Ben Stull
55 lines
2.5 KiB
TypeScript
55 lines
2.5 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import { buildFingerprint, resolve } from "../src/anchorer";
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import { applyChange, type LiveSpan } from "../src/attributionTracker";
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import type { Provenance } from "../src/model";
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const HUMAN: Provenance = { kind: "human", id: "ben" };
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const DOC = "intro\nClaude wrote this sentence here.\noutro\n";
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function liveSpan(): LiveSpan {
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const start = DOC.indexOf("Claude wrote this sentence");
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return {
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id: "at_1", start, end: start + "Claude wrote this sentence".length,
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author: { kind: "agent", id: "claude", agent: { sdk: "@cline/sdk", model: "sonnet", sessionId: "r1" } },
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createdAt: "2026-06-10T00:00:00.000Z",
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};
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}
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describe("attribution persistence decision logic (SLICE-4, spec §6.5 PUC-4)", () => {
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it("save → reload: fingerprint built from the live span resolves to the same range", () => {
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const s = liveSpan();
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const fp = buildFingerprint(DOC, { start: s.start, end: s.end });
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expect(resolve(DOC, fp)).toEqual({ start: s.start, end: s.end });
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});
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it("external edit above: fingerprint re-resolves at the moved range", () => {
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const s = liveSpan();
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const fp = buildFingerprint(DOC, { start: s.start, end: s.end });
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const edited = "a new line\n" + DOC;
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const moved = edited.indexOf("Claude wrote this sentence");
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expect(resolve(edited, fp)).toEqual({ start: moved, end: moved + (s.end - s.start) });
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});
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it("anchored text mangled: orphaned, never guessed (INV-1/INV-6)", () => {
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const s = liveSpan();
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const fp = buildFingerprint(DOC, { start: s.start, end: s.end });
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const mangled = DOC.replace("Claude wrote this sentence", "Someone rewrote everything");
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expect(resolve(mangled, fp)).toBe("orphaned");
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});
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it("in-session edits keep the live span fingerprint-able (tracker → anchorer round trip)", () => {
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let spans = [liveSpan()];
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let doc = DOC;
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const insertAt = DOC.indexOf("intro") + "intro".length;
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const inserted = " (note)";
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doc = doc.slice(0, insertAt) + inserted + doc.slice(insertAt);
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spans = applyChange(spans, { start: insertAt, end: insertAt, newLength: inserted.length }, HUMAN, {
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newId: () => "n1", now: () => "2026-06-10T01:00:00.000Z",
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});
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const agent = spans.find((x) => x.author.kind === "agent")!;
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expect(doc.slice(agent.start, agent.end)).toBe("Claude wrote this sentence");
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const fp = buildFingerprint(doc, { start: agent.start, end: agent.end });
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expect(resolve(doc, fp)).toEqual({ start: agent.start, end: agent.end });
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});
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});
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