source: imaps-frontend/node_modules/uuid/dist/cjs/test/v7.test.js@ 79a0317

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Last change on this file since 79a0317 was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 3 days ago

F4 Finalna Verzija
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1"use strict";
2Object.defineProperty(exports, "__esModule", { value: true });
3const assert = require("assert");
4const node_test_1 = require("node:test");
5const parse_js_1 = require("../parse.js");
6const stringify_js_1 = require("../stringify.js");
7const v7_js_1 = require("../v7.js");
8const RFC_V7 = '017f22e2-79b0-7cc3-98c4-dc0c0c07398f';
9const RFC_V7_BYTES = (0, parse_js_1.default)('017f22e2-79b0-7cc3-98c4-dc0c0c07398f');
10const RFC_MSECS = 0x17f22e279b0;
11const RFC_SEQ = (0x0cc3 << 20) | (0x98c4dc >> 2);
12const RFC_RANDOM = Uint8Array.of(0x10, 0x91, 0x56, 0xbe, 0xc4, 0xfb, 0x0c, 0xc3, 0x18, 0xc4, 0x6c, 0x0c, 0x0c, 0x07, 0x39, 0x8f);
13(0, node_test_1.describe)('v7', () => {
14 (0, node_test_1.default)('subsequent UUIDs are different', () => {
15 const id1 = (0, v7_js_1.default)();
16 const id2 = (0, v7_js_1.default)();
17 assert.ok(id1 !== id2);
18 });
19 (0, node_test_1.default)('explicit options.random and options.msecs produces expected result', () => {
20 const id = (0, v7_js_1.default)({
21 random: RFC_RANDOM,
22 msecs: RFC_MSECS,
23 seq: RFC_SEQ,
24 });
25 assert.strictEqual(id, RFC_V7);
26 });
27 (0, node_test_1.default)('explicit options.rng produces expected result', () => {
28 const id = (0, v7_js_1.default)({
29 rng: () => RFC_RANDOM,
30 msecs: RFC_MSECS,
31 seq: RFC_SEQ,
32 });
33 assert.strictEqual(id, RFC_V7);
34 });
35 (0, node_test_1.default)('explicit options.msecs produces expected result', () => {
36 const id = (0, v7_js_1.default)({
37 msecs: RFC_MSECS,
38 });
39 assert.strictEqual(id.indexOf('017f22e2'), 0);
40 });
41 (0, node_test_1.default)('fills one UUID into a buffer as expected', () => {
42 const buffer = new Uint8Array(16);
43 const result = (0, v7_js_1.default)({
44 random: RFC_RANDOM,
45 msecs: RFC_MSECS,
46 seq: RFC_SEQ,
47 }, buffer);
48 (0, stringify_js_1.default)(buffer);
49 assert.deepEqual(buffer, RFC_V7_BYTES);
50 assert.strictEqual(buffer, result);
51 });
52 (0, node_test_1.default)('fills two UUIDs into a buffer as expected', () => {
53 const buffer = new Uint8Array(32);
54 (0, v7_js_1.default)({
55 random: RFC_RANDOM,
56 msecs: RFC_MSECS,
57 seq: RFC_SEQ,
58 }, buffer, 0);
59 (0, v7_js_1.default)({
60 random: RFC_RANDOM,
61 msecs: RFC_MSECS,
62 seq: RFC_SEQ,
63 }, buffer, 16);
64 const expected = new Uint8Array(32);
65 expected.set(RFC_V7_BYTES);
66 expected.set(RFC_V7_BYTES, 16);
67 assert.deepEqual(buffer, expected);
68 });
69 (0, node_test_1.default)('lexicographical sorting is preserved', () => {
70 let id;
71 let prior;
72 let msecs = RFC_MSECS;
73 for (let i = 0; i < 20000; ++i) {
74 if (i % 1500 === 0) {
75 msecs += 1;
76 }
77 id = (0, v7_js_1.default)({ msecs, seq: i });
78 if (prior !== undefined) {
79 assert.ok(prior < id, `${prior} < ${id}`);
80 }
