Files
gbrain/test/embed.serial.test.ts
T
176836f84d fix(embed): stamp the real model on chunk provenance and keep contextual prefixes on --stale (#3461, #3507) (#3538)
#3461 — insertChunks stamped DEFAULT_EMBEDDING_MODEL on chunk provenance
whenever the AI gateway was unconfigured: getEmbeddingModel() throws
rather than returning falsy, so the reland's '|| resolvedModel' guard
(e1919fab) was dead code and the catch path kept the compile-time
constant. Both engines now fall back to the brain's own
config.embedding_model row on the throw path, with the compiled default
as last resort. Same-line sibling: the ON CONFLICT clause overwrote
'model' via COALESCE even when the existing vector was preserved —
'model' now mirrors the 'embedding' CASE branch-for-branch so the label
always describes whichever vector wins the upsert. The initSchema
sizing sites drop their dead '||' terms too.

#3507 — every plain re-embed path (embed <slug>, --all, --stale, and
the embed-backfill Minion loop) embedded raw chunk_text, silently
stripping the contextual-retrieval prefixes the sync path applied —
and embed --stale is the NORMAL post-model-migration path. All four
sites now wrap through wrapChunkTextsForStoredMode(), reproducing the
page's STORED convention (pages.contextual_retrieval_mode):
title/per_chunk_synopsis pages get the title-tier prefix, fenced_code
chunks stay unwrapped (D20-T4), unstamped pages stay raw. A fully
re-embedded per_chunk_synopsis page is restamped to 'title' so the
mode column keeps describing the vectors actually in the DB.

Deliberately NOT folding the contextual mode into
currentEmbeddingSignature(): the convention is already recorded
per-page (mode + corpus_generation), pages legitimately differ
per-page so a global signature cannot represent it, and bumping
signature semantics would force a full-corpus re-embed on upgrade.
No KNOBS_HASH_VERSION change (no collision with #3514).

Tests fail on unmodified master (6) and pass with the fix; postgres.js
path verified against a real pgvector instance in addition to the
PGLite suite.

Co-authored-by: Garry Tan <garrytan@gmail.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-07-28 14:12:08 -07:00

983 lines
44 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
import { describe, test, expect, mock, beforeEach, afterEach } from 'bun:test';
import type { BrainEngine } from '../src/core/engine.ts';
// Mock the embedding module BEFORE importing runEmbed, so runEmbed picks up
// the mocked embedBatch. We track max concurrent invocations via a counter
// that increments on entry and decrements when the mock resolves.
let activeEmbedCalls = 0;
let maxConcurrentEmbedCalls = 0;
let totalEmbedCalls = 0;
// D5: capture per-call opts so tests can assert maxRetries / abortSignal
// passthrough into the gateway path.
let lastEmbedBatchOpts: unknown = undefined;
// D5: pluggable behavior for tests that need to simulate 429s or aborts.
let embedBatchBehavior: ((texts: string[], opts?: unknown) => Promise<Float32Array[]>) | null = null;
mock.module('../src/core/embedding.ts', () => ({
embedBatch: async (texts: string[], opts?: unknown) => {
activeEmbedCalls++;
totalEmbedCalls++;
lastEmbedBatchOpts = opts;
if (activeEmbedCalls > maxConcurrentEmbedCalls) {
maxConcurrentEmbedCalls = activeEmbedCalls;
}
try {
if (embedBatchBehavior) {
return await embedBatchBehavior(texts, opts);
}
// Default: simulate API latency so concurrent workers actually overlap.
await new Promise(r => setTimeout(r, 30));
return texts.map(() => new Float32Array(1536));
} finally {
activeEmbedCalls--;
}
},
// v0.41.31: embedAll/embedAllStale read the current embedding signature to
// stamp provenance. The mock returns a stable value; the mock engine's
// setPageEmbeddingSignature / invalidateStaleSignatureEmbeddings resolve to
// null via the Proxy default, so the signature value is inert here.
currentEmbeddingSignature: () => 'test:model:1536',
}));
// Import AFTER mocking.
const { runEmbed, runEmbedCore } = await import('../src/commands/embed.ts');
// v0.41.6.0 D1: runEmbedCore now preflights embedding credentials. This
// test stack uses the LEGACY embedBatch mock path, not the gateway,
// so the preflight would throw before our mocks see anything. Install
// the gateway embed transport seam so diagnoseEmbedding's fast-path
// flags the preflight as ok without touching real env vars.
const { __setEmbedTransportForTests } = await import('../src/core/ai/gateway.ts');
__setEmbedTransportForTests(async () => ({ embeddings: [], usage: { tokens: 0 } } as any));
// Proxy-based mock engine that matches test/import-file.test.ts pattern.
function mockEngine(overrides: Partial<Record<string, any>> = {}): BrainEngine {
const calls: { method: string; args: any[] }[] = [];
const track = (method: string) => (...args: any[]) => {
calls.push({ method, args });
if (overrides[method]) return overrides[method](...args);
return Promise.resolve(null);
};
const engine = new Proxy({} as any, {
get(_, prop: string) {
if (prop === '_calls') return calls;
if (overrides[prop]) return overrides[prop];
return track(prop);
},
});
return engine;
}
beforeEach(() => {
activeEmbedCalls = 0;
maxConcurrentEmbedCalls = 0;
totalEmbedCalls = 0;
lastEmbedBatchOpts = undefined;
embedBatchBehavior = null;
});
afterEach(() => {
delete process.env.GBRAIN_EMBED_CONCURRENCY;
delete process.env.GBRAIN_EMBED_TIME_BUDGET_MS;
});
describe('runEmbed --all (parallel)', () => {
test('runs embedBatch calls concurrently across pages', async () => {
const NUM_PAGES = 20;
const pages = Array.from({ length: NUM_PAGES }, (_, i) => ({ slug: `page-${i}` }));
// Each page has one chunk without an embedding (stale).
