<!DOCTYPE html>
<html class="h-100" data-bs-theme="light" data-mantine-color-scheme="light" lang="ru" prefix="og: https://ogp.me/ns#">
<head>
<meta content="width=device-width, initial-scale=1.0" name="viewport">
<meta content="IE=Edge" http-equiv="X-UA-Compatible">
<link crossorigin="true" href="https://cdn.hexlet.io" rel="preconnect">
<link href="https://mc.yandex.ru" rel="preconnect">
<meta content="aa2vrdtq64dub8knuf83lwywit311w" name="facebook-domain-verification">
<link href="/favicon.ico" rel="icon" sizes="any">
<link href="/favicon.svg" rel="icon" type="image/svg+xml">
<link href="/apple-touch-icon.png" rel="apple-touch-icon">
<link href="/manifest.webmanifest" rel="manifest">
<script>
//<![CDATA[
window.gon={};gon.ym_counter="25559621";gon.is_bot=true;gon.applications={};gon.current_user={"id":null,"last_viewed_notification_id":null,"email":null,"state":null,"first_name":"","last_name":"","created_at":"2026-02-26 20:47:55 UTC","current_program":null,"current_team":null,"full_name":"","guest":true,"can_use_paid_features":false,"is_hexlet_employee":false,"sanitized_phone_number":"","can_subscribe":true,"can_renew_education":false};gon.token="KoKvPqVtZ2CsMqgUtgQ8tQLORHxV2_ZqxjlaqHzbFGPFU2QJVxPKABpxjIy6C8zCwsdp1l3sCMh72cD8LtzzDQ";gon.locale="ru";gon.language="ru";gon.theme="light";gon.rails_env="production";gon.mobile=false;gon.google={"analytics_key":"UA-1360700-51","optimize_key":"GTM-5QDVFPF"};gon.captcha={"google_v3_site_key":"6LenGbgZAAAAAM7HbrDbn5JlizCSzPcS767c9vaY","yandex_site_key":"ysc1_Vyob5ZPPUdPBsu0ykt8bVFdzsfpoVjQChLGl2b4g19647a89","verification_failed":null};gon.social_signin=false;gon.typoreporter_google_form_id="1FAIpQLSeibfGq-KvWQ2Fyru-zkFFRVTLBuzXAHAoEyN1p49FtDmNoNA";
//]]>
</script>
<meta charset="utf-8">
<title>E2E Тестирование | Тестирование фронтенда</title>
<meta name="description" content="E2E Тестирование / Тестирование фронтенда: Выясняем, что такое сквозное тестирование">
<link rel="canonical" href="https://ru.hexlet.io/courses/frontend-testing-browser/lessons/e2e-testing/theory_unit">
<meta name="robots" content="noarchive">
<meta property="og:title" content="E2E Тестирование">
<meta property="og:title" content="Тестирование фронтенда">
<meta property="og:description" content="E2E Тестирование / Тестирование фронтенда: Выясняем, что такое сквозное тестирование">
<meta property="og:url" content="https://ru.hexlet.io/courses/frontend-testing-browser/lessons/e2e-testing/theory_unit">
<meta name="csrf-param" content="authenticity_token" />
<meta name="csrf-token" content="bx6GZ7GWcLdZfX4cvc3KpYNVqjzuoKRADF4GkuYWW9OAz01QQ-jd1-8-WoSxwjrSQ1yHluaXWuKxvpzGtBG8vQ" />
<script src="/vite/assets/inertia-DfXos102.js" crossorigin="anonymous" type="module"></script><link rel="modulepreload" href="/vite/assets/chunk-DsPFFUou.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/preload-helper-BJ4cLWpC.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/init-BrRXra1y.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/ahoy-DrlRQ-1D.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/analytics-cb8xch9l.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/ErrorFallbackBlock-naDSYSy9.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Surface-DL2bpZA-.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/gon-D3e4yh1x.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/mantine-CGMYrt2Y.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/utils-DRqSHbQE.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/routes-CCH8ilKF.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/extends-C-EagtpE.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/inheritsLoose-BBd-DCVI.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/objectWithoutPropertiesLoose-DRHXDhjp.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/index.esm-DAqKOkZ0.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Button-CGPUux8l.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/CloseButton-D1euiPao.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Group-BX48WcuU.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Loader-BQEY8g6v.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Modal-Cy3HByv7.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/OptionalPortal-1Hza5P2w.