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// tab-persistence.test.mjs — TDD tests for main-tab localStorage persistence
//
// Run with: node --test web/test/tab-persistence.test.mjs
import { describe, it, beforeEach } from 'node:test';
import assert from 'node:assert/strict';
// ── localStorage mock ──────────────────────────────────────────────────────────
// Must be set up before importing app.js so the module sees the global.
const store = new Map();
globalThis.localStorage = {
getItem: (k) => store.has(k) ? store.get(k) : null,
setItem: (k, v) => store.set(k, String(v)),
removeItem: (k) => store.delete(k),
clear: () => store.clear(),
};
import { getActiveMainTab, setActiveMainTab } from '../app.js';
describe('getActiveMainTab', () => {
beforeEach(() => store.clear());
it('returns "queue" when localStorage has no stored value', () => {
assert.equal(getActiveMainTab(), 'queue');
});
it('returns the tab name stored by setActiveMainTab', () => {
setActiveMainTab('settings');
assert.equal(getActiveMainTab(), 'settings');
});
it('returns "queue" after localStorage value is removed', () => {
setActiveMainTab('stats');
localStorage.removeItem('activeMainTab');
assert.equal(getActiveMainTab(), 'queue');
});
it('reflects the most recent setActiveMainTab call', () => {
setActiveMainTab('stats');
setActiveMainTab('running');
assert.equal(getActiveMainTab(), 'running');
});
});
describe('setActiveMainTab', () => {
beforeEach(() => store.clear());
it('writes the tab name to localStorage under key "activeMainTab"', () => {
setActiveMainTab('drops');
assert.equal(localStorage.getItem('activeMainTab'), 'drops');
});
it('overwrites a previously stored tab', () => {
setActiveMainTab('queue');
setActiveMainTab('interrupted');
assert.equal(localStorage.getItem('activeMainTab'), 'interrupted');
});
});
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