log4js-node/test/fileAppender-test.js

420 lines
14 KiB
JavaScript

"use strict";
var vows = require('vows')
, fs = require('fs')
, path = require('path')
, sandbox = require('sandboxed-module')
, log4js = require('../lib/log4js')
, assert = require('assert')
, zlib = require('zlib')
, EOL = require('os').EOL || '\n';
log4js.clearAppenders();
function remove(filename) {
try {
fs.unlinkSync(filename);
} catch (e) {
//doesn't really matter if it failed
}
}
vows.describe('log4js fileAppender').addBatch({
'adding multiple fileAppenders': {
topic: function () {
var listenersCount = process.listeners('exit').length
, logger = log4js.getLogger('default-settings')
, count = 5, logfile;
while (count--) {
logfile = path.join(__dirname, '/fa-default-test' + count + '.log');
log4js.addAppender(require('../lib/appenders/file').appender(logfile), 'default-settings');
}
return listenersCount;
},
'does not add more than one `exit` listeners': function (initialCount) {
assert.ok(process.listeners('exit').length <= initialCount + 1);
}
},
'exit listener': {
topic: function() {
var exitListener
, openedFiles = []
, fileAppender = sandbox.require(
'../lib/appenders/file',
{
globals: {
process: {
on: function(evt, listener) {
exitListener = listener;
}
}
},
requires: {
'../streams': {
RollingFileStream: function(filename) {
openedFiles.push(filename);
this.end = function() {
openedFiles.shift();
};
this.on = function() {};
}
}
}
}
);
for (var i=0; i < 5; i += 1) {
fileAppender.appender('test' + i, null, 100);
}
assert.isNotEmpty(openedFiles);
exitListener();
return openedFiles;
},
'should close all open files': function(openedFiles) {
assert.isEmpty(openedFiles);
}
},
'with default fileAppender settings': {
topic: function() {
var that = this
, testFile = path.join(__dirname, '/fa-default-test.log')
, logger = log4js.getLogger('default-settings');
remove(testFile);
log4js.clearAppenders();
log4js.addAppender(require('../lib/appenders/file').appender(testFile), 'default-settings');
logger.info("This should be in the file.");
setTimeout(function() {
fs.readFile(testFile, "utf8", that.callback);
}, 100);
},
'should write log messages to the file': function (err, fileContents) {
assert.include(fileContents, "This should be in the file." + EOL);
},
'log messages should be in the basic layout format': function(err, fileContents) {
assert.match(
fileContents,
/\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] default-settings - /
);
}
},
'fileAppender subcategories': {
topic: function() {
var that = this;
log4js.clearAppenders();
function addAppender(cat) {
var testFile = path.join(__dirname, '/fa-subcategories-test-'+cat.join('-').replace(/\./g, "_")+'.log');
remove(testFile);
log4js.addAppender(require('../lib/appenders/file').appender(testFile), cat);
return testFile;
}
var file_sub1 = addAppender([ 'sub1']);
var file_sub1_sub12$sub1_sub13 = addAppender([ 'sub1.sub12', 'sub1.sub13' ]);
var file_sub1_sub12 = addAppender([ 'sub1.sub12' ]);
var logger_sub1_sub12_sub123 = log4js.getLogger('sub1.sub12.sub123');
var logger_sub1_sub13_sub133 = log4js.getLogger('sub1.sub13.sub133');
var logger_sub1_sub14 = log4js.getLogger('sub1.sub14');
var logger_sub2 = log4js.getLogger('sub2');
logger_sub1_sub12_sub123.info('sub1_sub12_sub123');
logger_sub1_sub13_sub133.info('sub1_sub13_sub133');
logger_sub1_sub14.info('sub1_sub14');
logger_sub2.info('sub2');
setTimeout(function() {
that.callback(null, {
file_sub1: fs.readFileSync(file_sub1).toString(),
file_sub1_sub12$sub1_sub13: fs.readFileSync(file_sub1_sub12$sub1_sub13).toString(),
file_sub1_sub12: fs.readFileSync(file_sub1_sub12).toString()
});
}, 3000);
},
'check file contents': function (err, fileContents) {
// everything but category 'sub2'
assert.match(fileContents.file_sub1, /^(\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] (sub1.sub12.sub123 - sub1_sub12_sub123|sub1.sub13.sub133 - sub1_sub13_sub133|sub1.sub14 - sub1_sub14)[\s\S]){3}$/);
assert.ok(fileContents.file_sub1.match(/sub123/) && fileContents.file_sub1.match(/sub133/) && fileContents.file_sub1.match(/sub14/));
