notes

2.2 KB

1. // Cross-compat phase B step 2: the REAL JS mpackdb opens a db WRITTEN BY the
2. // Zig port (compat_driver.zig write_b: @uuid pk + city/*score indexes),
3. // asserts contents, then mutates it (insert + delete) for the Zig side to
4. // re-verify (compat_driver.zig verify_b2).
5. //
6. // Default compact:true — JS compacts and rebuilds indexes from the
7. // Zig-written data file on open (exercises the full JS init path on Zig files).
8. //
9. // Run: MPACKDB=/tmp/mpackdb-run node verify_b.mjs /tmp/compat/places_b
10. import { pathToFileURL } from 'url';
11. const MOD = process.env.MPACKDB || '/tmp/mpackdb-run';
12. const { default: MPackDB } = await import(pathToFileURL(MOD + '/src/MPackDB.js'));
14. const dbfile = process.argv[2];
15. if (!dbfile) throw new Error('usage: verify_b.mjs <dbfile>');
17. let failures = 0;
18. const check = (label, cond) => {
19. console.log(`${cond ? 'PASS' : 'FAIL'}: ${label}`);
20. if (!cond) failures++;
21. };
23. const db = new MPackDB(dbfile, { primaryKey: '@uuid', indexes: ['city', '*score'] });
25. const all = await db.find();
26. check('three Zig-written records', all.length === 3);
28. const [bob] = await db.find(r => r.city === 'Helsinki', { index: { field: 'city', value: 'Helsinki' } });
29. check('city index lookup (Helsinki)', !!bob);
30. check('unicode name Böb', bob?.name === 'Böb');
31. check('negative score', bob?.score === -3);
32. check('nested meta.active true', bob?.meta?.active === true);
33. check('nested meta.note null', bob?.meta?.note === null);
35. const [chidi] = await db.find(null, { index: { field: 'score', from: 4294967296 } });
36. check('score range finds 2^32 value', chidi?.score === 4294967296);
38. const ada = all.find(r => r.name === 'Ada');
39. check('Zig uuid is 12 base36 chars', /^[0-9a-z]{12}$/.test(ada?.uuid ?? ''));
40. const [adaByPk] = await db.find(ada.uuid);
41. check('uuid pk lookup', adaByPk?.city === 'Klagenfurt');
43. const woergl = all.find(r => r.city === 'Wörgl');
44. check('unicode city Wörgl intact', !!woergl);
46. // mutate for the Zig side
47. const newUuid = await db.insert({ name: 'Remote', city: 'Byrodin', score: 7 });
48. check('JS insert on Zig db returns uuid', /^[0-9a-z]{12}$/.test(newUuid));
49. const deleted = await db.delete(ada.uuid);
50. check('JS delete by uuid pk', deleted.length === 1);
52. await db.close();
53. console.log(failures === 0 ? 'JS verify_b: ALL PASS' : `JS verify_b: ${failures} FAILURES`);
54. process.exit(failures === 0 ? 0 : 1);