diora-web/e2e/global-setup.js

// Runs once before the e2e suite, after Playwright's webServer is already up
// (see playwright.config.js) but before any test executes.
//
// 1. Resets and migrates a throwaway SQLite DB (data/e2e_test.sqlite3) so
//    tests never touch the real dev database.
// 2. Creates a fixed test user.
// 3. Logs that user in through the real login form and saves the resulting
//    storage state, so authenticated specs can start already logged in via
//    `test.use({ storageState: 'e2e/.auth/user.json' })`.
const fs = require('fs');
const path = require('path');
const { execFileSync } = require('child_process');
const { chromium } = require('@playwright/test');
const { BASE_URL, PYTHON, SERVER_ENV, TEST_USER } = require('./env');

const ROOT = path.join(__dirname, '..');
const DB_PATH = path.join(ROOT, 'data', SERVER_ENV.DIORA_DB_NAME);
const AUTH_DIR = path.join(__dirname, '.auth');
const AUTH_FILE = path.join(AUTH_DIR, 'user.json');

module.exports = async function globalSetup() {
  // Fresh DB every run.
  fs.rmSync(DB_PATH, { force: true });

  execFileSync(PYTHON, ['manage.py', 'migrate', '--noinput'], {
    cwd: ROOT,
    env: SERVER_ENV,
    stdio: 'inherit',
  });

  execFileSync(
    PYTHON,
    [
      'manage.py',
      'shell',
      '-c',
      `
from django.contrib.auth import get_user_model
User = get_user_model()
User.objects.filter(username=${JSON.stringify(TEST_USER.username)}).delete()
User.objects.create_user(${JSON.stringify(TEST_USER.username)}, "", ${JSON.stringify(TEST_USER.password)})
`,
    ],
    { cwd: ROOT, env: SERVER_ENV, stdio: 'inherit' }
  );

  fs.mkdirSync(AUTH_DIR, { recursive: true });
  // A big PDF (e2e/make_pdf.py): opening draws only the pages near the view.
  execFileSync(PYTHON, [path.join(__dirname, 'make_pdf.py'), path.join(AUTH_DIR, 'big.pdf'), '400'], { stdio: 'inherit' });
  // The book the reader tests read (e2e/make_epub.py).
  execFileSync(PYTHON, [path.join(__dirname, 'make_epub.py'), path.join(AUTH_DIR, 'book.epub')], { stdio: 'inherit' });
  // Two more for uploading several at once (navigation.spec.js).
  for (const n of ['Eins', 'Zwei']) {
    execFileSync(PYTHON, [path.join(__dirname, 'make_epub.py'), path.join(AUTH_DIR, `many-${n}.epub`), `Mehrfach ${n}`], { stdio: 'inherit' });
  }

  const browser = await chromium.launch();
  const page = await browser.newPage({ baseURL: BASE_URL });
  await page.goto(`${BASE_URL}/accounts/login/`);
  await page.fill('[name=username]', TEST_USER.username);
  await page.fill('[name=password]', TEST_USER.password);
  await Promise.all([
    page.waitForURL(BASE_URL + '/'),
    page.click('button[type=submit]'),
  ]);
  await page.context().storageState({ path: AUTH_FILE });
  await browser.close();
};