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node_modules/sntp/test/index.js
Maintainability
75.77
Lines of code
432
Difficulty
48.00
Estimated Errors
5.01
Function weight
By Complexity
By SLOC
// Load modules var Dns = require('dns'); var Dgram = require('dgram'); var Lab = require('lab'); var Sntp = require('../lib'); // Declare internals var internals = {}; // Test shortcuts var lab = exports.lab = Lab.script(); var before = lab.before; var after = lab.after; var describe = lab.experiment; var it = lab.test; var expect = Lab.expect; describe('SNTP', function () { describe('#time', function () { it('returns consistent result over multiple tries', function (done) { Sntp.time(function (err, time) { expect(err).to.not.exist; expect(time).to.exist; var t1 = time.t; Sntp.time(function (err, time) { expect(err).to.not.exist; expect(time).to.exist; var t2 = time.t; expect(Math.abs(t1 - t2)).is.below(200); done(); }); }); }); it('resolves reference IP', function (done) { Sntp.time({ host: 'ntp.exnet.com', resolveReference: true }, function (err, time) { expect(err).to.not.exist; expect(time).to.exist; expect(time.referenceHost).to.exist; done(); }); }); it('times out on no response', function (done) { Sntp.time({ port: 124, timeout: 100 }, function (err, time) { expect(err).to.exist; expect(time).to.not.exist; expect(err.message).to.equal('Timeout'); done(); }); }); it('errors on error event', { parallel: false }, function (done) { var orig = Dgram.createSocket; Dgram.createSocket = function (type) { Dgram.createSocket = orig; var socket = Dgram.createSocket(type); setImmediate(function () { socket.emit('error', new Error('Fake')) }); return socket; }; Sntp.time(function (err, time) { expect(err).to.exist; expect(time).to.not.exist; expect(err.message).to.equal('Fake'); done(); }); }); it('errors on incorrect sent size', { parallel: false }, function (done) { var orig = Dgram.Socket.prototype.send; Dgram.Socket.prototype.send = function (buf, offset, length, port, address, callback) { Dgram.Socket.prototype.send = orig; return callback(null, 40); }; Sntp.time(function (err, time) { expect(err).to.exist; expect(time).to.not.exist; expect(err.message).to.equal('Could not send entire message'); done(); }); }); it('times out on invalid host', function (done) { Sntp.time({ host: 'error', timeout: 10000 }, function (err, time) { expect(err).to.exist; expect(time).to.not.exist; expect(err.message).to.contain('getaddrinfo'); done(); }); }); it('fails on bad response buffer size', function (done) { var server = Dgram.createSocket('udp4'); server.on('message', function (message, remote) { var message = new Buffer(10); server.send(message, 0, message.length, remote.port, remote.address, function (err, bytes) { server.close(); }); }); server.bind(49123); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(err.message).to.equal('Invalid server response'); done(); }); }); var messup = function (bytes) { var server = Dgram.createSocket('udp4'); server.on('message', function (message, remote) { var message = new Buffer([ 0x24, 0x01, 0x00, 0xe3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x43, 0x54, 0x53, 0xd4, 0xa8, 0x2d, 0xc7, 0x1c, 0x5d, 0x49, 0x1b, 0xd4, 0xa8, 0x2d, 0xe6, 0x67, 0xef, 0x9d, 0xb2, 0xd4, 0xa8, 0x2d, 0xe6, 0x71, 0xed, 0xb5, 0xfb, 0xd4, 0xa8, 0x2d, 0xe6, 0x71, 0xee, 0x6c, 0xc5 ]); for (var i = 0, il = bytes.length; i < il; ++i) { message[bytes[i][0]] = bytes[i][1]; } server.send(message, 0, message.length, remote.port, remote.address, function (err, bytes) { server.close(); }); }); server.bind(49123); }; it('fails on bad version', function (done) { messup([[0, (0 << 6) + (3 << 3) + (4 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.version).to.equal(3); expect(err.message).to.equal('Invalid server response'); done(); }); }); it('fails on bad originateTimestamp', function (done) { messup([[24, 0x83], [25, 0xaa], [26, 0x7e], [27, 0x80], [28, 0], [29, 0], [30, 0], [31, 0]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(err.message).to.equal('Invalid server response'); done(); }); }); it('fails on bad receiveTimestamp', function (done) { messup([[32, 0x83], [33, 0xaa], [34, 0x7e], [35, 