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test(story-mode): frontend overlay test in JSDOM, every scene drawn in every shape
Runs the real story-mode.js against pages the real server core builds from invented transcripts: panels, captions, balloons, the turn picker, the Director's cut wire, file and diff clicks with their line numbers, output links through the terminal's own path matcher, a live refresh that keeps existing panels' clocks, activity filtering, Escape one layer per press, teardown, error notes and the setting switch. A permissive fake 2D context lets every scene draw every panel kind across its whole animation, at four sizes, in both reading levels, without throwing. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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/**
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* @fileoverview Frontend test for story-mode.js (Story Mode overlay). Builds a JSDOM window in-test
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* (like admin-ui.test.ts), evaluates the real module, and feeds it pages built by the real server
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* core from invented transcripts (test/story-fixtures.ts). Canvas 2D is a permissive fake, so every
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* scene's drawing code runs: a scene that throws for some panel shape fails here, not in a browser.
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*/
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import { readFileSync } from 'node:fs';
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import { JSDOM } from 'jsdom';
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import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
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import { buildStoryPage, buildStoryTurns, createStoryReducer, summarizeTurns } from '../src/story-mode.js';
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import type { StoryPage, StoryPanel } from '../src/types/story.js';
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import { bash, demoTurn, end, prompt, read, resetClock, said } from './story-fixtures.js';
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const STORY_JS = readFileSync(new URL('../src/web/public/story-mode.js', import.meta.url), 'utf-8');
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// The real path matcher (findFilePathLinks / resolveLinkedFilePath) the terminal uses.
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const CONSTANTS_JS = readFileSync(new URL('../src/web/public/constants.js', import.meta.url), 'utf-8');
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const SID = 'session-0001-abcdef';
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type Win = Window & typeof globalThis & Record<string, any>; // eslint-disable-line @typescript-eslint/no-explicit-any
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function storyOf(lines: unknown[]) {
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const reducer = createStoryReducer();
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const turns = buildStoryTurns(lines.flatMap((l) => reducer.reduce(l)));
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return {
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supported: true,
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turns: summarizeTurns(turns),
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page: turns.length ? buildStoryPage(turns[turns.length - 1]) : null,
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};
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}
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/** A 2D context that accepts every call; measureText answers a plausible width. */
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function fakeContext() {
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const target: Record<string, unknown> = {
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measureText: (text: string) => ({ width: String(text).length * 6 }),
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};
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return new Proxy(target, {
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get(t, key) {
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if (key in t) return t[key as string];
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return () => undefined;
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},
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set(t, key, value) {
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t[key as string] = value;
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return true;
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},
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});
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}
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let dom: JSDOM;
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let win: Win;
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let app: Record<string, any>; // eslint-disable-line @typescript-eslint/no-explicit-any
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let responses: Array<{ status: number; body: unknown }>;
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let calls: string[];
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function boot(initial: unknown) {
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dom = new JSDOM(
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`<!doctype html><body>
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<button class="btn-story-header btn-story-header--hidden"></button>
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<div class="file-preview-overlay" id="filePreviewOverlay"></div>
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<div class="folder-grid-overlay" id="folderGridOverlay"></div>
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</body>`,
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{ url: 'http://localhost/', runScripts: 'outside-only', pretendToBeVisual: true }
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);
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win = dom.window as unknown as Win;
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win.HTMLCanvasElement.prototype.getContext = (() => fakeContext()) as never;
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win.ResizeObserver = class {
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observe() {}
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unobserve() {}
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disconnect() {}
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} as never;
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win.IntersectionObserver = class {
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observe() {}
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unobserve() {}
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disconnect() {}
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} as never;
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win.matchMedia = ((q: string) => ({
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matches: false,
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media: q,
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addEventListener() {},
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removeEventListener() {},
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})) as never;
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win.eval(CONSTANTS_JS);
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win.eval('class CodemanApp {}; window.CodemanApp = CodemanApp;');
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win.eval(STORY_JS);
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responses = [{ status: 200, body: { success: true, data: initial } }];
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calls = [];
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app = Object.create(win.CodemanApp.prototype);
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Object.assign(app, {
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activeSessionId: SID,
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sessions: new Map([[SID, { name: 'demo-shop', workingDir: '/work/demo-shop' }]]),
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loadAppSettingsFromStorage: () => ({ showStoryButton: true }),
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getDefaultSettings: () => ({}),
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showToast: vi.fn(),
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openFilePreview: vi.fn(),
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closeFilePreview: vi.fn(() => win.document.getElementById('filePreviewOverlay')!.classList.remove('visible')),
