xiaoju
cf17dedac3
Move 34 flat modules into cas/, registry/, bundle/, extract/, engine/, util/. Move gc.ts to engine/ (was in cas/) to avoid cas→engine reverse dependency. Dependency direction: util ← cas ← extract ← engine, util ← registry ← bundle. No logic changes — only file locations and import paths. Refs #102
30 lines
958 B
TypeScript
30 lines
958 B
TypeScript
import { describe, expect, test } from "bun:test";
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import { decodeCrockfordBase32Bits } from "../src/util/base32.js";
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import { generateUlid } from "../src/util/ulid.js";
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describe("generateUlid", () => {
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test("length and decodable Crockford payload", () => {
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const id = generateUlid(1_714_963_200_000);
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expect(id.length).toBe(26);
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const decoded = decodeCrockfordBase32Bits(id, 128);
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expect(decoded.ok).toBe(true);
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});
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test("embeds 48-bit timestamp at the MSB of the 128-bit payload", () => {
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const ts = 9_999_888_777_666;
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const id = generateUlid(ts);
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const decoded = decodeCrockfordBase32Bits(id, 128);
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expect(decoded.ok).toBe(true);
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if (decoded.ok) {
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const recoveredMs = decoded.value >> 80n;
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expect(Number(recoveredMs)).toBe(ts);
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}
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});
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test("rejects out-of-range timestamps", () => {
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expect(() => generateUlid(-1)).toThrow();
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expect(() => generateUlid(2 ** 48)).toThrow();
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});
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});
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