else {
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83 |
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84 | assert.doesNotThrow(function () {
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85 | fs.statSync(fullpath);
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86 | }, Error);
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87 | }
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88 | }
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89 | },
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90 | "should have the correct content": function () {
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91 | ['D', 'E', 'F'].forEach(function (name, inx) {
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92 | var counter = inx + 3,
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93 | logsDir = path.join(__dirname, '..', 'fixtures', 'logs'),
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94 | content = fs.readFileSync(path.join(logsDir, 'testmaxfiles' + counter + '.log'), 'utf-8');
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95 |
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96 | assert.lengthOf(content.match(new RegExp(name, 'g')), 4068);
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97 | });
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98 | }
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99 | }
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100 | }
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101 | }
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102 | }).export(module);
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