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filePreviewEdit: null,
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_api: async (path: string) => {
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calls.push(path);
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const next = responses.length > 1 ? responses.shift()! : responses[0];
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return { ok: next.status < 300, status: next.status, headers: { get: () => null }, json: async () => next.body };
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},
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});
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}
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const settle = async (n = 6) => {
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for (let i = 0; i < n; i++) await new Promise((r) => setTimeout(r, 0));
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};
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const $ = (sel: string) => win.document.querySelector(sel) as HTMLElement | null;
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const $$ = (sel: string) => [...win.document.querySelectorAll(sel)] as HTMLElement[];
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/** Panels have no layout in JSDOM; give them a size so scenes draw and click regions exist. */
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function sizeAndDraw() {
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for (const rt of app._story.panels) {
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rt.w = 600;
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rt.h = 270;
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rt.dpr = 1;
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rt.canvas.width = 600;
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rt.canvas.height = 270;
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rt.bgKey = '';
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app._storyDrawPanel(rt);
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}
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}
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const press = (key: string) =>
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win.dispatchEvent(new win.KeyboardEvent('keydown', { key, bubbles: true, cancelable: true }));
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beforeEach(() => resetClock());
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afterEach(() => {
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app?.closeStoryMode?.();
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dom?.window.close();
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});
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describe('story-mode.js overlay', () => {
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it('draws the newest turn: panels, captions, balloons, turn picker', async () => {
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boot(storyOf([prompt('first job'), said('Done.'), end(2000), ...demoTurn()]));
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app.openStoryMode(SID);
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await settle();
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expect(calls).toEqual([`/api/sessions/${SID}/story`]);
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expect($$('.story-panel').map((p) => p.dataset.kind)).toEqual([
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'mission',
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'investigate',
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'plan',
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'backup',
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'loop',
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'save',
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'complete',
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]);
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expect($('.story-panel[data-kind="mission"] .story-balloon')!.textContent).toBe(
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'The checkout button does nothing on phones. Can you fix it?'
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);
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expect($('.story-panel[data-kind="mission"] .story-balloon')!.className).toContain('story-balloon--you');
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expect($('.story-panel[data-kind="investigate"] .story-cap-story')!.textContent).toBe(
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'Claude reads 2 files to find its way around.'
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);
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expect($('.story-splash-title')!.textContent).toBe('Mission complete!');
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expect($$('.story-turns option').map((o) => o.textContent)).toEqual([
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'1. first job',
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'2. The checkout button does nothing on phones. Can you fix it?',
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]);
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expect(($('.story-prev') as HTMLButtonElement).disabled).toBe(false);
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expect(($('.story-next') as HTMLButtonElement).disabled).toBe(true);
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expect($('.story-bar .story-live')!.hidden).toBe(true);
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expect($('.story-pencils')).toBeNull();
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expect($('.story-note')!.hidden).toBe(true);
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});
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it("the Director's cut shows one wire row per event and the tool captions", async () => {
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const data = storyOf(demoTurn());
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boot(data);
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app.openStoryMode(SID);
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await settle();
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app._storySetDirector(true);
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expect($('.story-overlay')!.classList.contains('is-director')).toBe(true);
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expect($$('.story-ev')).toHaveLength((data.page as StoryPage).events.length);
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expect($$('.story-wire-group')[0].textContent).toBe('Panel 1 · The mission');
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expect($('.story-panel[data-kind="investigate"] .story-cap-dir')!.textContent).toBe('Read ×2 · Bash');
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});
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it('a file card opens the file preview; the code page opens the diff with real line numbers', async () => {
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boot(storyOf(demoTurn()));
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app.openStoryMode(SID);
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await settle();
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sizeAndDraw();
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const card = $$('.story-panel[data-kind="investigate"] .story-hit').find(
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(b) => b.getAttribute('aria-label') === 'Open CheckoutButton.tsx'
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);
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expect(card).toBeTruthy();
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card!.click();
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expect(app.openFilePreview).toHaveBeenCalledWith('/work/demo-shop/src/checkout/CheckoutButton.tsx', SID);
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const page = $$('.story-panel[data-kind="loop"] .story-hit').find(
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(b) => b.getAttribute('aria-label') === "See Claude's changes"
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);
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page!.click();
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expect($('.story-drawer')!.hidden).toBe(false);
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expect($('.story-drawer-kind')!.textContent).toBe('Diff');
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expect($$('.story-df')).toHaveLength(2);
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// The first hunk starts at line 10 in both files: context 10/10, an added line at new 11, context 11/12.
