40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
import { describe, expect, it, vi } from "vitest";
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import { generateUUID } from "./uuid.ts";
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describe("generateUUID", () => {
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it("uses crypto.randomUUID when available", () => {
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const id = generateUUID({
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randomUUID: () => "randomuuid",
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getRandomValues: () => {
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throw new Error("should not be called");
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},
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});
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expect(id).toBe("randomuuid");
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});
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it("falls back to crypto.getRandomValues", () => {
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const id = generateUUID({
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getRandomValues: (bytes) => {
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for (let i = 0; i < bytes.length; i++) {
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bytes[i] = i;
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}
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return bytes;
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},
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});
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expect(id).toBe("00010203-0405-4607-8809-0a0b0c0d0e0f");
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});
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it("still returns a v4 UUID when crypto is missing", () => {
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const warnSpy = vi.spyOn(console, "warn").mockImplementation(() => {});
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try {
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const id = generateUUID(null);
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expect(id).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/);
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expect(warnSpy).toHaveBeenCalled();
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} finally {
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warnSpy.mockRestore();
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}
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});
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});
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