Files
learnharness/tests/clusters.test.ts
T
amosblomqvist d1b46132b9 Wave 7 close-out: the embedding ledger seam dies; notes birth via mapping lines
Part 1 — the ledger + remnants interlude (master-dispatched, owner ruling
2026-09-23: nothing configures the graph beyond chat models):

- The embedding ledger surface is gone: readEmbeddings/writeEmbeddings
  ports, the EmbeddingsLedger contract, EMBEDDINGS_FILE (config, store
  impls, graphRevision source list), and graph-deletion's vector-pruning
  step. On-disk data files stay untouched (inert history).
- The extraction embedder seam dies wholesale: ExtractionPipelineDeps
  drops the embedder dep (chat-handler + backfill/import-notes stubs go
  with it), the 'embedding' phase leaves ExtractionPhase, the usage
  capture/persist helpers die, and stages.embedding leaves
  ExtractionRunUsage (historical records keep their shape — reads are
  lenient). Extraction is two stages again, like the local-embedder era.
- Consumer-less remnants: latestQuizOutcomes + QUIZ_EVENT_KINDS,
  clusterContentId, matchClusterLabelings + Community + ClusterLabeling,
  the readClusterLabels/appendClusterLabel port seams + store impls +
  LEDGER_FILES.clusterLabels. NamingRunUsage/readNamingRuns STAY
  (standing ruling — the cost pill renders historical naming spend);
  clusterHue + MIN_CLUSTER_SIZE stay (live).
- The 'labeler' role dies: BACKGROUND_MODEL_ROLES, ROLE_SLOT, ModelRole,
  the catalog pin projections, and the UI roster strings. RolePins keys
  shrink with the union.

The notes birth fallback (owner-approved 2026-09-23, surfaced by the
interlude's live smoke: production notes imports create provenance-EMPTY
nodes (importNotes passes messages: null — the file's anchor is the
mapping line), so the provenance-only birth rule left every imported
file unclustered and invisible to the prober's session list, against the
locked file-birth ruling. A provenance-empty node now births under its
FIRST mapping line's chatId (ledger order); only notes-born nodes ever
hit the fallback (chat nodes always carry provenance; a re-encountered
node's link-append re-opens the provenance rule). Deletion-safe: mapping
lines of deleted chats are stripped alongside their provenance.

Live-verified on port 3004: a fresh notes import clusters under its
src_ id with the file path as the label, end to end with no embedder.

845/845 tests, typecheck/lint/build green.
EOF
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2026-09-23 15:37:34 +03:00

27 lines
1.1 KiB
TypeScript

/**
* Cluster presentation-rule tests. Wave 7 killed the semantic detection
* AND the LLM label matcher (birth-session clusters, session-name labels —
* core/session-clusters.ts has its own suite); what remains pinned here
* is the render threshold and the hull-color spread the UI leans on.
*/
import { strict as assert } from "node:assert";
import { describe, test } from "node:test";
import { MIN_CLUSTER_SIZE } from "../src/core/clusters.ts";
import { clusterHue } from "../components/cluster-geometry.ts";
describe("MIN_CLUSTER_SIZE", () => {
test("is 3 (the render threshold — below this, no hull)", () => {
assert.equal(MIN_CLUSTER_SIZE, 3);
});
});
describe("clusterHue", () => {
test("is stable per id and spreads", () => {
// Same id → same hue, always; different ids → usually different hues.
assert.equal(clusterHue("cluster-a"), clusterHue("cluster-a"));
const hues = new Set<number>();
for (let i = 0; i < 40; i++) hues.add(clusterHue(`cluster-${i}`));
assert.ok(hues.size > 20, `expected spread, got ${hues.size} distinct hues for 40 ids`);
for (const h of hues) assert.ok(h >= 0 && h < 360);
});
});