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test(minidb): deflake the evict-lru compaction-churn guard #2892

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Merged
7Sageer merged 1 commit into from
Aug 13, 2026
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test(minidb): deflake the evict-lru compaction-churn guard #2892

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7 changes: 6 additions & 1 deletion packages/minidb/test/e2e/stress.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import { MiniDb } from '../../src/index.js';
import { startServer } from '../../src/server.js';
import { tmpDir, rmrf } from './helpers/tmp.js';
import { mulberry32 } from './helpers/prng.js';
import { waitFor } from '../helpers.js';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

Expand Down Expand Up @@ -570,7 +571,11 @@ test(
await db.set(`ek${i}`, { i, pad: 'e'.repeat(1100) });
if (i % 7 === 0) db.get(`ek${Math.max(0, i - 3)}`);
}
expect(db.stats.compactions).toBeGreaterThan(0);
// Auto-compaction is fire-and-forget through the maintenance scheduler,
// so the write loop finishing does not imply a run has completed yet —
// wait for the churn this scenario requires instead of assuming the
// loop outlasted it (flakes on loaded CI runners).
await waitFor(() => db.stats.compactions > 0, 'auto compaction under churn');
expect(db.store.bytes).toBeLessThanOrEqual(Math.ceil(budget * 1.05));
expect(db.stats.evictions).toBeGreaterThan(0);
} catch (err) {
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