Ben Stull
76 lines
2.6 KiB
TypeScript
76 lines
2.6 KiB
TypeScript
import { mkdtempSync, rmSync } from "node:fs";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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import { describe, expect, it } from "vitest";
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import {
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emptyArtifact,
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serializeArtifact,
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type Artifact,
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type Proposal,
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} from "../src/model";
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import { CoauthorStore } from "../src/store";
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const agent = {
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kind: "agent" as const,
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id: "claude",
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agent: { sdk: "@cline/sdk", model: "sonnet", sessionId: "s1" },
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};
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describe("Proposal model (spec §6.3, INV-13)", () => {
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it("serializes proposals with stable field order and survives a round-trip", () => {
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const a = emptyArtifact("docs/x.md");
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a.anchors["a_1"] = {
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fingerprint: { text: "old text", before: "", after: "", lineHint: 0 },
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};
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const p: Proposal = {
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id: "pr_1",
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anchorId: "a_1",
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replacement: "new text",
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author: agent,
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createdAt: "2026-06-10T00:00:00.000Z",
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turnId: "turn-1",
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instruction: "tighten",
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};
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a.proposals.push(p);
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const reloaded = JSON.parse(serializeArtifact(a)) as Artifact;
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expect(reloaded.proposals).toHaveLength(1);
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expect(reloaded.proposals[0]).toEqual(p);
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// optional fields are OMITTED (not null) when absent
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const bare: Proposal = {
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id: "pr_2", anchorId: "a_1", replacement: "r", author: agent,
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createdAt: "2026-06-10T00:00:00.000Z",
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};
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a.proposals.push(bare);
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const again = JSON.parse(serializeArtifact(a)) as Artifact;
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expect("turnId" in again.proposals[1]).toBe(false);
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expect("instruction" in again.proposals[1]).toBe(false);
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// serialization is byte-stable (INV-2)
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expect(serializeArtifact(again)).toBe(serializeArtifact(a));
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});
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});
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describe("CoauthorStore prune with proposals (spec §6.3)", () => {
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it("retains anchors referenced only by proposals; prunes them after removal", () => {
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const dir = mkdtempSync(join(tmpdir(), "cowriting-prune-"));
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try {
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const store = new CoauthorStore(dir);
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store.update("docs/x.md", (a) => {
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a.anchors["a_p"] = {
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fingerprint: { text: "t", before: "", after: "", lineHint: 0 },
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};
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a.proposals.push({
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id: "pr_1", anchorId: "a_p", replacement: "r", author: agent,
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createdAt: "2026-06-10T00:00:00.000Z",
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});
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});
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expect(store.load("docs/x.md")!.anchors["a_p"]).toBeDefined();
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store.update("docs/x.md", (a) => {
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a.proposals = a.proposals.filter((p) => p.id !== "pr_1");
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});
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expect(store.load("docs/x.md")!.anchors["a_p"]).toBeUndefined();
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} finally {
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rmSync(dir, { recursive: true, force: true });
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}
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});
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});
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