const chunksBySlug = new Map(
pages.map(p => [
p.slug,
[{ chunk_index: 0, chunk_text: `text for ${p.slug}`, chunk_source: 'compiled_truth', embedded_at: null, token_count: 4 }],
]),
);
const engine = mockEngine({
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
process.env.GBRAIN_EMBED_CONCURRENCY = '10';
await runEmbed(engine, ['--all']);
expect(totalEmbedCalls).toBe(NUM_PAGES);
// Concurrency actually happened.
expect(maxConcurrentEmbedCalls).toBeGreaterThan(1);
// And stayed within the configured limit.
expect(maxConcurrentEmbedCalls).toBeLessThanOrEqual(10);
});
test('v0.41.31: stamps embedding_signature after embedding each page (--all)', async () => {
const pages = [{ slug: 'a', source_id: 'default' }, { slug: 'b', source_id: 'default' }];
const chunksBySlug = new Map(
pages.map(p => [
p.slug,
[{ chunk_index: 0, chunk_text: `text ${p.slug}`, chunk_source: 'compiled_truth', embedded_at: null, token_count: 4 }],
]),
);
const engine = mockEngine({
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
await runEmbed(engine, ['--all']);
// The wiring gap this pins: embedAll must CALL setPageEmbeddingSignature
// after upsertChunks, with the current signature (mocked to test:model:1536).
const stampCalls = (engine as any)._calls.filter((c: any) => c.method === 'setPageEmbeddingSignature');
expect(stampCalls.length).toBe(2); // one per page
expect(stampCalls[0].args[1]).toEqual({ sourceId: 'default', signature: 'test:model:1536' });
});
// #1737: cooperative abort. A pre-aborted signal must stop the embed loop
// BEFORE any embedBatch call, so a job killed by wall-clock/lock-loss frees
// the worker (and lets the cycle's finally release gbrain_cycle_locks)
// instead of grinding through the full 10-15 min embed phase.
test('#1737 --all: pre-aborted signal embeds nothing (no embedBatch call)', async () => {
const pages = Array.from({ length: 10 }, (_, i) => ({ slug: `page-${i}`, source_id: 'default' }));
const chunksBySlug = new Map(
pages.map(p => [
p.slug,
[{ chunk_index: 0, chunk_text: `text ${p.slug}`, chunk_source: 'compiled_truth', embedded_at: null, token_count: 4 }],
]),
);
const engine = mockEngine({
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
const ac = new AbortController();
ac.abort(new Error('wall-clock'));
const result = await runEmbedCore(engine, { all: true, signal: ac.signal });
expect(totalEmbedCalls).toBe(0);
expect(result.embedded).toBe(0);
});
test('#1737 --stale: pre-aborted signal breaks the loop before listStaleChunks', async () => {
let listStaleCalls = 0;
const engine = mockEngine({
countStaleChunks: async () => 5, // non-zero so we pass the early return
listStaleChunks: async () => { listStaleCalls++; return []; },
invalidateStaleSignatureEmbeddings: async () => 0,
});
const ac = new AbortController();
ac.abort(new Error('lock-lost'));
const result = await runEmbedCore(engine, { stale: true, signal: ac.signal });
// The top-of-loop abort check fires before the first listStaleChunks page load.
expect(listStaleCalls).toBe(0);
expect(totalEmbedCalls).toBe(0);
expect(result.embedded).toBe(0);
});
test('respects GBRAIN_EMBED_CONCURRENCY=1 (serial)', async () => {
const pages = Array.from({ length: 5 }, (_, i) => ({ slug: `page-${i}` }));
const chunksBySlug = new Map(
pages.map(p => [
p.slug,
[{ chunk_index: 0, chunk_text: `text ${p.slug}`, chunk_source: 'compiled_truth', embedded_at: null, token_count: 4 }],
]),
);
const engine = mockEngine({
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
process.env.GBRAIN_EMBED_CONCURRENCY = '1';
await runEmbed(engine, ['--all']);
expect(totalEmbedCalls).toBe(5);
expect(maxConcurrentEmbedCalls).toBe(1);
});
test('skips pages whose chunks are all already embedded when --stale', async () => {
const chunksBySlug = new Map<string, any[]>([
['fresh', [{ chunk_index: 0, chunk_text: 'hi', chunk_source: 'compiled_truth', embedded_at: '2026-01-01', token_count: 1 }]],
['stale', [{ chunk_index: 0, chunk_text: 'hi', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 }]],
]);
// Stale path uses countStaleChunks + listStaleChunks (SQL-side filter), not listPages.