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Stack-CtjJzfw4.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Textarea-Ck64llAy.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Box-B5-OOzBf.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/DirectionProvider-Dc9zdUke.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/events-DJQOhap0.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/use-reduced-motion-D2owz4wa.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/use-disclosure-zKtK5W1r.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/use-hotkeys-Cnc_Rwkb.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/random-id-DOQyszCZ.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/notifications.store-C-3AFSMn.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/exports-C_MrNx_T.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/axios-BEvgo0ym.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/dayjs.min-BkKovM-s.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/i18next-BlSq9s7B.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/client-U9M77rxp.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/react-dom-DaLxUz_h.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/useTranslation-Bx1Cdrkz.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/compiler-runtime-6XxiPFnt.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/jsx-runtime-CwjcCKJi.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/react-CkL4ZRHB.js" as="script" crossorigin="anonymous">
<link rel="stylesheet" href="/vite/assets/application-BqhCP46M.js" />
<script src="/vite/assets/application-Df9RExpe.js" crossorigin="anonymous" type="module"></script><link rel="modulepreload" href="/vite/assets/chunk-DsPFFUou.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/autocomplete-VMNbxKGl.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/routes-CCH8ilKF.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/createPopper-C3aM9r1M.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/js.cookie-D1-O8zkX.js" as="script" crossorigin="anonymous"><link rel="stylesheet" href="/vite/assets/application-C8HjmMaq.css" media="screen" />
<script>
window.ym = function(){(ym.a=ym.a||[]).push(arguments)};
window.addEventListener('load', function() {
setTimeout(function() {
ym.l = 1*new Date();
ym(window.gon.ym_counter, "init", {
clickmap: true,
trackLinks: true,
accurateTrackBounce: true,
webvisor: true
});
// Загружаем скрипт
var k = document.createElement('script');
k.async = 1;
k.src = 'https://mc.yandex.ru/metrika/tag.js';
document.head.appendChild(k);
ym(window.gon.ym_counter, 'getClientID', function(clientID) {
window.ymClientId = clientID;
});
}, 1500);
});
</script>
<!-- Google Tag Manager - deferred -->
<script>
// dataLayer stub сразу — пуши работают до загрузки скрипта
window.dataLayer = window.dataLayer || [];
// Сам скрипт — отложенно после load
window.addEventListener('load', function() {
setTimeout(function() {
dataLayer.push({'gtm.start': new Date().getTime(), event: 'gtm.js'});
var j = document.createElement('script');
j.async = true;
j.src = 'https://www.googletagmanager.com/gtm.js?id=GTM-WK88TH';
document.head.appendChild(j);
}, 1500);
});
</script>
<!-- End Google Tag Manager -->
</head>
<body>
<noscript>
<div>
<img alt="" src="https://mc.yandex.ru/watch/25559621" style="position:absolute; left:-9999px;">
</div>
</noscript>
<header class="sticky-top bg-body">
<nav class="navbar navbar-expand-lg">
<div class="container-xxl">
<a class="navbar-brand" href="/"><img alt="Логотип Хекслета" height="24" src="https://ru.hexlet.io/vite/assets/logo_ru_light-BpiEA1LT.svg" width="96">
</a><button aria-controls="collapsable" aria-expanded="false" aria-label="Меню" class="navbar-toggler border-0 mb-0 mt-1" data-bs-target="#collapsable" data-bs-toggle="collapse">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="collapsable">
<ul class="navbar-nav mb-lg-0 mt-lg-1">
<li class="nav-item dropdown">
<button aria-haspopup class="btn nav-link" data-bs-toggle="dropdown" type="button">
Все курсы
<span class="bi bi-chevron-down align-middle ms-1"></span>
</button>
<ul class="dropdown-menu">
<li>
