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/**
* @vitest-environment jsdom
*/
import "fake-indexeddb/auto";
import { afterEach, beforeEach, describe, expect, it } from "vitest";
import { CardState, db, Rating } from "../db/index";
import {
localCardRepository,
localDeckRepository,
localReviewLogRepository,
} from "../db/repositories";
import { syncQueue } from "./queue";
import { submitReviewLocal, undoReviewLocal } from "./scheduler";
async function clearDb() {
await db.decks.clear();
await db.cards.clear();
await db.reviewLogs.clear();
await db.noteTypes.clear();
await db.noteFieldTypes.clear();
await db.notes.clear();
await db.noteFieldValues.clear();
}
async function seedDeck() {
const deck = await localDeckRepository.create({
userId: "user-1",
name: "Test Deck",
description: null,
defaultNoteTypeId: null,
});
await localDeckRepository.markSynced(deck.id, 1);
return deck;
}
async function seedSyncedCard(deckId: string) {
const card = await localCardRepository.create({
deckId,
noteId: "note-1",
isReversed: false,
front: "front",
back: "back",
});
await localCardRepository.markSynced(card.id, 1);
return card;
}
describe("submitReviewLocal", () => {
beforeEach(async () => {
await clearDb();
localStorage.clear();
});
afterEach(async () => {
await clearDb();
localStorage.clear();
});
it("updates card scheduling and creates a review log in IndexedDB", async () => {
const deck = await seedDeck();
const card = await seedSyncedCard(deck.id);
const result = await submitReviewLocal({
cardId: card.id,
rating: Rating.Good,
durationMs: 5000,
});
expect(result.card.reps).toBe(1);
expect(result.card.lastReview).toBeInstanceOf(Date);
expect(result.card._synced).toBe(false);
expect(result.reviewLogId).toBeDefined();
const logs = await localReviewLogRepository.findByCardId(card.id);
expect(logs).toHaveLength(1);
expect(logs[0]?.rating).toBe(Rating.Good);
expect(logs[0]?.userId).toBe(deck.userId);
expect(logs[0]?.durationMs).toBe(5000);
expect(logs[0]?._synced).toBe(false);
});
it("returns the previous card snapshot for undo", async () => {
const deck = await seedDeck();
const card = await seedSyncedCard(deck.id);
const result = await submitReviewLocal({
cardId: card.id,
rating: Rating.Again,
durationMs: 3000,
});
expect(result.prevCard.reps).toBe(0);
expect(result.prevCard.state).toBe(CardState.New);
});
it("queues 5 offline reviews and exposes them as pending changes", async () => {
const deck = await seedDeck();
const cards = await Promise.all(
Array.from({ length: 5 }, () => seedSyncedCard(deck.id)),
);
for (const card of cards) {
await submitReviewLocal({
cardId: card.id,
rating: Rating.Good,
durationMs: 1000,
});
}
const pending = await syncQueue.getPendingChanges();
expect(pending.cards.filter((c) => !c._synced)).toHaveLength(5);
expect(pending.reviewLogs).toHaveLength(5);
});
it("notifies sync queue listeners after each review", async () => {
const deck = await seedDeck();
const card = await seedSyncedCard(deck.id);
const counts: number[] = [];
const unsub = syncQueue.subscribe((state) => {
counts.push(state.pendingCount);
});
await submitReviewLocal({
cardId: card.id,
rating: Rating.Good,
durationMs: 1000,
});
unsub();
// Card was synced=true before; now both card and reviewLog are unsynced.
expect(counts.at(-1)).toBe(2);
});
it("throws when the card is missing from local DB", async () => {
await expect(
submitReviewLocal({
cardId: "missing-card",
rating: Rating.Good,
durationMs: 1000,
}),
).rejects.toThrow(/Card not found/);
});
});
describe("undoReviewLocal", () => {
beforeEach(async () => {
await clearDb();
localStorage.clear();
});
afterEach(async () => {
await clearDb();
localStorage.clear();
});
it("restores the card and removes the review log", async () => {
const deck = await seedDeck();
const card = await seedSyncedCard(deck.id);
const result = await submitReviewLocal({
cardId: card.id,
rating: Rating.Good,
durationMs: 1000,
});
await undoReviewLocal({
prevCard: result.prevCard,
reviewLogId: result.reviewLogId,
});
const restored = await localCardRepository.findById(card.id);
expect(restored?.reps).toBe(0);
expect(restored?.state).toBe(CardState.New);
const logs = await localReviewLogRepository.findByCardId(card.id);
expect(logs).toHaveLength(0);
});
});
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