wehub-resource-sync
222 lines
8.8 KiB
TypeScript
222 lines
8.8 KiB
TypeScript
import { test, expect } from '../fixtures/base';
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import { ClassroomPage } from '../pages/classroom.page';
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import { createSettingsStorage } from '../fixtures/test-data/settings';
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import { defaultTheme } from '../fixtures/test-data/scene-content';
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/**
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* E2E for #619: interactive scene iframes must NOT reload on remount.
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*
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* The keep-alive iframe is identified by its title `Interactive Scene <id>`.
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* A MutationObserver on the top document records every add/remove of *that*
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* iframe element. The proof of keep-alive: after each remount trigger (Pro mode
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* toggle, scene switch and back) the element is neither removed nor recreated
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* (zero recorded mutations), and the click-counter state it holds is preserved.
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*
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* Note: the slide nav rail also renders a separate, stateless `Interactive
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* Preview` thumbnail iframe that does reload on re-render — a different surface,
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* out of scope here. Scoping the observer to the playback iframe's title keeps
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* the assertion clean of that noise.
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*/
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const TEST_STAGE_ID = 'e2e-iframe-keepalive';
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const INTERACTIVE_SCENE_ID = 'scene-interactive';
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const IFRAME_TITLE = `Interactive Scene ${INTERACTIVE_SCENE_ID}`;
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const SHOTS = 'e2e/__screenshots-619';
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const SETTINGS_STORAGE = createSettingsStorage({ sidebarCollapsed: false });
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const INTERACTIVE_HTML = `<!DOCTYPE html><html><head><meta charset="utf-8"></head>
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<body style="margin:0;font-family:sans-serif;display:flex;align-items:center;justify-content:center;height:100vh;background:#eaf0ff">
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<div style="text-align:center">
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<div style="font-size:14px;color:#556">interactive widget</div>
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<h1 id="count" style="font-size:72px;margin:8px 0;color:#2a3">0</h1>
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<button id="inc" style="font-size:18px;padding:8px 18px">+1</button>
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</div>
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<script>
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var n = 0, c = document.getElementById('count');
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document.getElementById('inc').addEventListener('click', function () { c.textContent = String(++n); });
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</script>
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</body></html>`;
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async function seedDatabase(page: import('@playwright/test').Page) {
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await page.addInitScript((settings) => {
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localStorage.setItem('settings-storage', settings);
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}, SETTINGS_STORAGE);
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await page.goto('/', { waitUntil: 'networkidle' });
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await page.evaluate(
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({ stageId, interactiveId, html, theme }) => {
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return new Promise<void>((resolve, reject) => {
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const request = indexedDB.open('MAIC-Database');
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request.onsuccess = (event) => {
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const db = (event.target as IDBOpenDBRequest).result;
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const tx = db.transaction(['stages', 'scenes', 'stageOutlines'], 'readwrite');
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const now = Date.now();
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tx.objectStore('stages').put({
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id: stageId,
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name: 'Keep-alive test',
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description: '',
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language: 'en-US',
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style: 'professional',
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currentSceneId: interactiveId,
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createdAt: now,
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updatedAt: now,
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});
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tx.objectStore('scenes').put({
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id: interactiveId,
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stageId,
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type: 'interactive',
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title: 'Interactive',
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order: 0,
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content: { type: 'interactive', url: '', html },
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createdAt: now,
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updatedAt: now,
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});
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tx.objectStore('scenes').put({
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id: 'scene-slide',
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stageId,
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type: 'slide',
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title: 'A slide',
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order: 1,
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content: {
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type: 'slide',
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canvas: {
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id: 'slide-1',
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viewportSize: 1000,
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viewportRatio: 0.5625,
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theme,
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elements: [
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{
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type: 'text',
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id: 'el-1',
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content: 'A slide',
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left: 50,
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top: 50,
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width: 900,
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height: 100,
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},
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],
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},
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},
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createdAt: now,
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updatedAt: now,
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});
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tx.objectStore('stageOutlines').put({
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stageId,
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outlines: [],
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createdAt: now,
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updatedAt: now,
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});
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tx.oncomplete = () => {
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db.close();
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resolve();
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};
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tx.onerror = () => reject(tx.error);
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};
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request.onerror = () => reject(request.error);
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});
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},
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{
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stageId: TEST_STAGE_ID,
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interactiveId: INTERACTIVE_SCENE_ID,
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html: INTERACTIVE_HTML,
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theme: defaultTheme,
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},
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);
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}
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const keepAliveMutations = (page: import('@playwright/test').Page) =>
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page.evaluate(() => (window as unknown as { __kaMut: string[] }).__kaMut.slice());
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const resetMutations = (page: import('@playwright/test').Page) =>
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page.evaluate(() => {
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(window as unknown as { __kaMut: string[] }).__kaMut.length = 0;
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});
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test.describe('#619 interactive iframe keep-alive', () => {
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test('iframe survives Pro-mode toggle and scene switch without reloading', async ({ page }) => {
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// Record add/remove of the keep-alive iframe (by title) in the top document.