<a class="dropdown-item d-flex py-2" href="/courses"><div class="fw-bold me-auto">Все что есть</div>
<div class="text-muted">117</div>
</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li class="dropdown-item">
<b>Популярные категории</b>
</li>
<li>
<a class="dropdown-item py-2" href="/courses_devops">Курсы по DevOps
</a></li>
<li>
<a class="dropdown-item py-2" href="/courses_data_analytics">Курсы по аналитике данных
</a></li>
<li>
<a class="dropdown-item py-2" href="/courses_programming">Курсы по программированию
</a></li>
<li>
<a class="dropdown-item py-2" href="/courses_testing">Курсы по тестированию
</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li class="dropdown-item">
<b>Популярные курсы</b>
</li>
<li>
<a class="dropdown-item py-2" href="/programs/devops-engineer-from-scratch">DevOps-инженер с нуля
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/go">Go-разработчик
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/java">Java-разработчик
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/python">Python-разработчик
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/qa-auto-engineer-java">Автоматизатор тестирования на Java
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/data-analytics">Аналитик данных
</a></li>
<li>
<a class="dropdown-item py-2" href="/programs/frontend">Фронтенд-разработчик
</a></li>
</ul>
</li>
<li class="nav-item dropdown">
<button aria-haspopup class="btn nav-link" data-bs-toggle="dropdown" type="button">
О Хекслете
<span class="bi bi-chevron-down align-middle"></span>
</button>
<ul class="dropdown-menu bg-body">
<li>
<a class="dropdown-item py-2" href="/pages/about">О нас
</a></li>
<li>
<a class="dropdown-item py-2" href="/blog">Блог
</a></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://special.hexlet.io/hse-research" role="button">Результаты (Исследование)
</span></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://career.hexlet.io" role="button">Хекслет Карьера
</span></li>
<li>
<a class="dropdown-item py-2" href="/testimonials">Отзывы студентов
</a></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://t.me/hexlet_help_bot" role="button">Поддержка (В ТГ)
</span></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://special.hexlet.io/referal-program/?promo_creative=priglasite-druzei&promo_name=referal-program&promo_position=promo_position&promo_start=010724&promo_type=link" role="button">Реферальная программа
</span></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://special.hexlet.io/certificate" role="button">Подарочные сертификаты
</span></li>
<li>
<span class="dropdown-item py-2 external-link" data-href="https://hh.ru/employer/4307094" role="button">Вакансии
</span></li>
<li>
<span class="dropdown-item d-flex external-link" rel="noopener noreferrer nofollow" data-href="https://b2b.hexlet.io" data-target="_blank" role="button">Компаниям
</span></li>
<li>
<span class="dropdown-item d-flex external-link" rel="noopener noreferrer nofollow" data-href="https://hexly.ru/" data-target="_blank" role="button">Колледж
</span></li>
<li>
<span class="dropdown-item d-flex external-link" rel="noopener noreferrer nofollow" data-href="https://hexlyschool.ru/" data-target="_blank" role="button">Частная школа
</span></li>
</ul>
</li>
<li><a class="nav-link" href="/subscription/new">Подписка</a></li>
</ul>
<ul class="navbar-nav flex-lg-row align-items-lg-center gap-2 ms-auto">
<li>
<a class="nav-link" aria-label="Переключить тему" href="/theme/switch?new_theme=dark"><span aria-hidden="true" class="bi bi-moon"></span>
</a></li>
<li>
<span data-target="_self" class="nav-link external-link" data-href="/u/new" role="button"><span>Регистрация</span>
</span></li>
<li>
<span data-target="_self" class="nav-link external-link" data-href="https://ru.hexlet.io/session/new" role="button"><span>Вход</span>
</span></li>
</ul>
</div>
</div>
</nav>
</header>
<div class="x-container-xxxl">
</div>
<main class="mb-6 min-vh-100 h-100">
