feat: support guest session (#919)

tests/helpers.ts

@@ -0,0 +1,81 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import {
+  type APIRequestContext,
+  type Browser,
+  type BrowserContext,
+  expect,
+  type Page,
+} from '@playwright/test';
+import { generateId } from 'ai';
+import { ChatPage } from './pages/chat';
+import { getUnixTime } from 'date-fns';
+
+export type UserContext = {
+  context: BrowserContext;
+  page: Page;
+  request: APIRequestContext;
+};
+
+export async function createAuthenticatedContext({
+  browser,
+  name,
+  chatModel = 'chat-model',
+}: {
+  browser: Browser;
+  name: string;
+  chatModel?: 'chat-model' | 'chat-model-reasoning';
+}): Promise<UserContext> {
+  const directory = path.join(__dirname, '../playwright/.sessions');
+
+  if (!fs.existsSync(directory)) {
+    fs.mkdirSync(directory, { recursive: true });
+  }
+
+  const storageFile = path.join(directory, `${name}.json`);
+
+  const context = await browser.newContext();
+  const page = await context.newPage();
+
+  const email = `test-${name}@playwright.com`;
+  const password = generateId(16);
+
+  await page.goto('http://localhost:3000/register');
+  await page.getByPlaceholder('user@acme.com').click();
+  await page.getByPlaceholder('user@acme.com').fill(email);
+  await page.getByLabel('Password').click();
+  await page.getByLabel('Password').fill(password);
+  await page.getByRole('button', { name: 'Sign Up' }).click();
+
+  await expect(page.getByTestId('toast')).toContainText(
+    'Account created successfully!',
+  );
+
+  const chatPage = new ChatPage(page);
+  await chatPage.createNewChat();
+  await chatPage.chooseModelFromSelector('chat-model-reasoning');
+  await expect(chatPage.getSelectedModel()).resolves.toEqual('Reasoning model');
+
+  await page.waitForTimeout(1000);
+  await context.storageState({ path: storageFile });
+  await page.close();
+
+  const newContext = await browser.newContext({ storageState: storageFile });
+  const newPage = await newContext.newPage();
+
+  return {
+    context: newContext,
+    page: newPage,
+    request: newContext.request,
+  };
+}
+
+export function generateRandomTestUser() {
+  const email = `test-${getUnixTime(new Date())}@playwright.com`;
+  const password = generateId(16);
+
+  return {
+    email,
+    password,
+  };
+}