| 1 | import * as assert from 'assert';
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| 2 | import test, { describe } from 'node:test';
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| 3 | import native from '../native.js';
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| 4 | import v4 from '../v4.js';
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| 5 | const randomBytesFixture = Uint8Array.of(0x10, 0x91, 0x56, 0xbe, 0xc4, 0xfb, 0xc1, 0xea, 0x71, 0xb4, 0xef, 0xe1, 0x67, 0x1c, 0x58, 0x36);
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| 6 | const expectedBytes = Uint8Array.of(16, 145, 86, 190, 196, 251, 65, 234, 177, 180, 239, 225, 103, 28, 88, 54);
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| 7 | describe('v4', () => {
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| 8 | test('subsequent UUIDs are different', () => {
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| 9 | const id1 = v4();
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| 10 | const id2 = v4();
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| 11 | assert.ok(id1 !== id2);
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| 12 | });
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| 13 | test('should uses native randomUUID() if no option is passed', async () => {
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| 14 | const mock = (await import('node:test')).default.mock;
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| 15 | if (!mock) {
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| 16 | return;
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| 17 | }
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| 18 | const mockRandomUUID = mock.method(native, 'randomUUID');
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| 19 | assert.equal(mockRandomUUID.mock.callCount(), 0);
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| 20 | v4();
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| 21 | assert.equal(mockRandomUUID.mock.callCount(), 1);
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| 22 | mock.restoreAll();
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| 23 | });
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| 24 | test('should not use native randomUUID() if an option is passed', async () => {
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| 25 | const mock = (await import('node:test')).default.mock;
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| 26 | if (!mock) {
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| 27 | return;
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| 28 | }
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| 29 | const mockRandomUUID = mock.method(native, 'randomUUID');
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| 30 | assert.equal(mockRandomUUID.mock.callCount(), 0);
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| 31 | v4({});
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| 32 | assert.equal(mockRandomUUID.mock.callCount(), 0);
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| 33 | mock.restoreAll();
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| 34 | });
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| 35 | test('explicit options.random produces expected result', () => {
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| 36 | const id = v4({ random: randomBytesFixture });
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| 37 | assert.strictEqual(id, '109156be-c4fb-41ea-b1b4-efe1671c5836');
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| 38 | });
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| 39 | test('explicit options.rng produces expected result', () => {
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| 40 | const id = v4({ rng: () => randomBytesFixture });
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| 41 | assert.strictEqual(id, '109156be-c4fb-41ea-b1b4-efe1671c5836');
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| 42 | });
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| 43 | test('fills one UUID into a buffer as expected', () => {
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| 44 | const buffer = new Uint8Array(16);
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| 45 | const result = v4({ random: randomBytesFixture }, buffer);
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| 46 | assert.deepEqual(buffer, expectedBytes);
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| 47 | assert.strictEqual(buffer, result);
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| 48 | });
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| 49 | test('fills two UUIDs into a buffer as expected', () => {
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| 50 | const buffer = new Uint8Array(32);
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| 51 | v4({ random: randomBytesFixture }, buffer, 0);
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| 52 | v4({ random: randomBytesFixture }, buffer, 16);
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| 53 | const expectedBuf = new Uint8Array(32);
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| 54 | expectedBuf.set(expectedBytes);
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| 55 | expectedBuf.set(expectedBytes, 16);
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| 56 | assert.deepEqual(buffer, expectedBuf);
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| 57 | });
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| 58 | });
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