<div id="app" data-page="{"component":"web/courses/lessons/theory_unit","props":{"errors":{},"locale":"ru","language":"ru","httpsHost":"https://ru.hexlet.io","host":"ru.hexlet.io","colorScheme":"light","auth":{"user":{"id":null,"last_viewed_notification_id":null,"email":null,"state":null,"first_name":"","last_name":"","created_at":"2026-02-26T20:47:55.620Z","current_program":null,"current_team":null,"full_name":"","guest":true,"can_use_paid_features":false,"is_hexlet_employee":false,"sanitized_phone_number":"","can_subscribe":true,"can_renew_education":false}},"cloudflareTurnstileSiteKey":"0x4AAAAAAA15KmeFXzd2H0Xo","vkIdClientId":"51586979","yandexIdClientId":"88d071f1d3384eb4bd1deb37910235c7","formAuthToken":"93X3XtgfLttYPBJBgmbQsnYsU_z8hwOTLlefWS5eVTsYpDxpKmGDu-5_NtmOaSDFtiV-VvSw_TGTtwUNfFmyVQ","topics":[{"id":75300,"title":"Где-то в серваке в бесконечный цикл уходит прога. При любом моем коде\n\n/* eslint-disable no-undef */\n\nconst port = 5000;\nconst host = 'localhost';\nconst appUrl = `http://${host}:${port}`;\n\n// BEGIN (write your solution here)\ntest('test', () => {\n expect(1).toBe(1);\n});\n// END\n\n// make: Entering directory '/usr/src/app'\n// npm test - s\n// make: *** [Makefile: 5: test] Terminated","plain_title":"Где-то в серваке в бесконечный цикл уходит прога. При любом моем коде /* eslint-disable no-undef */ const port = 5000; const host = 'localhost'; const appUrl = http://${host}:${port}; // BEGIN (write your solution here) test('test', () => { expect(1).toBe(1); }); // END // make: Entering directory '/usr/src/app' // npm test - s // make: *** [Makefile: 5: test] Terminated ","creator":{"public_name":"","id":492833,"is_tutor":false},"comments":[{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":157076,"body":"**tranzitivnost**, есть проблемы с упражнением. Пока разбираемся в чём дело. Спасибо что написали об этом!","topic_id":75300}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}},{"id":95975,"title":" В директории server почти пусто, что нужно тестировать? Откуда брать тестайди?","plain_title":" В директории server почти пусто, что нужно тестировать? Откуда брать тестайди? ","creator":{"public_name":"Zkibanov","id":300297,"is_tutor":false},"comments":[{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":186809,"body":"**Zkibanov**, в директории server несколько файлов и вложенных папок. Вероятно вы не расскрыли эту директорию в меню. При создании сущности сервер возвращает эту сущность с id.","topic_id":95975}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}},{"id":81945,"title":"Не могу выполнить упражнение. Тесты не завершаются. Сброс упражнения не помогает.","plain_title":"Не могу выполнить упражнение. Тесты не завершаются. Сброс упражнения не помогает. ","creator":{"public_name":"Эдуард Аминов","id":278386,"is_tutor":false},"comments":[{"creator":{"public_name":"Olga Pejenkova","id":364375,"is_tutor":true},"id":167329,"body":"**Эдуард Аминов**, \n\nСпасибо, действительно есть проблема. Создала тикет, будем разбираться.","topic_id":81945},{"creator":{"public_name":"Эдуард Аминов","id":278386,"is_tutor":false},"id":167248,"body":"https://ru.hexlet.io/code_reviews/862314","topic_id":81945},{"creator":{"public_name":"Olga Pejenkova","id":364375,"is_tutor":true},"id":167206,"body":"**Эдуард Аминов**, \n\nдайте, пожалуйста, ссылку на ваше [код-ревью](https://help.hexlet.io/ru/articles/282174-kak-soxranit-svoe-resenie), чтобы можно было разобраться в чем проблема.","topic_id":81945}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}},{"id":86174,"title":"не могу запустить тест, терминал выдает вот что\n\nError: Jest: Got error running globalSetup - /Users/sashnevski/education/Hexlet/hexlet-assignments/frontend-testing-browser-ru/e2e-testing/node_modules/jest-environment-puppeteer/setup.js, reason: Failed to launch the browser process! spawn /usr/bin/google-chrome ENOENT","plain_title":"не могу запустить тест, терминал выдает вот что Error: Jest: Got error running globalSetup - /Users/sashnevski/education/Hexlet/hexlet-assignments/frontend-testing-browser-ru/e2e-testing/node_modules/jest-environment-puppeteer/setup.js, reason: Failed to launch the browser process! spawn /usr/bin/google-chrome ENOENT ","creator":{"public_name":"Александр Невский","id":602945,"is_tutor":false},"comments":[{"creator":{"public_name":"Александр Невский","id":602945,"is_tutor":false},"id":173357,"body":"**Ivan Gagarinov**, https://github.com/AlexNeva/hexlet-assignments\nзалить через hexlet cli не получилось. пробовал из разных директорий. пришлось просто пушить","topic_id":86174},{"creator":{"public_name":"Александр Невский","id":602945,"is_tutor":false},"id":173328,"body":"я так понимаю ссылку на репозиторий?