Steffen Becker
ef8d219cdd
One version every five minutes goes into an IndexedDB store, pictures inline, and both file menus list them by time; a click puts that text back and leaves the page setup, the styles and the zones alone. The browser copy is one document deep, so a bad edit had nothing behind it.
55 lines
2.0 KiB
TypeScript
55 lines
2.0 KiB
TypeScript
import { describe, it, expect, vi } from 'vitest';
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// A two-call IndexedDB in memory — what openDb/idbRequest (storage/idb.ts) ask for.
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function fakeIndexedDb() {
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const data = new Map<number, unknown>();
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const req = (result: unknown) => {
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const r: Record<string, unknown> = { result };
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queueMicrotask(() => (r.onsuccess as (() => void) | undefined)?.());
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return r;
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};
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const store = {
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put: (v: unknown, k: number) => { data.set(k, v); return req(undefined); },
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get: (k: number) => req(data.get(k)),
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getAllKeys: () => req([...data.keys()]),
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delete: (k: number) => { data.delete(k); return req(undefined); },
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};
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const db = { transaction: () => ({ objectStore: () => store }), createObjectStore: () => {}, close: () => {} };
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return {
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data,
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open: () => {
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const r: Record<string, unknown> = { result: db };
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queueMicrotask(() => {
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(r.onupgradeneeded as (() => void) | undefined)?.();
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(r.onsuccess as (() => void) | undefined)?.();
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});
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return r;
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},
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};
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}
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describe('the autosave keeps a few earlier versions', () => {
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it('takes one every few minutes and holds on to the newest three', async () => {
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const idb = fakeIndexedDb();
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vi.stubGlobal('indexedDB', { open: idb.open });
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const { keepSnapshot, snapshots, readSnapshot } = await import('../../src/lib/storage/snapshots.svelte');
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const now = vi.spyOn(Date, 'now');
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const at = (min: number) => 1_800_000_000_000 + min * 60_000;
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now.mockReturnValue(at(0));
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await keepSnapshot({ type: 'doc', v: 1 });
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now.mockReturnValue(at(1));
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await keepSnapshot({ type: 'doc', v: 2 }); // a minute on: still the same version
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expect(snapshots()).toEqual([at(0)]);
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for (const m of [6, 12, 18]) {
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now.mockReturnValue(at(m));
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await keepSnapshot({ type: 'doc', v: m });
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}
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expect(snapshots()).toEqual([at(18), at(12), at(6)]);
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expect(idb.data.size).toBe(3);
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expect(await readSnapshot(at(12))).toEqual({ type: 'doc', v: 12 });
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expect(await readSnapshot(at(0))).toBeNull();
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});
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});
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