import { describe, expect, it } from 'vitest';
import { generateCreationId } from './creation-id.js';
describe('generateCreationId', () => {
    it('starts with "pin"', () => {
        expect(generateCreationId()).toMatch(/^pin/);
    });
    it('has 4 random lowercase-alphanumeric chars after "pin"', () => {
        expect(generateCreationId()).toMatch(/^pin[a-z0-9]{4}/);
    });
    it('ends with a numeric timestamp (ms)', () => {
        const before = Date.now();
        const id = generateCreationId();
        const after = Date.now();
        const ts = parseInt(id.replace(/^pin[a-z0-9]{4}/, ''), 10);
        expect(ts).toBeGreaterThanOrEqual(before);
        expect(ts).toBeLessThanOrEqual(after);
    });
    it('generates unique IDs', () => {
        const ids = new Set(Array.from({ length: 100 }, generateCreationId));
        expect(ids.size).toBe(100);
    });
});