assert.ok(!fileContents.file_sub1.match(/sub2/));
// only catgories starting with 'sub1.sub12' and 'sub1.sub13'
assert.match(fileContents.file_sub1_sub12$sub1_sub13, /^(\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] (sub1.sub12.sub123 - sub1_sub12_sub123|sub1.sub13.sub133 - sub1_sub13_sub133)[\s\S]){2}$/);
assert.ok(fileContents.file_sub1_sub12$sub1_sub13.match(/sub123/) && fileContents.file_sub1_sub12$sub1_sub13.match(/sub133/));
assert.ok(!fileContents.file_sub1_sub12$sub1_sub13.match(/sub14|sub2/));
// only catgories starting with 'sub1.sub12'
assert.match(fileContents.file_sub1_sub12, /^(\[\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}\.\d{3}\] \[INFO\] (sub1.sub12.sub123 - sub1_sub12_sub123)[\s\S]){1}$/);
assert.ok(!fileContents.file_sub1_sub12.match(/sub14|sub2|sub13/));
}
},
'with a max file size and no backups': {
topic: function() {
var testFile = path.join(__dirname, '/fa-maxFileSize-test.log')
, logger = log4js.getLogger('max-file-size')
, that = this;
remove(testFile);
remove(testFile + '.1');
//log file of 100 bytes maximum, no backups
log4js.clearAppenders();
log4js.addAppender(
require('../lib/appenders/file').appender(testFile, log4js.layouts.basicLayout, 100, 0),
'max-file-size'
);
logger.info("This is the first log message.");
logger.info("This is an intermediate log message.");
logger.info("This is the second log message.");
//wait for the file system to catch up
setTimeout(function() {
fs.readFile(testFile, "utf8", that.callback);
}, 100);
},
'log file should only contain the second message': function(err, fileContents) {
assert.include(fileContents, "This is the second log message.");
assert.equal(fileContents.indexOf("This is the first log message."), -1);
},
'the number of files': {
topic: function() {
fs.readdir(__dirname, this.callback);
},
'starting with the test file name should be two': function(err, files) {
//there will always be one backup if you've specified a max log size
var logFiles = files.filter(
function(file) { return file.indexOf('fa-maxFileSize-test.log') > -1; }
);
assert.equal(logFiles.length, 2);
}
}
},
'with a max file size and 2 backups': {
topic: function() {
var testFile = path.join(__dirname, '/fa-maxFileSize-with-backups-test.log')
, logger = log4js.getLogger('max-file-size-backups');
remove(testFile);
remove(testFile+'.1');
remove(testFile+'.2');
//log file of 50 bytes maximum, 2 backups
log4js.clearAppenders();
log4js.addAppender(
require('../lib/appenders/file').appender(testFile, log4js.layouts.basicLayout, 50, 2),
'max-file-size-backups'
);
logger.info("This is the first log message.");
logger.info("This is the second log message.");
logger.info("This is the third log message.");
logger.info("This is the fourth log message.");
var that = this;
//give the system a chance to open the stream
setTimeout(function() {
fs.readdir(__dirname, function(err, files) {
if (files) {
that.callback(null, files.sort());
} else {
that.callback(err, files);
}
});
}, 200);
},
'the log files': {
topic: function(files) {
var logFiles = files.filter(
function(file) { return file.indexOf('fa-maxFileSize-with-backups-test.log') > -1; }
);
return logFiles;
},
'should be 3': function (files) {
assert.equal(files.length, 3);
},
'should be named in sequence': function (files) {
assert.deepEqual(files, [
'fa-maxFileSize-with-backups-test.log',
'fa-maxFileSize-with-backups-test.log.1',
'fa-maxFileSize-with-backups-test.log.2'
]);
},
'and the contents of the first file': {
topic: function(logFiles) {
fs.readFile(path.join(__dirname, logFiles[0]), "utf8", this.callback);
},
'should be the last log message': function(contents) {
assert.include(contents, 'This is the fourth log message.');
}
},
'and the contents of the second file': {
topic: function(logFiles) {
fs.readFile(path.join(__dirname, logFiles[1]), "utf8", this.callback);
},
'should be the third log message': function(contents) {
assert.include(contents, 'This is the third log message.');
}
},
'and the contents of the third file': {