// D5a: source_id + page_id required on StaleChunkRow as of v0.33.3 cursor pagination.
const stale = [
{ slug: 'stale', chunk_index: 0, chunk_text: 'hi', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 1 },
];
const engine = mockEngine({
countStaleChunks: async () => 1,
listStaleChunks: async () => stale,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
process.env.GBRAIN_EMBED_CONCURRENCY = '5';
await runEmbed(engine, ['--stale']);
// Only the stale page triggers an embedBatch call.
expect(totalEmbedCalls).toBe(1);
});
});
// ────────────────────────────────────────────────────────────────
// runEmbedCore dry-run mode (v0.17 regression guard)
// ────────────────────────────────────────────────────────────────
describe('runEmbedCore --dry-run never calls the embedding model', () => {
test('dry-run --all with stale chunks: no embedBatch calls, accurate would_embed', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
const pages = Array.from({ length: 3 }, (_, i) => ({ slug: `page-${i}` }));
// All 3 pages have 2 stale chunks each (none embedded).
const chunksBySlug = new Map<string, any[]>(
pages.map(p => [
p.slug,
[
{ chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 1, chunk_text: 'b', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
],
]),
);
// SQL-side stale path: 6 stale rows across 3 pages.
// D5a: source_id + page_id required on StaleChunkRow.
const stale = pages.flatMap((p, pi) => [
{ slug: p.slug, chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: pi + 1 },
{ slug: p.slug, chunk_index: 1, chunk_text: 'b', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: pi + 1 },
]);
const upserts: string[] = [];
const engine = mockEngine({
countStaleChunks: async () => 6,
listStaleChunks: async () => stale,
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async (slug: string) => { upserts.push(slug); },
});
const result = await runEmbedCore(engine, { stale: true, dryRun: true });
// No OpenAI calls.
expect(totalEmbedCalls).toBe(0);
// No DB writes.
expect(upserts).toEqual([]);
// Accurate counts.
expect(result.dryRun).toBe(true);
expect(result.embedded).toBe(0);
expect(result.would_embed).toBe(6); // 3 pages * 2 chunks each
// skipped is 0 in the new SQL-side path: we never considered non-stale chunks.
expect(result.skipped).toBe(0);
expect(result.total_chunks).toBe(6); // only stale chunks counted in SQL-side path
// v0.33.3 cherry-pick: dry-run skips the cursor walk and only does a
// countStaleChunks call. pages_processed is 0 because we don't enumerate
// pages in dry-run (cheaper pre-flight).
expect(result.pages_processed).toBe(0);
});
test('dry-run --stale correctly identifies stale chunks (SQL-side path)', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
// SQL-side stale: only the 3 chunks where embedding IS NULL come back,
// grouped by slug. 'fresh' page has no stale rows so it's not in the result.
// D5a: source_id + page_id required on StaleChunkRow.
const stale = [
{ slug: 'partial', chunk_index: 1, chunk_text: 'b', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 1 },
{ slug: 'all-stale', chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 2 },
{ slug: 'all-stale', chunk_index: 1, chunk_text: 'b', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 2 },
];
const engine = mockEngine({
countStaleChunks: async () => 3,
listStaleChunks: async () => stale,
upsertChunks: async () => {},
});
const result = await runEmbedCore(engine, { stale: true, dryRun: true });
expect(totalEmbedCalls).toBe(0);
expect(result.dryRun).toBe(true);
expect(result.would_embed).toBe(3); // 1 from 'partial' + 2 from 'all-stale'
// SQL-side path does not see non-stale chunks, so skipped=0 and total_chunks=stale-count.
// Callers wanting full coverage should call engine.getStats()/getHealth() afterward.
expect(result.skipped).toBe(0);
expect(result.total_chunks).toBe(3);
// v0.33.3 cherry-pick: pages_processed=0 in dry-run because we skip
// the cursor walk (countStaleChunks-only pre-flight).
expect(result.pages_processed).toBe(0);
});
test('dry-run --slugs on a single page counts stale chunks, no API calls', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
const chunks = [
{ chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 1, chunk_text: 'b', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 2, chunk_text: 'c', chunk_source: 'compiled_truth', embedded_at: '2026-01-01', token_count: 1 },
];
const engine = mockEngine({
getPage: async () => ({ slug: 'my-page', compiled_truth: 'text', timeline: '' }),
getChunks: async () => chunks,
upsertChunks: async () => {},
});
const result = await runEmbedCore(engine, { slugs: ['my-page'], dryRun: true });
expect(totalEmbedCalls).toBe(0);
expect(result.dryRun).toBe(true);
expect(result.would_embed).toBe(2);
expect(result.skipped).toBe(1);
expect(result.total_chunks).toBe(3);
expect(result.pages_processed).toBe(1);
});
test('non-dry-run path reports accurate embedded count (regression guard)', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
const chunksBySlug = new Map<string, any[]>([
['a', [{ chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 }]],
['b', [
{ chunk_index: 0, chunk_text: 'x', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 1, chunk_text: 'y', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
]],
]);
// D5a: source_id + page_id required on StaleChunkRow.
const stale = [
{ slug: 'a', chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 1 },
{ slug: 'b', chunk_index: 0, chunk_text: 'x', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 2 },
{ slug: 'b', chunk_index: 1, chunk_text: 'y', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 2 },
];
const engine = mockEngine({
countStaleChunks: async () => 3,
listStaleChunks: async () => stale,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
process.env.GBRAIN_EMBED_CONCURRENCY = '2';
const result = await runEmbedCore(engine, { stale: true });
expect(result.dryRun).toBe(false);
expect(result.embedded).toBe(3); // 1 from a + 2 from b
expect(result.would_embed).toBe(0);
expect(result.pages_processed).toBe(2);
});
});
// ────────────────────────────────────────────────────────────────
// runEmbedCore --stale egress fix: SQL-side staleness filter
// Replaces the listPages + per-page getChunks bomb with a count +
// slug-grouped SELECT. On a 100%-embedded brain, 0 listPages calls.
