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- var assert = require('assert');
- var uuid = require('../');
- // Verify ordering of v1 ids created with explicit times
- var TIME = 1321644961388; // 2011-11-18 11:36:01.388-08:00
- function compare(name, ids) {
- test(name, function() {
- // avoid .map for older browsers
- for (var i=0 ; i<ids.length ; ++i) {
- ids[i] = ids[i].split('-').reverse().join('-');
- }
- ids = ids.sort();
- var sorted = ([].concat(ids)).sort();
- assert(sorted.toString() == ids.toString(), name + ' have expected order');
- });
- }
- // Verify ordering of v1 ids created using default behavior
- compare('uuids with current time', [
- uuid.v1(),
- uuid.v1(),
- uuid.v1(),
- uuid.v1(),
- uuid.v1()
- ]);
- // Verify ordering of v1 ids created with explicit times
- compare('uuids with time option', [
- uuid.v1({msecs: TIME - 10*3600*1000}),
- uuid.v1({msecs: TIME - 1}),
- uuid.v1({msecs: TIME}),
- uuid.v1({msecs: TIME + 1}),
- uuid.v1({msecs: TIME + 28*24*3600*1000})
- ]);
- test('msec', function() {
- assert(
- uuid.v1({msecs: TIME}) != uuid.v1({msecs: TIME}),
- 'IDs created at same msec are different'
- );
- });
- test('exception thrown when > 10k ids created in 1ms', function() {
- // Verify throw if too many ids created
- var thrown = false;
- try {
- uuid.v1({msecs: TIME, nsecs: 10000});
- } catch (e) {
- thrown = true;
- }
- assert(thrown, 'Exception thrown when > 10K ids created in 1 ms');
- });
- test('clock regression by msec', function() {
- // Verify clock regression bumps clockseq
- var uidt = uuid.v1({msecs: TIME});
- var uidtb = uuid.v1({msecs: TIME - 1});
- assert(
- parseInt(uidtb.split('-')[3], 16) - parseInt(uidt.split('-')[3], 16) === 1,
- 'Clock regression by msec increments the clockseq'
- );
- });
- test('clock regression by nsec', function() {
- // Verify clock regression bumps clockseq
- var uidtn = uuid.v1({msecs: TIME, nsecs: 10});
- var uidtnb = uuid.v1({msecs: TIME, nsecs: 9});
- assert(
- parseInt(uidtnb.split('-')[3], 16) - parseInt(uidtn.split('-')[3], 16) === 1,
- 'Clock regression by nsec increments the clockseq'
- );
- });
- test('explicit options product expected id', function() {
- // Verify explicit options produce expected id
- var id = uuid.v1({
- msecs: 1321651533573,
- nsecs: 5432,
- clockseq: 0x385c,
- node: [ 0x61, 0xcd, 0x3c, 0xbb, 0x32, 0x10 ]
- });
- assert(id == 'd9428888-122b-11e1-b85c-61cd3cbb3210', 'Explicit options produce expected id');
- });
- test('ids spanning 1ms boundary are 100ns apart', function() {
- // Verify adjacent ids across a msec boundary are 1 time unit apart
- var u0 = uuid.v1({msecs: TIME, nsecs: 9999});
- var u1 = uuid.v1({msecs: TIME + 1, nsecs: 0});
- var before = u0.split('-')[0], after = u1.split('-')[0];
- var dt = parseInt(after, 16) - parseInt(before, 16);
- assert(dt === 1, 'Ids spanning 1ms boundary are 100ns apart');
- });
- test('parse/unparse', function() {
- var id = '00112233445566778899aabbccddeeff';
- assert(uuid.unparse(uuid.parse(id.substr(0,10))) ==
- '00112233-4400-0000-0000-000000000000', 'Short parse');
- assert(uuid.unparse(uuid.parse('(this is the uuid -> ' + id + id)) ==
- '00112233-4455-6677-8899-aabbccddeeff', 'Dirty parse');
- });
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