\n","topic_id":86174},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":173334,"body":"**Александр Невский**, да","topic_id":86174},{"creator":{"public_name":"Александр Невский","id":602945,"is_tutor":false},"id":173485,"body":"**Ivan Gagarinov**, хорошо, спасибо)","topic_id":86174},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":173401,"body":"**Александр Невский**, какой командой вы запускаете тест? Делаете это в директории с заданием? Перед запуском тестов запускали установку зависимостей командой `make install`?","topic_id":86174},{"creator":{"public_name":"Александр Невский","id":602945,"is_tutor":false},"id":173479,"body":"**Ivan Gagarinov**, щас зашел и меня дальше запустило по курсу) в итоге дз надо делать или нет?,))","topic_id":86174},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":173326,"body":"**Александр Невский**, скиньте пожалуйста ссылку на свое решение.","topic_id":86174},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":173483,"body":"**Александр Невский**, я убрал это домашнее задание, так как оно повторяет упражнение","topic_id":86174}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}},{"id":75742,"title":"Любой тест падает с ошибкой таймаута. Пробовал на тестах из подсказок. Также попробовал просто вывести console.log. В любом случае тест не выполняется.","plain_title":"Любой тест падает с ошибкой таймаута. Пробовал на тестах из подсказок. Также попробовал просто вывести console.log. В любом случае тест не выполняется. ","creator":{"public_name":"Vladimir","id":26134,"is_tutor":false},"comments":[{"creator":{"public_name":"Дамир Еникеев","id":265980,"is_tutor":false},"id":166995,"body":"> попробуйте пожалуйста сбросить упражнение и ещё раз проверить. Только сохраните перед этим своё решение, чтобы не потерять код.\n\nсброс упражнения не помогает, тесты не работают: \"status: finished → Упс, что то пошло не так, код работал слишком долго и был остановлен. Проверьте условия выхода из циклов.\"","topic_id":75742},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":157840,"body":"**Vladimir**, попробуйте пожалуйста сбросить упражнение и ещё раз проверить. Только сохраните перед этим своё решение, чтобы не потерять код.","topic_id":75742}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}},{"id":87910,"title":"Jest не запускается по умолчанию, до написания какого-либо кода в упражнении. Выдает следующую ошибку:\nError: Jest: Got error running globalSetup - /usr/local/lib/hexlet-javascript/node_modules/jest-environment-puppeteer/setup.js, reason: Could not find browser revision 809590. Run \"PUPPETEER_PRODUCT=firefox npm install\" or \"PUPPETEER_PRODUCT=firefox yarn install\" to download a supported Firefox browser binary.","plain_title":"Jest не запускается по умолчанию, до написания какого-либо кода в упражнении. Выдает следующую ошибку: Error: Jest: Got error running globalSetup - /usr/local/lib/hexlet-javascript/nodemodules/jest-environment-puppeteer/setup.js, reason: Could not find browser revision 809590. Run \"PUPPETEERPRODUCT=firefox npm install\" or \"PUPPETEER_PRODUCT=firefox yarn install\" to download a supported Firefox browser binary. ","creator":{"public_name":"Игорь музланов","id":631793,"is_tutor":false},"comments":[{"creator":{"public_name":"Игорь музланов","id":631793,"is_tutor":false},"id":176033,"body":"Здравствуйте, это именно в упражнениях, не локально.","topic_id":87910},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":175947,"body":"**Игорь музланов**, здравствуйте. Подскажите, у вас вопрос по упражнению или вы пытаетесь локально запустить тесты? Если локально, попробуйте запустить предлагаемую команду `PUPPETEER_PRODUCT=firefox npm install`","topic_id":87910},{"creator":{"public_name":"Ivan Gagarinov","id":75907,"is_tutor":true},"id":176034,"body":"**Игорь музланов**, можете сохранить свое решение и скинуть ссылку? Еще вопрос: не пробовали сделать сброс упражнения?","topic_id":87910}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"E2E