// ────────────────────────────────────────────────────────────────
describe('runEmbedCore --stale egress fix (SQL-side filter)', () => {
test('zero stale chunks: countStaleChunks short-circuits, listPages never called', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
let listPagesCalled = false;
let getChunksCalled = false;
let listStaleCalled = false;
const engine = mockEngine({
countStaleChunks: async () => 0,
listPages: async () => { listPagesCalled = true; return []; },
getChunks: async () => { getChunksCalled = true; return []; },
listStaleChunks: async () => { listStaleCalled = true; return []; },
upsertChunks: async () => {},
});
const result = await runEmbedCore(engine, { stale: true });
expect(result.embedded).toBe(0);
expect(result.pages_processed).toBe(0);
// The egress fix: NONE of these should have been called when count=0.
expect(listPagesCalled).toBe(false);
expect(getChunksCalled).toBe(false);
expect(listStaleCalled).toBe(false);
expect(totalEmbedCalls).toBe(0);
});
test('N stale chunks across M pages: only stale slugs re-fetched, exact stale set embedded, non-stale chunks preserved', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
let listPagesCalled = false;
// D5a: source_id + page_id required on StaleChunkRow.
const stale = [
{ slug: 'page-a', chunk_index: 0, chunk_text: 'x', chunk_source: 'compiled_truth' as const, model: null, token_count: null, source_id: 'default', page_id: 1 },
{ slug: 'page-b', chunk_index: 1, chunk_text: 'y', chunk_source: 'compiled_truth' as const, model: null, token_count: null, source_id: 'default', page_id: 2 },
{ slug: 'page-b', chunk_index: 2, chunk_text: 'z', chunk_source: 'compiled_truth' as const, model: null, token_count: null, source_id: 'default', page_id: 2 },
];
// page-b has a FRESH chunk at index 0 that must be preserved through the upsert.
const fullChunks: Record<string, any[]> = {
'page-a': [
{ chunk_index: 0, chunk_text: 'x', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
],
'page-b': [
{ chunk_index: 0, chunk_text: 'fresh', chunk_source: 'compiled_truth', embedded_at: '2026-01-01', token_count: 5 },
{ chunk_index: 1, chunk_text: 'y', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 2, chunk_text: 'z', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
],
};
const upsertCalls: Array<{ slug: string; chunks: any[] }> = [];
const engine = mockEngine({
countStaleChunks: async () => 3,
listStaleChunks: async () => stale,
listPages: async () => { listPagesCalled = true; return []; },
getChunks: async (slug: string) => fullChunks[slug] || [],
upsertChunks: async (slug: string, chunks: any[]) => { upsertCalls.push({ slug, chunks }); },
});
const result = await runEmbedCore(engine, { stale: true });
// listPages must NOT be called in the SQL-side path.
expect(listPagesCalled).toBe(false);
// One embedBatch call per stale slug (a, b).
expect(totalEmbedCalls).toBe(2);
expect(result.embedded).toBe(3);
expect(result.pages_processed).toBe(2);
// page-b's upsert MUST include the fresh chunk (chunk_index=0) — otherwise
// it would be deleted by the upsertChunks != ALL filter. Critical regression check.
const pageBUpsert = upsertCalls.find(u => u.slug === 'page-b');
expect(pageBUpsert).toBeDefined();
const freshChunkInUpsert = pageBUpsert!.chunks.find((c: any) => c.chunk_index === 0);
expect(freshChunkInUpsert).toBeDefined();
// Fresh chunk has no `embedding` field (preserved via COALESCE in upsertChunks SQL).
expect(freshChunkInUpsert.embedding).toBeUndefined();
// Previously-stale chunks come through WITH a new embedding.
const staleChunkInUpsert = pageBUpsert!.chunks.find((c: any) => c.chunk_index === 1);
expect(staleChunkInUpsert.embedding).toBeDefined();
expect(staleChunkInUpsert.embedding).toBeInstanceOf(Float32Array);
});
test('--stale dry-run: counts stale via countStaleChunks (no listStaleChunks call), no embedBatch or upsertChunks', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
// v0.33.3 cherry-pick contract: dry-run path uses countStaleChunks
// ONLY — it does not call listStaleChunks. The pre-flight count is
// what gets reported; pages_processed stays at 0 because we
// intentionally skip the cursor walk in dry-run.
let listStaleCalled = false;
const upserts: string[] = [];
const engine = mockEngine({
countStaleChunks: async () => 2,
listStaleChunks: async () => { listStaleCalled = true; return []; },
upsertChunks: async (slug: string) => { upserts.push(slug); },
});
const result = await runEmbedCore(engine, { stale: true, dryRun: true });
expect(totalEmbedCalls).toBe(0);
expect(upserts).toEqual([]);
expect(result.would_embed).toBe(2);
// Cheaper dry-run: skips the cursor walk entirely.
