mpackdb

1.4 KB

1. import MPackDB from '../src/MPackDB.js';
2. import { rm } from 'fs/promises';
3. import { spawn } from 'child_process';
5. const TEST_DB_PATH = 'db/concurrent';
7. console.log('--- Concurrent Lock Test ---');
9. // Clean up
10. await rm(TEST_DB_PATH, { recursive: true, force: true });
12. // Test 1: Concurrent writes from same process
13. console.log('\nTest 1: Concurrent writes (same process)');
14. const db = new MPackDB(`${TEST_DB_PATH}/db`, { debug: true });
16. const writes = [];
17. const startTime = Date.now();
19. // Fire 10 concurrent inserts
20. for (let i = 0; i < 10; i++) {
21. writes.push(db.insert({ id: i, data: `record-${i}` }));
22. }
24. await Promise.all(writes);
25. const duration = Date.now() - startTime;
27. console.log(`✓ Completed 10 concurrent inserts in ${duration}ms`);
28. console.log(` Average: ${(duration / 10).toFixed(1)}ms per insert`);
30. const all = await db.find();
31. console.log(`✓ All ${all.length} records written correctly`);
33. // Test 2: Verify serialization (they should have waited for each other)
34. if (duration < 50) {
35. console.log('⚠ Warning: Inserts were too fast - lock might not be working');
36. } else {
37. console.log('✓ Inserts were serialized (lock is working)');
38. }
40. // Test 3: Check no corruption
41. const uniqueIds = new Set(all.map(r => r.id));
42. if (uniqueIds.size === 10) {
43. console.log('✓ No data corruption - all records unique');
44. } else {
45. throw new Error('❌ Data corruption detected!');
46. }
48. console.log('\n✓ Concurrent lock test passed!');