initial refactoring to allow dependency injection
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16
test/log4js.json
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16
test/log4js.json
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{
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"appenders": [
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{
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"category": "tests",
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"type": "file",
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"filename": "tmp-tests.log",
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"layout": {
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"type": "messagePassThrough"
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}
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}
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],
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"levels": {
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"tests": "WARN"
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}
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}
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134
test/logging.js
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134
test/logging.js
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var vows = require('vows'),
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assert = require('assert');
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vows.describe('log4js').addBatch({
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'getLogger': {
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topic: function() {
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var log4js = require('../lib/log4js')();
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log4js.clearAppenders();
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var logger = log4js.getLogger('tests');
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logger.setLevel("DEBUG");
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return logger;
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},
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'should take a category and return a logger': function(logger) {
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assert.equal(logger.category, 'tests');
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assert.equal(logger.level.toString(), "DEBUG");
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assert.isFunction(logger.debug);
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assert.isFunction(logger.info);
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assert.isFunction(logger.warn);
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assert.isFunction(logger.error);
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assert.isFunction(logger.fatal);
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},
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'log events' : {
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topic: function(logger) {
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var events = [];
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logger.addListener("log", function (logEvent) { events.push(logEvent); });
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logger.debug("Debug event");
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logger.trace("Trace event 1");
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logger.trace("Trace event 2");
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logger.warn("Warning event");
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return events;
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},
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'should emit log events': function(events) {
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assert.equal(events[0].level.toString(), 'DEBUG');
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assert.equal(events[0].message, 'Debug event');
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assert.instanceOf(events[0].startTime, Date);
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},
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'should not emit events of a lower level': function(events) {
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assert.length(events, 2);
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assert.equal(events[1].level.toString(), 'WARN');
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}
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},
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},
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'fileAppender': {
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topic: function() {
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var appender, logmessages = [], thing = "thing", fakeFS = {
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openSync: function() {
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assert.equal(arguments[0], './tmp-tests.log');
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assert.equal(arguments[1], 'a');
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assert.equal(arguments[2], 0644);
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return thing;
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},
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write: function() {
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assert.equal(arguments[0], thing);
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assert.isString(arguments[1]);
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assert.isNull(arguments[2]);
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assert.equal(arguments[3], "utf8");
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logmessages.push(arguments[1]);
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}
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},
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log4js = require('../lib/log4js')(fakeFS);
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log4js.clearAppenders();
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appender = log4js.fileAppender('./tmp-tests.log', log4js.messagePassThroughLayout);
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log4js.addAppender(appender, 'file-test');
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var logger = log4js.getLogger('file-test');
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logger.debug("this is a test");
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return logmessages;
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},
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'should write log messages to file': function(logmessages) {
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assert.length(logmessages, 1);
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assert.equal(logmessages, "this is a test\n");
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}
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},
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'configure' : {
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topic: function() {
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var messages = {}, fakeFS = {
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openSync: function(file) {
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return file;
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},
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write: function(file, message) {
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if (!messages.hasOwnProperty(file)) {
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messages[file] = [];
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}
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messages[file].push(message);
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},
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readFileSync: function(file, encoding) {
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return require('fs').readFileSync(file, encoding);
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}
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},
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log4js = require('../lib/log4js')(fakeFS);
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return [ log4js, messages ];
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},
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'should load appender configuration from a json file': function(args) {
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var log4js = args[0], messages = args[1];
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delete messages['tmp-tests.log'];
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log4js.clearAppenders();
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//this config file defines one file appender (to ./tmp-tests.log)
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//and sets the log level for "tests" to WARN
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log4js.configure('test/log4js.json');
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var logger = log4js.getLogger("tests");
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logger.info('this should not be written to the file');
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logger.warn('this should be written to the file');
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assert.length(messages['tmp-tests.log'], 1);
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assert.equal(messages['tmp-tests.log'][0], 'this should be written to the file\n');
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},
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'should handle logLevelFilter configuration': function(args) {
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var log4js = args[0], messages = args[1];
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delete messages['tmp-tests.log'];
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delete messages['tmp-tests-warnings.log'];
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log4js.clearAppenders();
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log4js.configure('test/with-logLevelFilter.json');
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var logger = log4js.getLogger("tests");
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logger.info('main');
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logger.error('both');
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logger.warn('both');
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logger.debug('main');
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assert.length(messages['tmp-tests.log'], 4);
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assert.length(messages['tmp-tests-warnings.log'], 2);
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assert.deepEqual(messages['tmp-tests.log'], ['main\n','both\n','both\n','main\n']);
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assert.deepEqual(messages['tmp-tests-warnings.log'], ['both\n','both\n']);
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}
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}
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}).export(module);
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28
test/with-logLevelFilter.json
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28
test/with-logLevelFilter.json
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{
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"appenders": [
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{
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"category": "tests",
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"type": "logLevelFilter",
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"level": "WARN",
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"appender": {
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"type": "file",
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"filename": "tmp-tests-warnings.log",
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"layout": {
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"type": "messagePassThrough"
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}
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}
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},
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{
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"category": "tests",
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"type": "file",
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"filename": "tmp-tests.log",
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"layout": {
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"type": "messagePassThrough"
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}
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}
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],
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"levels": {
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"tests": "DEBUG"
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}
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}
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