file-archive-test.js
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/*
* file-archive-test.js: Tests for instances of the File transport setting the archive option,
*
* (C) 2015 Nimrod Becker
* MIT LICENSE
*
*/
var assert = require('assert'),
exec = require('child_process').exec,
fs = require('fs'),
path = require('path'),
vows = require('vows'),
winston = require('../../lib/winston'),
helpers = require('../helpers');
var archiveTransport = new winston.transports.File({
timestamp: true,
json: false,
zippedArchive: true,
tailable: true,
filename: 'testarchive.log',
dirname: path.join(__dirname, '..', 'fixtures', 'logs'),
maxsize: 4096,
maxFiles: 3
});
function data(ch) {
return new Array(1018).join(String.fromCharCode(65 + ch));
}
function logKbytes(kbytes, txt) {
//
// With no timestamp and at the info level,
// winston adds exactly 7 characters:
// [info](4)[ :](2)[\n](1)
//
for (var i = 0; i < kbytes; i++) {
archiveTransport.log('info', data(txt), null, function() {});
}
}
vows.describe('winston/transports/file/zippedArchive').addBatch({
"An instance of the File Transport with tailable true": {
"when created archived files are rolled": {
topic: function() {
var that = this,
created = 0;
archiveTransport.on('logged', function() {
if (++created === 6) {
return that.callback();
}
logKbytes(4, created);
});
logKbytes(4, created);
},
"should be only 3 files called testarchive.log, testarchive1.log.gz and testarchive2.log.gz": function() {
//Give the archive a little time to settle
// setTimeout(function() {
for (var num = 0; num < 6; num++) {
var file = !num ? 'testarchive.log' : 'testarchive' + num + '.log.gz',
fullpath = path.join(__dirname, '..', 'fixtures', 'logs', file);
// There should be no files with that name
if (num >= 3) {
assert.throws(function() {
fs.statSync(fullpath);
}, Error);
} else {
// The other files should exist
assert.doesNotThrow(function() {
fs.statSync(fullpath);
}, Error);
}
}
//},5000);
},
}
},
}).export(module);