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const rows = $$('.story-df')[0].querySelectorAll('.story-ln:not(.story-ln--hunk)');
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expect([...rows].map((r) => [...r.querySelectorAll('.story-ln-no')].map((n) => n.textContent))).toEqual([
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['10', '10'],
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['', '11'],
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['11', '12'],
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]);
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($$('.story-df')[0].querySelector('.story-btn-s') as HTMLElement).click();
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expect(app.openFilePreview).toHaveBeenLastCalledWith('/work/demo-shop/src/styles/banner.css', SID);
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});
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it('the test board opens the output, with paths in it as links', async () => {
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boot(
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storyOf([
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prompt('go'),
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...bash('b1', 'npm test', 'Run tests', 'FAIL src/a.test.ts:12\n Tests 1 failed | 3 passed (4)', true),
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end(1000),
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])
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);
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app.openStoryMode(SID);
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await settle();
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sizeAndDraw();
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$('.story-panel[data-kind="check"] .story-hit')!.click();
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expect($('.story-drawer-kind')!.textContent).toBe('Output');
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const link = $('.story-drawer .story-pre .story-link');
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expect(link!.textContent).toBe('src/a.test.ts');
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link!.click();
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expect(app.openFilePreview).toHaveBeenLastCalledWith('/work/demo-shop/src/a.test.ts', SID);
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});
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it('a live refresh adds panels with an entrance and keeps the clocks of the ones already there', async () => {
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const lines = [prompt('go'), ...read('r1', '/w/a.ts')];
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boot(storyOf(lines));
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app.openStoryMode(SID);
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await settle();
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expect($$('.story-panel').map((p) => p.dataset.kind)).toEqual(['mission', 'investigate']);
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expect($('.story-pencils')).toBeTruthy();
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expect($('.story-bar .story-live')!.hidden).toBe(false);
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const first = app._story.panels[1];
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first.clock = 500;
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responses = [
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{
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status: 200,
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body: {
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success: true,
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data: storyOf([...lines, ...bash('b1', 'npm test', 'Run tests', ' Tests 4 passed (4)'), end(9000)]),
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},
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},
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];
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await app._storyRefresh();
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await settle();
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expect($$('.story-panel').map((p) => p.dataset.kind)).toEqual(['mission', 'investigate', 'check', 'complete']);
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expect(app._story.panels[1]).toBe(first);
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expect(first.clock).toBeGreaterThanOrEqual(500); // kept (and still running), never restarted
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expect($('.story-panel[data-kind="check"]')!.classList.contains('story-fresh')).toBe(true);
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expect($('.story-panel[data-kind="investigate"]')!.classList.contains('story-fresh')).toBe(false);
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expect($('.story-pencils')).toBeNull();
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});
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it('activity for this session refreshes, activity for another does not', async () => {
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vi.useFakeTimers();
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try {
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boot(storyOf(demoTurn()));
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app.openStoryMode(SID);
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await vi.advanceTimersByTimeAsync(10);
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calls.length = 0;
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app._storyOnActivity({ data: JSON.stringify({ sessionId: 'someone-else' }) });
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await vi.advanceTimersByTimeAsync(1000);
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expect(calls).toEqual([]);
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app._storyOnActivity({ data: JSON.stringify({ sessionId: SID }) });
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app._storyOnActivity({ data: JSON.stringify({ sessionId: SID }) });
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await vi.advanceTimersByTimeAsync(1000);
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expect(calls).toEqual([`/api/sessions/${SID}/story`]);