81 prior = id;
82 }
83 });
84 (0, node_test_1.default)('can supply seq', () => {
85 let seq = 0x12345;
86 let uuid = (0, v7_js_1.default)({
87 msecs: RFC_MSECS,
88 seq,
89 });
90 assert.strictEqual(uuid.substr(0, 25), '017f22e2-79b0-7000-848d-1');
91 seq = 0x6fffffff;
92 uuid = (0, v7_js_1.default)({
93 msecs: RFC_MSECS,
94 seq,
95 });
96 assert.strictEqual(uuid.substring(0, 25), '017f22e2-79b0-76ff-bfff-f');
97 });
98 (0, node_test_1.default)('internal seq is reset upon timestamp change', () => {
99 (0, v7_js_1.default)({
100 msecs: RFC_MSECS,
101 seq: 0x6fffffff,
102 });
103 const uuid = (0, v7_js_1.default)({
104 msecs: RFC_MSECS + 1,
105 });
106 assert.ok(uuid.indexOf('fff') !== 15);
107 });
108 (0, node_test_1.default)('v7() state transitions', () => {
109 const tests = [
110 {
111 title: 'new time interval',
112 state: { msecs: 1, seq: 123 },
113 now: 2,
114 expected: {
115 msecs: 2,
116 seq: 0x6c318c4,
117 },
118 },
119 {
120 title: 'same time interval',
121 state: { msecs: 1, seq: 123 },
122 now: 1,
123 expected: {
124 msecs: 1,
125 seq: 124,
126 },
127 },
128 {
129 title: 'same time interval (sequence rollover)',
130 state: { msecs: 1, seq: 0xffffffff },
131 now: 1,
132 expected: {
133 msecs: 2,
134 seq: 0,
135 },
136 },
137 {
138 title: 'time regression',
139 state: { msecs: 2, seq: 123 },
140 now: 1,
141 expected: {
142 msecs: 2,
143 seq: 124,
144 },
145 },
146 {
147 title: 'time regression (sequence rollover)',
148 state: { msecs: 2, seq: 0xffffffff },
149 now: 1,
150 expected: {
151 msecs: 3,
152 seq: 0,
153 },
154 },
155 ];
156 for (const { title, state, now, expected } of tests) {
157 assert.deepStrictEqual((0, v7_js_1.updateV7State)(state, now, RFC_RANDOM), expected, `Failed: ${title}`);
158 }
159 });
160 (0, node_test_1.default)('flipping bits changes the result', () => {
161 const asBigInt = (buf) => buf.reduce((acc, v) => (acc << 8n) | BigInt(v), 0n);
162 const asNumber = (bits, data) => Number(BigInt.asUintN(bits, data));
163 const flip = (data, n) => data ^ (1n << BigInt(127 - n));
164 const optionsFrom = (data) => {
165 const ms = asNumber(48, data >> 80n);
166 const hi = asNumber(12, data >> 64n);
167 const lo = asNumber(20, data >> 42n);
168 const r = BigInt.asUintN(42, data);
169 return {
170 msecs: ms,
171 seq: (hi << 20) | lo,
172 random: Uint8Array.from([
173 ...Array(10).fill(0),
174 ...Array(6)
175 .fill(0)
176 .map((_, i) => asNumber(8, r >> (BigInt(i) * 8n)))
177 .reverse(),
178 ]),
179 };
180 };
181 const buf = new Uint8Array(16);
182 const data = asBigInt((0, v7_js_1.default)({}, buf));
183 const id = (0, stringify_js_1.default)(buf);
184 const reserved = [48, 49, 50, 51, 64, 65];
185 for (let i = 0; i < 128; ++i) {
186 if (reserved.includes(i)) {
187 continue;
188 }
189 const flipped = flip(data, i);
190 assert.strictEqual(asBigInt((0, v7_js_1.default)(optionsFrom(flipped), buf)).toString(16), flipped.toString(16), `Unequal uuids at bit ${i}`);
191 assert.notStrictEqual((0, stringify_js_1.default)(buf), id);
192 }
193 });
194});
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