expect(listStaleCalled).toBe(false);
expect(result.pages_processed).toBe(0);
expect(result.dryRun).toBe(true);
});
test('--all (non-stale) path is byte-identical: walks listPages and embeds every chunk', async () => {
// Regression guard for the legacy --all path. Behavior must be byte-identical
// to pre-fix: listPages + per-page getChunks + embed every chunk.
const { runEmbedCore } = await import('../src/commands/embed.ts');
let countStaleCalled = false;
let listStaleCalled = false;
const pages = [{ slug: 'a' }, { slug: 'b' }];
const chunksBySlug = new Map<string, any[]>([
['a', [{ chunk_index: 0, chunk_text: 'a', chunk_source: 'compiled_truth', embedded_at: '2026-01-01', token_count: 1 }]],
['b', [{ chunk_index: 0, chunk_text: 'b', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 }]],
]);
const engine = mockEngine({
countStaleChunks: async () => { countStaleCalled = true; return 1; },
listStaleChunks: async () => { listStaleCalled = true; return []; },
listPages: async () => pages,
getChunks: async (slug: string) => chunksBySlug.get(slug) || [],
upsertChunks: async () => {},
});
const result = await runEmbedCore(engine, { all: true });
// --all path must NOT take the new short-circuit.
expect(countStaleCalled).toBe(false);
expect(listStaleCalled).toBe(false);
// Both pages get embedded, regardless of embedded_at — that's the --all contract.
expect(totalEmbedCalls).toBe(2);
expect(result.embedded).toBe(2);
});
});
// ────────────────────────────────────────────────────────────────
// D5: embedBatchWithBackoff retry wrapper — 8 cases per plan
// (D2 jitter, D4 cause-unwrap, D4a maxRetries:0 passthrough,
// D8 abortSignal threading, plus the pure helpers).
// ────────────────────────────────────────────────────────────────
describe('embedBatchWithBackoff (D2/D4/D4a/D8)', () => {
test('case 1: parses "try again in 248ms" form and retries', async () => {
const { embedBatchWithBackoff } = await import('../src/commands/embed.ts');
let calls = 0;
embedBatchBehavior = async () => {
calls++;
if (calls === 1) {
const err = new Error('Rate limit reached. Please try again in 50ms.');
(err as any).cause = { status: 429 };
throw err;
}
return [new Float32Array(1536)];
};
const result = await embedBatchWithBackoff(['x']);
expect(calls).toBe(2);
expect(result).toHaveLength(1);
});
test('case 2: parses "try again in 1.5s" form and retries', async () => {
const { embedBatchWithBackoff, parseRetryDelayMs, RATE_LIMIT_JITTER, RATE_LIMIT_PAD_MS } = await import('../src/commands/embed.ts');
let calls = 0;
embedBatchBehavior = async () => {
calls++;
if (calls === 1) {
const err = new Error('429 — please try again in 0.05s');
(err as any).cause = { status: 429 };
throw err;
}
return [new Float32Array(1536)];
};
const result = await embedBatchWithBackoff(['x']);
expect(calls).toBe(2);
expect(result).toHaveLength(1);
// Pure-helper sanity check on the "s" form path while we're here.
const delay = parseRetryDelayMs('try again in 1.5s', () => 0.5);
// 1.5s = 1500ms + 500ms pad = 2000ms; jitter at rng=0.5 → 1.0 multiplier.
const expected = (1500 + RATE_LIMIT_PAD_MS) * (1 + (0.5 * 2 - 1) * RATE_LIMIT_JITTER);
expect(delay).toBe(Math.floor(expected));
});
test('case 3: unparseable rate-limit message uses RATE_LIMIT_FALLBACK_MS', async () => {
const { parseRetryDelayMs, RATE_LIMIT_FALLBACK_MS, RATE_LIMIT_JITTER } = await import('../src/commands/embed.ts');
// Min delay = fallback × (1 - jitter); max = fallback × (1 + jitter).
const minExpected = Math.floor(RATE_LIMIT_FALLBACK_MS * (1 - RATE_LIMIT_JITTER));
const maxExpected = Math.floor(RATE_LIMIT_FALLBACK_MS * (1 + RATE_LIMIT_JITTER));
for (let i = 0; i < 20; i++) {
const d = parseRetryDelayMs('429 too many requests');
expect(d).toBeGreaterThanOrEqual(minExpected);
expect(d).toBeLessThanOrEqual(maxExpected);
}
});
test('case 4: non-rate-limit error rethrows immediately without retry', async () => {
const { embedBatchWithBackoff } = await import('../src/commands/embed.ts');
let calls = 0;
embedBatchBehavior = async () => {
calls++;
throw new Error('500 internal server error');
};
await expect(embedBatchWithBackoff(['x'])).rejects.toThrow('500 internal server error');
// Single attempt — no retries on non-429.
expect(calls).toBe(1);
});
test('case 5: jitter range — same parsed delay produces non-identical sleeps across runs', async () => {
const { parseRetryDelayMs } = await import('../src/commands/embed.ts');
const samples = new Set<number>();
for (let i = 0; i < 50; i++) {
samples.add(parseRetryDelayMs('try again in 100ms'));
}
// 50 random samples with ±30% jitter should yield many distinct values.
