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a tiny pet with a GPT-2 brain, living in your browser
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162import test from "node:test";import assert from "node:assert/strict";import { readFileSync } from "node:fs";import { parseSave, VERSION } from "../web/app/save-format.ts";import { store } from "../web/app/store.ts";import { KEY, load, save, cancelSave } from "../web/app/storage.ts";const raw = readFileSync(new URL("fixtures/save-v1.json", import.meta.url), "utf8");const original = JSON.parse(raw);
test("the previous vanilla app's browser save round-trips without a migration", () => { assert.equal(VERSION, 1); assert.deepEqual(parseSave(raw), original);});test("missing optional top-level fields are supplied without losing older settings", () => { const older = structuredClone(original); delete older.history; delete older.wokeAt; const loaded = parseSave(JSON.stringify(older)); assert.deepEqual(loaded.history, {}); assert.equal(loaded.wokeAt, 0); assert.deepEqual(loaded.settings, { chatter: true }); assert.equal(loaded.pet.name, "Mochi");});test("corrupt, incomplete and newer saves are rejected", () => { assert.throws(() => parseSave("not json")); assert.throws(() => parseSave('{"v":1}'), /missing/); assert.throws( () => parseSave(JSON.stringify({ ...original, v: 99 })), (error) => error.newer === true, );});test("bad saves, reset and loss of ownership block debounced writes", async () => { const entries = new Map([[KEY, JSON.stringify({ ...original, v: 99 })]]); const storage = { getItem: (k) => entries.get(k) ?? null, setItem: (k, v) => entries.set(k, v) }; Object.defineProperty(globalThis, "localStorage", { value: storage, configurable: true }); const untouched = entries.get(KEY); store.tabOwned = true; store.resetting = false; store.state = load(); save(); await new Promise((resolve) => setTimeout(resolve, 240)); assert.equal(store.badEgg.newer, true); assert.equal(entries.get(KEY), untouched); store.badEgg = null; store.state = parseSave(raw); save(); store.tabOwned = false; await new Promise((resolve) => setTimeout(resolve, 240)); assert.equal(entries.get(KEY), untouched); store.tabOwned = true; store.resetting = true; save(); await new Promise((resolve) => setTimeout(resolve, 240)); assert.equal(entries.get(KEY), untouched); store.resetting = false; save(); await new Promise((resolve) => setTimeout(resolve, 240)); assert.deepEqual(JSON.parse(entries.get(KEY)), original); cancelSave(); delete globalThis.localStorage;});