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