expect(samples.size).toBeGreaterThan(5);
});
test('case 6: wall-clock budget mid-batch wakes the retry sleep and cancels mid-fetch', async () => {
const { embedBatchWithBackoff } = await import('../src/commands/embed.ts');
const controller = new AbortController();
let calls = 0;
embedBatchBehavior = async (_texts, opts) => {
calls++;
// The wrapper MUST pass the abortSignal into the gateway opts.
expect((opts as { abortSignal?: AbortSignal } | undefined)?.abortSignal).toBe(controller.signal);
if (calls === 1) {
const err = new Error('Rate limit reached. Please try again in 5000ms.');
(err as any).cause = { status: 429 };
throw err;
}
return [new Float32Array(1536)];
};
// Fire the budget abort during the retry sleep — abortableSleep should
// wake up early instead of waiting the full 5000ms.
setTimeout(() => controller.abort(), 50);
const t0 = Date.now();
await expect(embedBatchWithBackoff(['x'], { abortSignal: controller.signal })).rejects.toThrow();
const elapsed = Date.now() - t0;
// Should exit within ~200ms, not the 5000ms+ the retry-after would suggest.
expect(elapsed).toBeLessThan(500);
});
test('case 7: AITransientError-shaped wrap with 429 cause triggers retry; 500 cause does not', async () => {
const { embedBatchWithBackoff, detect429FromCause } = await import('../src/commands/embed.ts');
// Pure helper checks first.
expect(detect429FromCause({ cause: { status: 429 } })).toBe(true);
expect(detect429FromCause({ cause: { statusCode: 429 } })).toBe(true);
expect(detect429FromCause({ cause: { status: 500 } })).toBe(false);
expect(detect429FromCause({ status: 500 })).toBe(false);
expect(detect429FromCause(undefined)).toBe(false);
expect(detect429FromCause(null)).toBe(false);
// Deep wrap (defensive — current normalizeAIError wraps once).
expect(detect429FromCause({ cause: { cause: { status: 429 } } })).toBe(true);
// End-to-end: 429 wrapped as AITransientError-like shape → retry.
// Use a small retry-after in the wrapper message so the parsed delay
// is fast (keeps the test under the 5s timeout). The fallback delay
// of 60s would otherwise dominate.
let calls = 0;
embedBatchBehavior = async () => {
calls++;
if (calls === 1) {
// Simulate normalizeAIError wrap: message has a parseable retry-after,
// status only on cause (the structural detection path under test).
const wrapper = new Error('try again in 10ms');
(wrapper as any).cause = { status: 429 };
throw wrapper;
}
return [new Float32Array(1536)];
};
const result = await embedBatchWithBackoff(['x']);
expect(calls).toBe(2);
expect(result).toHaveLength(1);
// 500 wrapped → no retry, rethrow immediately.
embedBatchBehavior = async () => {
const wrapper = new Error('AI transient error');
(wrapper as any).cause = { status: 500 };
throw wrapper;
};
await expect(embedBatchWithBackoff(['x'])).rejects.toThrow('AI transient error');
});
test('case 8: wrapper passes maxRetries:0 through to embedBatch (no SDK retry stack)', async () => {
const { embedBatchWithBackoff } = await import('../src/commands/embed.ts');
embedBatchBehavior = async () => [new Float32Array(1536)];
await embedBatchWithBackoff(['x']);
expect(lastEmbedBatchOpts).toBeDefined();
expect((lastEmbedBatchOpts as { maxRetries?: number }).maxRetries).toBe(0);
});
});
// ────────────────────────────────────────────────────────────────
// D5/D7: embedAllStale sourceId threading — invariant tests
// ────────────────────────────────────────────────────────────────
// ────────────────────────────────────────────────────────────────
// Gap scan: CLI flag wiring + end-to-end budget firing (beyond plan)
// ────────────────────────────────────────────────────────────────
describe('runEmbed CLI flag wiring (--stale --source)', () => {
test('--source <id> on CLI threads sourceId into countStaleChunks', async () => {
let receivedOpts: unknown;
const engine = mockEngine({
countStaleChunks: async (opts: unknown) => {
receivedOpts = opts;
return 0; // short-circuit so we don't hit listStaleChunks
},
});
await runEmbed(engine, ['--stale', '--source', 'media-corpus']);
expect(receivedOpts).toEqual({ sourceId: 'media-corpus' });
});
test('--stale without --source passes undefined opts (back-compat fast path)', async () => {
let receivedOpts: unknown;
const engine = mockEngine({
countStaleChunks: async (opts: unknown) => {
receivedOpts = opts;
return 0;
},
});
await runEmbed(engine, ['--stale']);
expect(receivedOpts).toBeUndefined();
});
});
describe('embedAllStale wall-clock budget end-to-end (D3 + D3a)', () => {
test('GBRAIN_EMBED_TIME_BUDGET_MS=N cuts the outer loop short on stuck workers', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
// Tiny budget: 100ms. Each embed call sleeps 50ms; with budget + multiple
// small batches, the second listStaleChunks call should see the abort
// signal AND the worker loop should not claim further keys.
process.env.GBRAIN_EMBED_TIME_BUDGET_MS = '100';
process.env.GBRAIN_EMBED_CONCURRENCY = '1';
let listCallCount = 0;
let totalRowsReturned = 0;
// Return rows in chunks of 1 so the outer while-loop ticks frequently.