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await page.addInitScript((title) => {
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if (window.top !== window.self) return;
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(window as unknown as { __kaMut: string[] }).__kaMut = [];
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const log = (window as unknown as { __kaMut: string[] }).__kaMut;
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const isTarget = (n: Node) =>
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n instanceof HTMLIFrameElement && n.getAttribute('title') === title;
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const mo = new MutationObserver((muts) => {
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for (const m of muts) {
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m.addedNodes.forEach((n) => isTarget(n) && log.push('ADD'));
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m.removedNodes.forEach((n) => isTarget(n) && log.push('REM'));
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}
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});
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document.addEventListener('DOMContentLoaded', () =>
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mo.observe(document.body, { childList: true, subtree: true }),
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);
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}, IFRAME_TITLE);
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await seedDatabase(page);
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const classroom = new ClassroomPage(page);
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await classroom.goto(TEST_STAGE_ID);
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await classroom.waitForLoaded();
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const iframeEl = page.locator(`iframe[title="${IFRAME_TITLE}"]`);
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const frame = page.frameLocator(`iframe[title="${IFRAME_TITLE}"]`);
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const count = frame.locator('#count');
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// Initial render. Build in-iframe state that only survives a true keep-alive.
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await expect(iframeEl).toBeVisible({ timeout: 15_000 });
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await expect(count).toHaveText('0');
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await frame.locator('#inc').click();
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await frame.locator('#inc').click();
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await frame.locator('#inc').click();
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await expect(count).toHaveText('3');
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await page.screenshot({ path: `${SHOTS}/01-interactive-counter-3.png`, fullPage: true });
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// Ignore any initial mount churn (incl. dev StrictMode); from here on the
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// keep-alive iframe must not be added or removed again.
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await resetMutations(page);
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// `.first()` because the ~280ms mode cross-fade briefly mounts both chrome
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// layers (each with its own Pro switch).
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// --- Trigger A: Pro mode toggle (edit chrome remounts the placeholder) ---
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await page.getByRole('switch').first().click();
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// Since #777 the interactive iframe stays VISIBLE in edit mode — the editor
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// agent ("Edit with AI") fixes interactive HTML, so the teacher must see the
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// live page while editing. The keep-alive proof is that it is neither
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// unmounted nor reloaded: the in-iframe counter state survives the toggle.
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await expect(iframeEl).toBeVisible();
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await expect(count).toHaveText('3'); // state preserved across the mode toggle
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await page.screenshot({ path: `${SHOTS}/02-pro-mode.png`, fullPage: true });
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await page.getByRole('switch').first().click();
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await expect(iframeEl).toBeVisible(); // back to playback
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await expect(count).toHaveText('3'); // state preserved → no reload
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// Let the ~280ms mode cross-fade fully settle: the outgoing chrome's
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// placeholder cleanup fires late, and a non-owner-checked release would hide
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// the iframe here (the blank-on-return regression). It must stay visible.
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await page.waitForTimeout(600);
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await expect(iframeEl).toBeVisible();
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await expect(count).toHaveText('3');
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await page.screenshot({ path: `${SHOTS}/03-back-from-pro.png`, fullPage: true });
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// --- Trigger B: scene switch away and back (placeholder unmount/remount) ---
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await classroom.clickScene(1); // slide
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await expect(page.getByRole('heading', { name: 'A slide' })).toBeVisible();
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await expect(iframeEl).toBeHidden();
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await classroom.clickScene(0); // back to interactive
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await expect(iframeEl).toBeVisible();
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await expect(count).toHaveText('3'); // state preserved → no reload
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await page.screenshot({ path: `${SHOTS}/04-back-from-scene-switch.png`, fullPage: true });
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// The keep-alive iframe element was never removed or recreated across either
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// remount trigger — the document (and its in-iframe state) was preserved.
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expect(await keepAliveMutations(page)).toEqual([]);
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});
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});
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