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} finally {
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vi.useRealTimers();
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}
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});
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it('Escape closes one layer per press: file preview, then drawer, then the overlay', async () => {
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boot(storyOf(demoTurn()));
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app.openStoryMode(SID);
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await settle();
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sizeAndDraw();
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$$('.story-panel[data-kind="loop"] .story-hit')[0].click();
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$('#filePreviewOverlay')!.classList.add('visible');
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press('Escape');
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expect(app.closeFilePreview).toHaveBeenCalledTimes(1);
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expect($('.story-drawer')!.hidden).toBe(false);
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press('Escape');
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expect($('.story-drawer')!.hidden).toBe(true);
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expect($('#storyOverlay')!.hidden).toBe(false);
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press('Escape');
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expect($('#storyOverlay')!.hidden).toBe(true);
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expect(app._story.open).toBe(false);
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});
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it('leaves Escape to a folder grid on top and to a preview being edited', async () => {
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boot(storyOf(demoTurn()));
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app.openStoryMode(SID);
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await settle();
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$('#folderGridOverlay')!.classList.add('visible');
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press('Escape');
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expect($('#storyOverlay')!.hidden).toBe(false);
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$('#folderGridOverlay')!.classList.remove('visible');
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$('#filePreviewOverlay')!.classList.add('visible');
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app.filePreviewEdit = { dirty: true };
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press('Escape');
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expect(app.closeFilePreview).not.toHaveBeenCalled();
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expect($('#storyOverlay')!.hidden).toBe(false);
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});
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it('closing stops listening: no Escape handling and no refresh after close', async () => {
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vi.useFakeTimers();
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try {
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boot(storyOf([prompt('go'), ...read('r1', '/w/a.ts')]));
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app.openStoryMode(SID);
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await vi.advanceTimersByTimeAsync(10);
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app.closeStoryMode();
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calls.length = 0;
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await vi.advanceTimersByTimeAsync(20_000);
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expect(calls).toEqual([]);
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expect($$('.story-panel')).toHaveLength(0);
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app._storyOnActivity({ data: JSON.stringify({ sessionId: SID }) });
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await vi.advanceTimersByTimeAsync(2000);
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expect(calls).toEqual([]);
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} finally {
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vi.useRealTimers();
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}
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});
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it('says why when a session cannot be drawn, or the request fails', async () => {
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boot({ supported: false, reason: 'Story Mode draws Claude Code sessions. This session runs a different CLI.' });
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app.openStoryMode(SID);
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await settle();
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expect($('.story-note')!.textContent).toMatch(/different CLI/);
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expect($$('.story-panel')).toHaveLength(0);
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responses = [{ status: 404, body: { success: false, error: 'Session not found' } }];
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await app._storyRefresh();
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expect($('.story-note')!.textContent).toBe('Session not found');
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});
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it('turning the setting off hides the button and closes an open story', async () => {
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boot(storyOf(demoTurn()));
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app.openStoryMode(SID);
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await settle();
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app.loadAppSettingsFromStorage = () => ({ showStoryButton: false });
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app.applyStoryButtonVisibility();
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expect($('.btn-story-header')!.classList.contains('btn-story-header--hidden')).toBe(true);
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expect($('#storyOverlay')!.hidden).toBe(true);