topic: function(logFiles) {
fs.readFile(path.join(__dirname, logFiles[2]), "utf8", this.callback);
},
'should be the second log message': function(contents) {
assert.include(contents, 'This is the second log message.');
}
}
}
},
'with a max file size and 2 compressed backups': {
topic: function() {
var testFile = path.join(__dirname, '/fa-maxFileSize-with-backups-compressed-test.log')
, logger = log4js.getLogger('max-file-size-backups');
remove(testFile);
remove(testFile+'.1.gz');
remove(testFile+'.2.gz');
//log file of 50 bytes maximum, 2 backups
log4js.clearAppenders();
log4js.addAppender(
require('../lib/appenders/file').appender(testFile, log4js.layouts.basicLayout, 50, 2, true),
'max-file-size-backups'
);
logger.info("This is the first log message.");
logger.info("This is the second log message.");
logger.info("This is the third log message.");
logger.info("This is the fourth log message.");
var that = this;
//give the system a chance to open the stream
setTimeout(function() {
fs.readdir(__dirname, function(err, files) {
if (files) {
that.callback(null, files.sort());
} else {
that.callback(err, files);
}
});
}, 1000);
},
'the log files': {
topic: function(files) {
var logFiles = files.filter(
function(file) { return file.indexOf('fa-maxFileSize-with-backups-compressed-test.log') > -1; }
);
return logFiles;
},
'should be 3': function (files) {
assert.equal(files.length, 3);
},
'should be named in sequence': function (files) {
assert.deepEqual(files, [
'fa-maxFileSize-with-backups-compressed-test.log',
'fa-maxFileSize-with-backups-compressed-test.log.1.gz',
'fa-maxFileSize-with-backups-compressed-test.log.2.gz'
]);
},
'and the contents of the first file': {
topic: function(logFiles) {
fs.readFile(path.join(__dirname, logFiles[0]), "utf8", this.callback);
},
'should be the last log message': function(contents) {
assert.include(contents, 'This is the fourth log message.');
}
},
'and the contents of the second file': {
topic: function(logFiles) {
zlib.gunzip(fs.readFileSync(path.join(__dirname, logFiles[1])), this.callback);
},
'should be the third log message': function(contents) {
assert.include(contents.toString('utf8'), 'This is the third log message.');
}
},
'and the contents of the third file': {
topic: function(logFiles) {
zlib.gunzip(fs.readFileSync(path.join(__dirname, logFiles[2])), this.callback);
},
'should be the second log message': function(contents) {
assert.include(contents.toString('utf8'), 'This is the second log message.');
}
}
}
}
}).addBatch({
'configure' : {
'with fileAppender': {
topic: function() {
var log4js = require('../lib/log4js')
, logger;
//this config file defines one file appender (to ./tmp-tests.log)
//and sets the log level for "tests" to WARN
log4js.configure('./test/log4js.json');
logger = log4js.getLogger('tests');
logger.info('this should not be written to the file');
logger.warn('this should be written to the file');
fs.readFile('tmp-tests.log', 'utf8', this.callback);
},
'should load appender configuration from a json file': function (err, contents) {
assert.include(contents, 'this should be written to the file' + EOL);
assert.equal(contents.indexOf('this should not be written to the file'), -1);
}
}
}
}).addBatch({
'when underlying stream errors': {
topic: function() {
var consoleArgs
, errorHandler
, fileAppender = sandbox.require(
'../lib/appenders/file',
{
globals: {
console: {
error: function() {
consoleArgs = Array.prototype.slice.call(arguments);
}
}
},
requires: {
'../streams': {
RollingFileStream: function(filename) {
this.end = function() {};
this.on = function(evt, cb) {
if (evt === 'error') {
errorHandler = cb;
}
};
}
}
}
}
);
fileAppender.appender('test1.log', null, 100);
errorHandler({ error: 'aargh' });
return consoleArgs;
},
'should log the error to console.error': function(consoleArgs) {
assert.isNotEmpty(consoleArgs);
assert.equal(consoleArgs[0], 'log4js.fileAppender - Writing to file %s, error happened ');
assert.equal(consoleArgs[1], 'test1.log');
assert.equal(consoleArgs[2].error, 'aargh');
}
}
}).export(module);