Тестирование","entity_url":null,"active":true}}],"lesson":{"exercise":null,"units":[{"id":4564,"name":"theory","url":"/courses/frontend-testing-browser/lessons/e2e-testing/theory_unit"}],"links":[],"ordered_units":[{"id":4564,"name":"theory","url":"/courses/frontend-testing-browser/lessons/e2e-testing/theory_unit"}],"id":2030,"slug":"e2e-testing","state":"approved","name":"E2E Тестирование","course_order":200,"goal":"Выясняем, что такое сквозное тестирование","self_study":null,"theory_video_provider":"vimeo","theory_video_uid":"558359015","theory":"# E2E Тестирование\n\n`jest-puppeteer` - библиотека для тестирования с открытым исходным кодом\n\nПример конфига для `jest`:\n\n```javascript\n// jest.config.js\n{\n preset: 'jest-puppeteer',\n globals: {\n URL: 'http://localhost:8080'\n },\n testMatch: [\n '**/test/**/*.test.js'\n ],\n verbose: true\n}\n```\n\nПример конфига для `jest-puppeteer`:\n\n```javascript\n// jest-puppeteer.config.js\n// Вместо puppeteer.launch()\n{\n launch: {\n headless: process.env.HEADLESS !== 'false',\n slowMo: process.env.SLOWMO ? process.env.SLOWMO : 0,\n devtools: true\n }\n}\n```\n\nПример теста:\n\n```javascript\nconst timeout = process.env.SLOWMO ? 30000 : 10000\n\nbeforeAll(async () => {\n // Перед каждым тестом открываем страницу\n await page.goto(URL, { waitUntil: 'domcontentloaded' })\n})\n\ndescribe('Test header and title of the page', () => {\n test('Title of the page', async () => {\n // Получаем заголовок\n const title = await page.title()\n // Проверяем заголовок\n expect(title).toBe('E2E Puppeteer Testing')\n },\n // Задаём таймаут теста\n timeout,\n )\n})\n```\n\nМетод `evaluate()` позволяет выполнить переданную фукнкцию, как если бы она была выполнена на странице. Первым параметром принимает функцию, которую нужно выполнить, а остальные параметры передаются в качестве аргументов в выполняемую функцию:\n\n```javascript\ntest('Header of the page', async () => {\n // Получаем элемент\n const h1Handle = await page.$('.learn_header')\n // Вызываем evaluate\n const html = await page.evaluate(\n // Передаём функцию, которую нужно выполнить\n h1Handle => h1Handle.innerHTML,\n // Следующим параметром передаём аргумент\n h1Handle,\n )\n\n // Проверяем результат\n expect(html).toBe('What will you learn')\n})\n```\n\nПример теста для формы регистрации:\n\n```javascript\ntest('Submit form with valid data', async () => {\n // Переходим на форму регистрации\n await page.click('[href=\"/signin\"]')\n\n // Ждём загрузки формы\n await page.waitForSelector('form')\n // Вводим логин\n await page.type('#name', 'Rick')\n\n // Вводим пароль\n await page.type('#password', 'szechuanSauce')\n // Вводим потверждение пароля\n await page.type('#repeat_password', 'szechuanSauce')\n\n // Отправляем форму\n await page.click('[type=\"submit\"]')\n // Ждем завершения отправки\n await page.waitForSelector('.success')\n // Получаем содержимое сообщения\n const html = await page.$eval('.success', el => el.innerHTML)\n\n // Проверяем сообщение\n expect(html).toBe('Successfully signed up!')\n})\n```\n\nПример создания скриншотов и изменение размера страницы:\n\n```javascript\n// screenshots.test.js\ntest('Take screenshot of home page', async () => {\n // Задаем размеры страницы\n await page.setViewport({ width: 1920, height: 1080 })\n // Создаем скриншот\n await page.screenshot({\n path: './src/test/screenshots/home.jpg',\n fullpage: true,\n type: 'jpeg',\n })\n})\n```\n\nДля проверки разных размеров страницы, удобно использовать `test.each`:\n\n```javascript\n// global\nconst dimentions = [\n [600, 1200],\n [640, 1200],\n [600, 1380],\n [640, 1380],\n]\n\n// screenshots.test.js\n// Проходимся по каждому размеру\ntest.each(dimentions)('Take screenshot of home page with size %p x %p', async ([height, width]) => {\n // Задаем размеры страницы\n await page.setViewport({ width, height })\n // Сохраняем скриншот\n await page.screenshot({\n path: `./src/test/screenshots/home-${height}x${width}.jpg`,\n fullpage: true,\n type: 'jpeg',\n })\n})\n```\n\nПример эмуляции другого устройства:\n\n```javascript\n// Подключаем модуль для имитации устройств\nimport devices from 'puppeteer/DeviceDescriptors'\n\ntest('Emulate