// 10 rows total across 10 "batches"; the budget should kill the loop
// partway through.
const allRows = Array.from({ length: 10 }, (_, i) => ({
slug: `b-${i}`,
chunk_index: 0,
chunk_text: `t${i}`,
chunk_source: 'compiled_truth' as const,
model: null,
token_count: 1,
source_id: 'default',
page_id: i + 1,
}));
const engine = mockEngine({
countStaleChunks: async () => allRows.length,
listStaleChunks: async (opts: { afterPageId?: number } = {}) => {
listCallCount++;
const startIdx = (opts.afterPageId ?? 0); // 0 means start
const idx = allRows.findIndex(r => r.page_id > startIdx);
if (idx === -1) return [];
const row = allRows[idx];
totalRowsReturned++;
return [row];
},
getChunks: async () => [],
upsertChunks: async () => {},
});
// embedBatch takes 80ms per call — budget exhausts after ~1 page.
embedBatchBehavior = async (texts) => {
await new Promise(r => setTimeout(r, 80));
return texts.map(() => new Float32Array(1536));
};
const t0 = Date.now();
const result = await runEmbedCore(engine, { stale: true });
const elapsed = Date.now() - t0;
// Should not have visited all 10 pages.
expect(result.pages_processed).toBeLessThan(10);
// Total wall-clock should be roughly the budget + the time for in-flight
// workers to drain (1 worker × 80ms latency). Generous upper bound: 1500ms.
expect(elapsed).toBeLessThan(1500);
});
});
describe('embedAllStale --source threading (D7)', () => {
test('countStaleChunks receives the sourceId opt', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
let receivedOpts: unknown;
const engine = mockEngine({
countStaleChunks: async (opts: unknown) => {
receivedOpts = opts;
return 0; // short-circuit
},
});
await runEmbedCore(engine, { stale: true, sourceId: 'media-corpus' });
expect(receivedOpts).toEqual({ sourceId: 'media-corpus' });
});
test('countStaleChunks receives undefined opts when --source omitted (back-compat)', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
let receivedOpts: unknown;
const engine = mockEngine({
countStaleChunks: async (opts: unknown) => {
receivedOpts = opts;
return 0;
},
});
await runEmbedCore(engine, { stale: true });
expect(receivedOpts).toBeUndefined();
});
test('listStaleChunks receives the sourceId in opts when running source-scoped', async () => {
const { runEmbedCore } = await import('../src/commands/embed.ts');
let firstCallOpts: unknown;
const stale = [
{ slug: 'p', chunk_index: 0, chunk_text: 'x', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'media-corpus', page_id: 1 },
];
const engine = mockEngine({
countStaleChunks: async () => 1,
listStaleChunks: async (opts: unknown) => {
if (firstCallOpts === undefined) firstCallOpts = opts;
return stale;
},
getChunks: async () => stale.map(s => ({ chunk_index: s.chunk_index, chunk_text: s.chunk_text, chunk_source: s.chunk_source, embedded_at: null, token_count: 1 })),
upsertChunks: async () => {},
});
await runEmbedCore(engine, { stale: true, sourceId: 'media-corpus' });
expect((firstCallOpts as { sourceId?: string }).sourceId).toBe('media-corpus');
});
});
// ────────────────────────────────────────────────────────────────
// Code metadata preservation across re-embed (regression for #769)
// ────────────────────────────────────────────────────────────────
//
// gbrain v0.30.1 and earlier silently clobbered code-chunk metadata
// (language, symbol_name, symbol_type, start_line, end_line,
// parent_symbol_path, doc_comment, symbol_name_qualified) on every
// re-embed pass. The chunker populated those columns at import time,
// but embed.ts loaded chunks via getChunks then mapped them to a
// stripped ChunkInput carrying only 5 fields. upsertChunks then
// OVERWROTE (not COALESCEd) the metadata columns from EXCLUDED, so
// re-embed wiped them to NULL. End result on a real brain: 4875 code
// pages, 47866 chunks, all with NULL language/symbol_name/symbol_type;
// code-def returned 0 hits across every indexed repo.
//
// All three runEmbed paths (--stale autopilot, --all, --slugs) must
// thread metadata through the re-upsert. Tests below assert that the
// engine.upsertChunks call carries the same metadata it loaded.