0x80], [36, 0], [37, 0], [38, 0], [39, 0]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(err.message).to.equal('Invalid server response'); done(); }); }); it('fails on bad originate timestamp and alarm li', function (done) { messup([[0, (3 << 6) + (4 << 3) + (4 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(err.message).to.equal('Wrong originate timestamp'); expect(time.leapIndicator).to.equal('alarm'); done(); }); }); it('returns time with death stratum and last61 li', function (done) { messup([[0, (1 << 6) + (4 << 3) + (4 << 0)], [1, 0]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(time.stratum).to.equal('death'); expect(time.leapIndicator).to.equal('last-minute-61'); done(); }); }); it('returns time with reserved stratum and last59 li', function (done) { messup([[0, (2 << 6) + (4 << 3) + (4 << 0)], [1, 0x1f]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(time.stratum).to.equal('reserved'); expect(time.leapIndicator).to.equal('last-minute-59'); done(); }); }); it('fails on bad mode (symmetric-active)', function (done) { messup([[0, (0 << 6) + (4 << 3) + (1 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.mode).to.equal('symmetric-active'); done(); }); }); it('fails on bad mode (symmetric-passive)', function (done) { messup([[0, (0 << 6) + (4 << 3) + (2 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.mode).to.equal('symmetric-passive'); done(); }); }); it('fails on bad mode (client)', function (done) { messup([[0, (0 << 6) + (4 << 3) + (3 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.mode).to.equal('client'); done(); }); }); it('fails on bad mode (broadcast)', function (done) { messup([[0, (0 << 6) + (4 << 3) + (5 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.mode).to.equal('broadcast'); done(); }); }); it('fails on bad mode (reserved)', function (done) { messup([[0, (0 << 6) + (4 << 3) + (6 << 0)]]); Sntp.time({ host: 'localhost', port: 49123 }, function (err, time) { expect(err).to.exist; expect(time.mode).to.equal('reserved'); done(); }); }); }); describe('#offset', function () { it('gets the current offset', function (done) { Sntp.offset(function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(0); done(); }); }); it('gets the current offset from cache', function (done) { Sntp.offset(function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(0); var offset1 = offset; Sntp.offset({}, function (err, offset) { expect(err).to.not.exist; expect(offset).to.equal(offset1); done(); }); }); }); it('gets the new offset on different server', function (done) { Sntp.offset(function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(0); var offset1 = offset; Sntp.offset({ host: 'nist1-sj.ustiming.org' }, function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(offset1); done(); }); }); }); it('gets the new offset on different server', function (done) { Sntp.offset(function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(0); var offset1 = offset; Sntp.offset({ port: 123 }, function (err, offset) { expect(err).to.not.exist; expect(offset).to.not.equal(offset1); done(); }); }); }); it('fails getting the current offset on invalid server', function (done) { Sntp.offset({ host: 'error' }, function (err, offset) { expect(err).to.exist; expect(offset).to.equal(0); done(); }); }); }); describe('#now', function () { it('starts auto-sync, gets now, then stops', function (done) { Sntp.stop(); var before = Sntp.now(); expect(before).to.equal(Date.now()); Sntp.start(function () { var now = Sntp.now(); expect(now).to.not.equal(Date.now()); Sntp.stop(); done(); }); }); it('starts twice', function (done) { Sntp.start(function () { Sntp.start(function () { var now = Sntp.now(); expect(now).to.not.equal(Date.now()); Sntp.stop(); done(); }); }); }); it('starts auto-sync, gets now, waits, gets again after timeout', function (done) { Sntp.stop(); var before = Sntp.now(); expect(before).to.equal(Date.now()); Sntp.start({ clockSyncRefresh: 100 }, function () { var now = Sntp.now(); expect(now).to.not.equal(Date.now()); expect(now).to.equal(Sntp.now()); setTimeout(function () { expect(Sntp.now()).to.not.equal(now); Sntp.stop(); done(); }, 110); }); }); }); });