Mobile Device And take screenshot', async () => {\n // Открываем страницу\n await page.goto(`${URL}/login`, { waitUntil: 'domcontentloaded' })\n const iPhonex = devices['iPhone X']\n // Задаем эмуляцию устройства\n await page.emulate(iPhonex)\n // Задаем настройки устройства\n await page.setViewport({ width: 375, height: 812, isMobile: true })\n // Создаем скриншот\n await page.screenshot({\n path: './src/test/screenshots/home-mobile.jpg',\n fullpage: true,\n type: 'jpeg',\n })\n})\n```\n\nПример прерывания запроса:\n\n```javascript\ntest('Intercept Request', async () => {\n // Активируем перехват запросов\n await page.setRequestInterception(true)\n page.on('request', (interceptedRequest) => {\n // Перехватываем запросы и обрабатываем\n if (interceptedRequest.url().endsWith('.png')) {\n interceptedRequest.abort()\n }\n else {\n interceptedRequest.continue()\n }\n })\n await page.reload({ waitUntil: 'networkidle0' })\n await page.setRequestInterception(false)\n})\n```\n\n### Puppeteer\n\nТесты и браузер имеют разную среду. Чтобы запустить код в контексте браузера, нужно использовать `evaluate()`:\n\n```javascript\n// Скролл страницы\nawait page.evaluate((x, y) => window.scrollBy(x, y), x, y);\n// Получение переменной\nawait page.evaluate(() => variable));\n```\n\nПример извлечения элементов:\n\n```javascript\nconst imageUrls = await page.evaluate(() => {\n // Внутри evaluate обращаемся напрямую к DOM\n const images = document.querySelectorAll('article img')\n const urls = Array.from(images).map(({ src }) => ({ src }))\n return urls\n})\n```\n\nТоже самое, но с передачей селектора в переменной:\n\n```javascript\n// Сохраняем селектор\nconst imageSelector = 'article img'\n\nconst imageUrls = await page.evaluate((selector) => {\n // selector передается через параметр\n const images = document.querySelectorAll(selector)\n const urls = Array.from(images).map(({ src }) => ({ src }))\n return urls\n}, imageSelector) // Передаём селектор\n```\n\nЕще один пример:\n\n```javascript\n// Получаем элемент\nconst bodyHandle = await page.$('body')\n// Извлекаем содержимое элемента с помощью evaluate\nconst html = await page.evaluate(body => body.innerHTML, bodyHandle)\nawait bodyHandle.dispose()\n```\n\nPlaywright также имеет метод `evaluate()`:\n\n```javascript\n// Обращаемся к документу с помощью evaluate\nconst href = await page.evaluate(() => document.location.href)\n\n// Выполнение запроса\nconst status = await page.evaluate(async () => {\n const response = await fetch(location.href)\n return response.status\n})\n\n// Получаем кнопку\nconst button = await page.$('button')\n// Извлекаем содержимое элемента с помощью evaluate\nconst buttonText = await page.evaluate(button => button.textContent, button)\n```\n\nКак не надо делать:\n\n```javascript\nconst user = { name: 'Ruslan', age: 77 }\nconst result = await page.evaluate(() => {\n // Доступа к user нет, замыкание не работает\n window.myApp.use(user)\n})\n```\n\nПравильный способ:\n\n```javascript\nconst user = { name: 'Ruslan', age: 77 }\nconst result = await page.evaluate((user) => {\n window.myApp.use(user)\n}, user) // Передаём user через параметры evaluate\n```\n\n# Работа с асинхронностью\n\nЕсть несколько событий, которые мы ожидаем:\n\n* загрузка страницы\n* изменения на странице (изменения в DOM-дереве)\n* запросы\n* кастомные ожидания\n\n## Ожидание загрузки страницы\n\n### Selenium\n\n```javascript\n// Переходим на страницу\ndriver.get('http://localhost:3000')\ndriver.wait(function () {\n return driver\n // Запускаем скрипт\n .executeScript('return document.readyState')\n .then(function (readyState) {\n // Проверяем что все в порядке\n return readyState === 'complete'\n })\n})\n```\n\n### Cypress\n\n```javascript\n// Вся работа происходит внутри метода\ncy.visit('http://localhost:3000')\n```\n\n\n### Playwright and Puppeteer\n\n```javascript\n// Тоже самое в playwright и puppeteer\nawait page.goto('http://localhost:3000')\n```\n\n\n## Ожидания изменений на странице\n\n### Selenium\n\n```javascript\n// Ожидание элемента\ndriver.wait(until.elementLocated(By.id('#form-feedback')), 4000)\n\n// Ожидание элемента с определенным контентом\nconst el = driver.wait(until.elementLocated(By.id('#form-feedback')), 