log4js-node/test/smtpAppender.js

var vows = require('vows'),
	assert = require('assert'),
	log4js = require('../lib/log4js'),
	sandbox = require('sandboxed-module');

function setupLogging(category, options) {
	var msgs = [];
	
	var fakeMailer = {
		send_mail: function (msg, callback) {
			msgs.push(msg);
			callback(null, true);
		}
	};

	var smtpModule = sandbox.require('../lib/appenders/smtp', {
		requires: {
			'nodemailer': fakeMailer
		}
	});

	log4js.addAppender(smtpModule.configure(options), category);
	
	return {
		logger: log4js.getLogger(category),
		mailer: fakeMailer,
		results: msgs
	};
}

function checkMessages (result, sender, subject) {
	for (var i = 0; i < result.results.length; ++i) {
		assert.equal(result.results[i].sender, sender ? sender : result.mailer.SMTP.user);
		assert.equal(result.results[i].to, 'recipient@domain.com');
		assert.equal(result.results[i].subject, subject ? subject : 'Log event #' + (i+1));
		assert.ok(new RegExp('.+Log event #' + (i+1) + '\n$').test(result.results[i].body));
	}
}

log4js.clearAppenders();
vows.describe('log4js smtpAppender').addBatch({
	'minimal config': {
		topic: function() {
			var setup = setupLogging('minimal config', {
				recipients: 'recipient@domain.com',
				smtp: {
					port: 25,
					user: 'user@domain.com'
				}
			});
			setup.logger.info('Log event #1');
			return setup;
		},
		'mailer should be configured properly': function (result) {
			assert.ok(result.mailer.SMTP);
			assert.equal(result.mailer.SMTP.port, 25);
			assert.equal(result.mailer.SMTP.user, 'user@domain.com');
		},
		'there should be one message only': function (result) {
			assert.equal(result.results.length, 1);
		},
		'message should contain proper data': function (result) {
			checkMessages(result);
		}
	},
	'fancy config': {
		topic: function() {
			var setup = setupLogging('fancy config', {
				recipients: 'recipient@domain.com',
				sender: 'sender@domain.com',
				subject: 'This is subject',
				smtp: {
					port: 25,
					user: 'user@domain.com'
				}
			});
			setup.logger.info('Log event #1');
			return setup;
		},
		'mailer should be configured properly': function (result) {
			assert.ok(result.mailer.SMTP);
			assert.equal(result.mailer.SMTP.port, 25);
			assert.equal(result.mailer.SMTP.user, 'user@domain.com');
		},
		'there should be one message only': function (result) {
			assert.equal(result.results.length, 1);
		},
		'message should contain proper data': function (result) {
			checkMessages(result, 'sender@domain.com', 'This is subject');
		}
	},
	'separate email for each event': {
		topic: function() {
			var self = this;
			var setup = setupLogging('separate email for each event', {
				recipients: 'recipient@domain.com',
				smtp: {
					port: 25,
					user: 'user@domain.com'
				}
			});
			setTimeout(function () {
				setup.logger.info('Log event #1');
			}, 0);
			setTimeout(function () {
				setup.logger.info('Log event #2');
			}, 500);
			setTimeout(function () {
				setup.logger.info('Log event #3');
			}, 1050);
			setTimeout(function () {
				self.callback(null, setup);
			}, 2100);
		},
		'there should be three messages': function (result) {
			assert.equal(result.results.length, 3);
		},
		'messages should contain proper data': function (result) {
			checkMessages(result);
		}
	},
	'multiple events in one email': {
		topic: function() {
			var self = this;
			var setup = setupLogging('multiple events in one email', {
				recipients: 'recipient@domain.com',
				sendInterval: 1,
				smtp: {
					port: 25,
					user: 'user@domain.com'
				}
			});
			setTimeout(function () {
				setup.logger.info('Log event #1');
			}, 0);
			setTimeout(function () {
				setup.logger.info('Log event #2');
			}, 500);
			setTimeout(function () {
				setup.logger.info('Log event #3');
			}, 1050);
			setTimeout(function () {
				self.callback(null, setup);
			}, 2100);
		},
		'there should be two messages': function (result) {
			assert.equal(result.results.length, 2);
		},
		'messages should contain proper data': function (result) {
			assert.equal(result.results[0].sender, result.mailer.SMTP.user);
			assert.equal(result.results[0].to, 'recipient@domain.com');
			assert.equal(result.results[0].subject, 'Log event #1');
			assert.equal(result.results[0].body.match(new RegExp('.+Log event #[1-2]$', 'gm')).length, 2);

			assert.equal(result.results[1].sender, result.mailer.SMTP.user);
			assert.equal(result.results[1].to, 'recipient@domain.com');
			assert.equal(result.results[1].subject, 'Log event #3');
			assert.ok(new RegExp('.+Log event #3\n$').test(result.results[1].body));
		}
	}

}).export(module);