describe('runEmbed preserves code-chunk metadata across re-embed (regression for #769)', () => {
const fullCodeChunk = {
chunk_index: 0,
chunk_text: '[Java] foo/Bar.java:10-20 method baz',
chunk_source: 'compiled_truth' as const,
embedded_at: null,
token_count: 12,
language: 'java',
symbol_name: 'baz',
symbol_type: 'function',
start_line: 10,
end_line: 20,
parent_symbol_path: ['Bar'],
doc_comment: 'does the thing',
symbol_name_qualified: 'Bar.baz',
};
function metadataOf(chunk: any) {
return {
language: chunk.language,
symbol_name: chunk.symbol_name,
symbol_type: chunk.symbol_type,
start_line: chunk.start_line,
end_line: chunk.end_line,
parent_symbol_path: chunk.parent_symbol_path,
doc_comment: chunk.doc_comment,
symbol_name_qualified: chunk.symbol_name_qualified,
};
}
test('--stale (autopilot path) carries code metadata into upsertChunks', async () => {
const stale = [{
slug: 'code-page',
chunk_index: 0,
chunk_text: fullCodeChunk.chunk_text,
chunk_source: 'compiled_truth',
model: null,
token_count: 12,
}];
let upsertChunkArgs: any[] | null = null;
const engine = mockEngine({
countStaleChunks: async () => 1,
listStaleChunks: async () => stale,
getChunks: async () => [fullCodeChunk],
upsertChunks: async (_slug: string, chunks: any[]) => { upsertChunkArgs = chunks; },
});
await runEmbed(engine, ['--stale']);
expect(upsertChunkArgs).not.toBeNull();
expect(upsertChunkArgs!).toHaveLength(1);
expect(metadataOf(upsertChunkArgs![0])).toEqual(metadataOf(fullCodeChunk));
});
test('--all (full re-embed) carries code metadata into upsertChunks', async () => {
let upsertChunkArgs: any[] | null = null;
const engine = mockEngine({
listPages: async () => [{ slug: 'code-page' }],
getChunks: async () => [fullCodeChunk],
upsertChunks: async (_slug: string, chunks: any[]) => { upsertChunkArgs = chunks; },
});
await runEmbed(engine, ['--all']);
expect(upsertChunkArgs).not.toBeNull();
expect(upsertChunkArgs!).toHaveLength(1);
expect(metadataOf(upsertChunkArgs![0])).toEqual(metadataOf(fullCodeChunk));
});
test('--slugs (per-page embed) carries code metadata into upsertChunks', async () => {
let upsertChunkArgs: any[] | null = null;
const engine = mockEngine({
getPage: async () => ({ slug: 'code-page', compiled_truth: 'x', timeline: '' }),
getChunks: async () => [fullCodeChunk],
upsertChunks: async (_slug: string, chunks: any[]) => { upsertChunkArgs = chunks; },
});
await runEmbed(engine, ['--slugs', 'code-page']);
expect(upsertChunkArgs).not.toBeNull();
expect(upsertChunkArgs!).toHaveLength(1);
expect(metadataOf(upsertChunkArgs![0])).toEqual(metadataOf(fullCodeChunk));
});
});
// ────────────────────────────────────────────────────────────────
// #3507 — `embed --stale` must reproduce the page's STORED
// contextual-retrieval wrapping convention instead of embedding raw
// chunk_text (which silently stripped contextual prefixes on every
// re-embed, including the normal post-model-migration path).
// ────────────────────────────────────────────────────────────────
describe('embed --stale contextual-retrieval wrapping (#3507)', () => {
const wrapChunks = [
{ chunk_index: 0, chunk_text: 'prose chunk', chunk_source: 'compiled_truth', embedded_at: null, token_count: 1 },
{ chunk_index: 1, chunk_text: 'const x = 1;', chunk_source: 'fenced_code', embedded_at: null, token_count: 1 },
];
const wrapStale = [
{ slug: 'wrapped', chunk_index: 0, chunk_text: 'prose chunk', chunk_source: 'compiled_truth' as const, model: null, token_count: 1, source_id: 'default', page_id: 1 },
{ slug: 'wrapped', chunk_index: 1, chunk_text: 'const x = 1;', chunk_source: 'fenced_code' as any, model: null, token_count: 1, source_id: 'default', page_id: 1 },
];
function wrappingHarness(mode: string | null) {
const seen: string[] = [];
const restamps: any[][] = [];
embedBatchBehavior = async (texts: string[]) => {
seen.push(...texts);
return texts.map(() => new Float32Array(1536));
};
const engine = mockEngine({
countStaleChunks: async () => 2,
listStaleChunks: async () => wrapStale,
getPage: async () => ({
slug: 'wrapped',
title: 'Widget Notes',
source_id: 'default',
compiled_truth: 'x',
timeline: '',
contextual_retrieval_mode: mode,
}),
getChunks: async () => wrapChunks,
upsertChunks: async () => {},
updatePageContextualRetrievalState: async (...args: any[]) => { restamps.push(args); },
});
return { engine, seen, restamps };
}
test('title-mode page: stale re-embed wraps prose with the title prefix; fenced_code stays raw', async () => {
const { engine, seen, restamps } = wrappingHarness('title');
const result = await runEmbedCore(engine, { stale: true });
expect(result.embedded).toBe(2);
expect(seen).toContain('<context>Widget Notes\n</context>\nprose chunk');
expect(seen).toContain('const x = 1;');
expect(restamps).toHaveLength(0); // title tier: stamp already honest
});
test('per_chunk_synopsis page: fully re-embedded page restamps to the title tier', async () => {
const { engine, seen, restamps } = wrappingHarness('per_chunk_synopsis');
const result = await runEmbedCore(engine, { stale: true });
expect(result.embedded).toBe(2);
expect(seen).toContain('<context>Widget Notes\n</context>\nprose chunk');
expect(restamps).toHaveLength(1);
const [slug, sourceId, newMode] = restamps[0];
expect(slug).toBe('wrapped');
expect(sourceId).toBe('default');
expect(newMode).toBe('title');
});
test('page with no stored CR mode embeds raw chunk_text (convention preserved)', async () => {
const { engine, seen, restamps } = wrappingHarness(null);
const result = await runEmbedCore(engine, { stale: true });
expect(result.embedded).toBe(2);
expect(seen).toContain('prose chunk');
expect(seen.some((t) => t.startsWith('<context>'))).toBe(false);
expect(restamps).toHaveLength(0);
});
});