102 lines
3.4 KiB
JavaScript
102 lines
3.4 KiB
JavaScript
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/*
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* file-maxfiles-test.js: Tests for instances of the File transport setting the max file size,
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* and setting a number for max files created.
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* maxSize * maxFiles = total storage used by winston.
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*
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* (C) 2011 Daniel Aristizabal
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* MIT LICENSE
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*
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*/
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var assert = require('assert'),
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exec = require('child_process').exec,
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fs = require('fs'),
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path = require('path'),
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vows = require('vows'),
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winston = require('../../lib/winston'),
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helpers = require('../helpers');
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var maxfilesTransport = new winston.transports.File({
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timestamp: false,
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json: false,
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filename: path.join(__dirname, '..', 'fixtures', 'logs', 'testmaxfiles.log'),
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maxsize: 4096,
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maxFiles: 3
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});
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vows.describe('winston/transports/file/maxfiles').addBatch({
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"An instance of the File Transport": {
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"when passed a valid filename": {
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topic: maxfilesTransport,
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"should be a valid transporter": function (transportTest) {
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helpers.assertFile(transportTest);
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},
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"should set the maxFiles option correctly": function (transportTest) {
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assert.isNumber(transportTest.maxFiles);
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}
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},
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"when delete old test files": {
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topic: function () {
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exec('rm -rf ' + path.join(__dirname, '..', 'fixtures', 'logs', 'testmaxfiles*'), this.callback);
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},
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"and when passed more files than the maxFiles": {
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topic: function () {
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var that = this,
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created = 0;
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function data(ch) {
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return new Array(1018).join(String.fromCharCode(65 + ch));
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};
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function logKbytes(kbytes, txt) {
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//
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// With no timestamp and at the info level,
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// winston adds exactly 7 characters:
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// [info](4)[ :](2)[\n](1)
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//
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for (var i = 0; i < kbytes; i++) {
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maxfilesTransport.log('info', data(txt), null, function () { });
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}
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}
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maxfilesTransport.on('logged', function () {
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if (++created === 6) {
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return that.callback();
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}
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logKbytes(4, created);
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});
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logKbytes(4, created);
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},
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"should be only 3 files called 5.log, 4.log and 3.log": function () {
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for (var num = 0; num < 6; num++) {
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var file = !num ? 'testmaxfiles.log' : 'testmaxfiles' + num + '.log',
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fullpath = path.join(__dirname, '..', 'fixtures', 'logs', file);
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// There should be no files with that name
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if (num >= 0 && num < 3) {
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return assert.throws(function () {
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fs.statSync(file);
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}, Error);
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}
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// The other files should be exist
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assert.doesNotThrow(function () {
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fs.statSync(file);
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}, Error);
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}
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},
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"should have the correct content": function () {
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['D', 'E', 'F'].forEach(function (name, inx) {
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var counter = inx + 3,
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logsDir = path.join(__dirname, '..', 'fixtures', 'logs'),
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content = fs.readFileSync(path.join(logsDir, 'testmaxfiles' + counter + '.log'), 'utf-8');
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// The content minus the 7 characters added by winston
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assert.lengthOf(content.match(new RegExp(name, 'g')), 4068);
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});
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}
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}
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}
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}
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}).export(module);
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