126 lines
No EOL
11 KiB
JavaScript
126 lines
No EOL
11 KiB
JavaScript
import * as assert from 'assert';
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import test, { describe } from 'node:test';
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import parse from '../parse.js';
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import v1, { updateV1State } from '../v1.js';
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const TIME = 1321644961388;
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const RFC_V1 = 'c232ab00-9414-11ec-b3c8-9f68deced846';
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const RFC_V1_BYTES = parse(RFC_V1);
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const RFC_OPTIONS = {
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msecs: 0x17f22e279b0,
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nsecs: 0,
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clockseq: 0x33c8,
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node: Uint8Array.of(0x9f, 0x68, 0xde, 0xce, 0xd8, 0x46),
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};
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const RFC_RANDOM = Uint8Array.of(0, 0, 0, 0, 0, 0, 0, 0, RFC_OPTIONS.clockseq >> 8, RFC_OPTIONS.clockseq & 0xff, ...RFC_OPTIONS.node);
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function compareV1TimeField(a, b) {
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a = a.split('-').slice(0, 3).reverse().join('');
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b = b.split('-').slice(0, 3).reverse().join('');
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return a < b ? -1 : a > b ? 1 : 0;
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}
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describe('v1', () => {
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test('v1 sort order (default)', () => {
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const ids = [v1(), v1(), v1(), v1(), v1()];
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const sorted = [...ids].sort(compareV1TimeField);
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assert.deepEqual(ids, sorted);
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});
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test('v1 sort order (time option)', () => {
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const ids = [
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v1({ msecs: TIME - 10 * 3600 * 1000 }),
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v1({ msecs: TIME - 1 }),
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v1({ msecs: TIME }),
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v1({ msecs: TIME + 1 }),
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v1({ msecs: TIME + 28 * 24 * 3600 * 1000 }),
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];
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const sorted = [...ids].sort(compareV1TimeField);
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assert.deepEqual(ids, sorted);
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});
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test('v1(options)', () => {
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assert.equal(v1({ msecs: RFC_OPTIONS.msecs, random: RFC_RANDOM }), RFC_V1, 'minimal options');
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assert.equal(v1(RFC_OPTIONS), RFC_V1, 'full options');
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});
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test('v1(options) equality', () => {
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assert.notEqual(v1({ msecs: TIME }), v1({ msecs: TIME }), 'UUIDs with minimal options differ');
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assert.equal(v1(RFC_OPTIONS), v1(RFC_OPTIONS), 'UUIDs with full options are identical');
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});
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test('fills one UUID into a buffer as expected', () => {
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const buffer = new Uint8Array(16);
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const result = v1(RFC_OPTIONS, buffer);
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assert.deepEqual(buffer, RFC_V1_BYTES);
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assert.strictEqual(buffer, result);
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});
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test('fills two UUIDs into a buffer as expected', () => {
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const buffer = new Uint8Array(32);
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v1(RFC_OPTIONS, buffer, 0);
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v1(RFC_OPTIONS, buffer, 16);
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const expectedBuf = new Uint8Array(32);
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expectedBuf.set(RFC_V1_BYTES);
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expectedBuf.set(RFC_V1_BYTES, 16);
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assert.deepEqual(buffer, expectedBuf);
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});
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test('v1() state transitions', () => {
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const PRE_STATE = {
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msecs: 10,
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nsecs: 20,
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clockseq: 0x1234,
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node: Uint8Array.of(0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc),
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};
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const tests = [
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{
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title: 'initial state',
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state: {},
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now: 10,
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expected: {
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msecs: 10,
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nsecs: 0,
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clockseq: RFC_OPTIONS.clockseq,
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node: RFC_OPTIONS.node,
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},
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},
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{
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title: 'same time interval',
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state: { ...PRE_STATE },
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now: PRE_STATE.msecs,
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expected: {
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...PRE_STATE,
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nsecs: 21,
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},
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},
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{
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title: 'new time interval',
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state: { ...PRE_STATE },
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now: PRE_STATE.msecs + 1,
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expected: {
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...PRE_STATE,
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msecs: PRE_STATE.msecs + 1,
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nsecs: 0,
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},
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},
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{
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title: 'same time interval (nsecs overflow)',
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state: { ...PRE_STATE, nsecs: 9999 },
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now: PRE_STATE.msecs,
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expected: {
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...PRE_STATE,
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nsecs: 0,
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clockseq: RFC_OPTIONS.clockseq,
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node: RFC_OPTIONS.node,
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},
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},
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{
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title: 'time regression',
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state: { ...PRE_STATE },
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now: PRE_STATE.msecs - 1,
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expected: {
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...PRE_STATE,
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msecs: PRE_STATE.msecs - 1,
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clockseq: RFC_OPTIONS.clockseq,
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node: RFC_OPTIONS.node,
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},
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},
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];
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for (const { title, state, now, expected } of tests) {
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assert.deepStrictEqual(updateV1State(state, now, RFC_RANDOM), expected, `Failed: ${title}`);
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}
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});
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});
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