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});
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||||
});
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||||
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describe('story-mode.js scenes', () => {
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/** Every panel kind, in plain and awkward shapes, drawn across its whole animation. */
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function pageWith(panels: StoryPanel[], extra: Partial<StoryPage> = {}): StoryPage {
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const base = storyOf(demoTurn()).page as StoryPage;
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return { ...base, ...extra, panels };
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}
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const cap = { story: 's', director: 'd' };
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it('no scene throws, whatever the panel holds', async () => {
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const base = storyOf(demoTurn()).page as StoryPage;
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const manyFiles = Array.from(
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{ length: 20 },
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(_, i) => `/w/src/a/very/deep/path/file${i}WithALongCamelCaseName.test.tsx`
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||||
);
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const shapes: StoryPanel[] = [
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{ kind: 'mission', events: [0], caption: cap, balloon: { who: 'you', text: 'x'.repeat(500) } },
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{ kind: 'investigate', events: [], caption: cap, files: [] },
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{ kind: 'investigate', events: [], caption: cap, files: manyFiles, notes: ['grep -rn x'] },
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{ kind: 'investigate', events: [], caption: cap, files: ['/w/a'] },
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{
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kind: 'research',
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events: [],
|
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caption: cap,
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||||
notes: ['https://example.com/a/very/long/url/' + 'x'.repeat(200), 'q'],
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||||
},
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||||
{ kind: 'research', events: [], caption: cap },
|
||||
{
|
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kind: 'plan',
|
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events: [],
|
||||
caption: cap,
|
||||
todos: Array.from({ length: 12 }, (_, i) => ({ text: `step ${i} ` + 'y'.repeat(80), done: i % 2 === 0 })),
|
||||
},
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||||
{ kind: 'plan', events: [], caption: cap, notes: [] },
|
||||
{ kind: 'backup', events: [], caption: cap, helpers: [] },
|
||||
{
|
||||
kind: 'backup',
|
||||
events: [],
|
||||
caption: cap,
|
||||
helpers: Array.from({ length: 6 }, (_, i) => ({
|
||||
name: `h${i}`,
|
||||
type: 'Explore',
|
||||
task: 'z'.repeat(90),
|
||||
event: 0,
|
||||
})),
|
||||
},
|
||||
{ kind: 'fix', events: [], caption: cap, files: [], added: 0, removed: 0 },
|
||||
{
|
||||
kind: 'fix',
|
||||
events: base.panels.find((p) => p.kind === 'loop')!.events,
|
||||
caption: cap,
|
||||
files: manyFiles,
|
||||
added: 999,
|
||||
removed: 999,
|
||||
},
|
||||
{ kind: 'check', events: [], caption: cap },
|
||||
{ kind: 'check', events: [], caption: cap, ok: true, tests: { passed: 5000, failed: 0 } },
|
||||
{ kind: 'check', events: [], caption: cap, ok: false, tests: { passed: 0, failed: 3 } },
|
||||
{ kind: 'check', events: [], caption: cap, ok: false },
|
||||
{ kind: 'loop', events: [], caption: cap, rounds: 7, ok: false },
|
||||
{ kind: 'loop', events: base.panels.find((p) => p.kind === 'loop')!.events, caption: cap, rounds: 2, ok: true },
|
||||
{ kind: 'run', events: [], caption: cap, notes: [] },
|
||||
{ kind: 'run', events: [], caption: cap, notes: Array.from({ length: 10 }, () => 'w'.repeat(300)) },
|
||||
{ kind: 'save', events: [], caption: cap },
|
||||
{ kind: 'ask', events: [], caption: cap, question: { text: 'Which one?', answer: 'The first' } },
|
||||
{ kind: 'compact', events: [], caption: cap },
|
||||
{ kind: 'montage', events: [], caption: cap, notes: ['a'] },
|
||||
{ kind: 'complete', events: [], caption: cap, balloon: { who: 'claude', text: 'Done.' } },
|
||||
];
|
||||
for (const interrupted of [false, true]) {
|
||||
boot({ supported: true, turns: [], page: pageWith(shapes, { interrupted, helpers: interrupted ? 0 : 3 }) });
|
||||
app.openStoryMode(SID);
|
||||
await settle();
|
||||
expect($$('.story-panel')).toHaveLength(shapes.length);
|
||||
for (const director of [false, true]) {
|
||||
app._storySetDirector(director);
|
||||
for (const frame of [0, 1, 15, 30, 45, 72, 200, 1000]) {
|
||||
for (const rt of app._story.panels) {
|
||||
rt.clock = frame;
|
||||
for (const [w, h] of [
|
||||
[600, 270],
|
||||
[300, 300],
|
||||
[900, 270],
|
||||
[220, 430],
|
||||
]) {
|
||||
rt.w = w;
|
||||
rt.h = h;
|
||||
rt.dpr = 1;
|
||||
rt.bgKey = '';
|
||||
expect(() => app._storyDrawPanel(rt), `${rt.kind} at frame ${frame}, ${w}x${h}`).not.toThrow();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
app.closeStoryMode();
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
describe('story-mode.js layout', () => {
|
||||
it('fills every 6-column row exactly, and the last panel stretches to the end', () => {
|
||||
boot(null);
|
||||
const spans = (prefs: number[], cols = 6) => win.storyLayoutSpans(prefs, cols) as number[];
|
||||
for (const prefs of [[3, 3, 2, 2, 2, 6], [3, 2, 2, 2, 3, 2], [2], [3, 4, 2, 2], [6, 6], [2, 2, 2, 2, 2, 2, 2]]) {
|
||||
const s = spans(prefs);
|
||||
expect(s).toHaveLength(prefs.length);
|
||||
// Walk the rows: every row adds up to exactly 6.
|
||||
let row = 0;
|
||||
for (const span of s) {
|
||||
row += span;
|
||||
expect(row).toBeLessThanOrEqual(6);
|
||||
if (row === 6) row = 0;
|
||||
}
|
||||
expect(row).toBe(0);
|
||||
}
|
||||
expect(spans([1, 1, 1], 2)).toEqual([1, 1, 2]);
|
||||
});
|
||||
});
|
||||
Reference in new issue
Block a user