mpackdb

690 B

1. import assert from 'assert';
2. import { rm } from 'fs/promises';
3. import { MPackDB } from '../src/MPackDB.js';
5. const TEST_DB_PATH = './db/explicit-zero-primary-key';
7. await rm(TEST_DB_PATH, { recursive: true, force: true });
9. const db = new MPackDB(`${TEST_DB_PATH}/records`, { primaryKey: '*idx' });
11. const inserted = await db.insert({ idx: 0, value: 'zero' });
12. assert.equal(inserted, 0);
14. const rows = [];
15. for await (const row of db.find()) {
16. rows.push(row);
17. }
19. assert.deepEqual(rows, [{ idx: 0, value: 'zero' }]);
21. await assert.rejects(
22. () => db.insert({ idx: 0, value: 'duplicate' }),
23. err => err.code === 'DUPLICATE_KEY'
24. );
26. console.log('explicit numeric primary key 0 is preserved');