4000)\nwait.until(ExpectedConditions.textToBePresentInElement(el, 'Success'))\n```\n\n### Cypress\n\n```javascript\n// Ожидание элемента\ncy.get('#form-feedback', { timeout: 5000 }) // 4 секунды по умолчанию\n\n// Ожидание элемента с определенным контентом\ncy.get('#form-feedback').contains('Success')\n```\n\n### Playwright и Puppeteer\n\n```javascript\n// Ожидание элемента\nawait page.waitForSelector('#form-feedback', { timeout: 5000 }) // 30 секунд по умолчанию\n\n// Ожидание элемента с определенным контентом\nawait page.waitForFunction((selector) => {\n const el = document.querySelector(selector)\n return el && el.textContent === 'Success'\n},\n{},\n'#form-feedback',\n)\n```\n\n## Ожидание запросов\n\n### Selenium\n\n```javascript\n// Указываем url, за которым хотим следить\ndriver.get('https://mail.ru/api/users')\nconst mydynamicelement = (new webdriverwait(driver, 10))\n .until(expectedconditions.presenceofelementlocated(by.id('mydynamicelement')))\n```\n\n### Cypress\n\n```javascript\ncy.intercept('https://mail.ru/api/users').as('users')\ncy.wait('@users')\n .its('response.body')\n .then((body) => {\n // ...\n })\n```\n\n### Playwright and Puppeteer\n\n```javascript\n// Указываем url, на который ожидаем запрос\nawait page.waitForRequest('https://mail.ru/api/users')\n\n// Указываем url, на который ожидаем ответ\nconst response = await page.waitForResponse(\n 'https://mail.ru/api/users',\n)\nconst body = response.json()\n```\n\n## Ожидание кастомных изменений\n\nМы хотим дождаться, пока глобальной переменной `user` не будет присвоено значение `Ivan`\n\n### Selenium\n\n```javascript\nbrowser.executeAsyncScript(`\n window.setTimeout(function() {\n if(window.user === 'Ivan') {\n arguments[arguments.length - 1]();\n }\n }, 300);\n`)\n```\n\n### Cypress\n\n```javascript\n// Используется плагин cypress-wait-until\ncy.waitUntil(() => cy.window().then(win => win.user === 'Ivan'))\n```\n\n### Playwright и Puppeteer\n\n```javascript\nawait page.waitForFunction('window.user === \"Ivan\"')\n```\n\n## Итог\n\nНиже плохой пример, в нем используется магическое число и код останавливается на какое-то время. Не факт, что обработка события успеет завершиться к этому времени\n\n```javascript\ntest('can logout', async () => {\n await page.click('#menu div > a');\n sleep 500;\n // ...\n});\n```\n\nНиже правильный пример. Указываем какие элементы ожидать:\n\n```javascript\ntest('can logout', async () => {\n await page.click('[data-testid=\"userMenuButton\"]')\n await page.waitForSelector('[data-testid=\"userMenuOpen\"]')\n await page.click('[data-testid=\"logoutLink\"]')\n await page.waitForSelector('[data-testid=\"userLoginForm\"]')\n})\n```\n"},"lessonMember":null,"courseMember":null,"course":{"start_lesson":{"exercise":null,"units":[{"id":4569,"name":"theory","url":"/courses/frontend-testing-browser/lessons/web-drivers/theory_unit"}],"links":[],"ordered_units":[{"id":4569,"name":"theory","url":"/courses/frontend-testing-browser/lessons/web-drivers/theory_unit"}],"id":2035,"slug":"web-drivers","state":"approved","name":"WebDrivers","course_order":100,"goal":"Знакомимся с инструментами для взаимодействия с браузерами","self_study":null,"theory_video_provider":"vimeo","theory_video_uid":"558045248","theory":"## Web Drivers\n\nWeb Drivers - это инструменты для взаимодействия с браузером.\n\n* Интерфейс удаленного управления, который позволяет анализировать и управлять браузером\n* Платформонезависимый и не зависит от языка\n* Предоставляет набор интерфейсов для нахождения и управления элементами DOM\n* Не имеет прямого отношения к тестированию\n\n## Selenium\n\nSelenium — один из популярных фреймворков для тестирования. Поддерживается всеми основными платформами и на всех браузерах. Он позволяет автоматизировать тестирование, имитировать действия пользователей.\n\nИспользование:\n\n```javascript\nimport { Builder, By, Key, until } from 'selenium-webdriver'\n\ndescribe('web driver', () => {\n let driver\n\n test('google first result', async () => {\n // Создаём инстанс вебдрайвера\n driver = new Builder().forBrowser('chrome').build()\n\n // Выполняем переход на страницу\n driver.get('https://www.google.com')\n\n // Получаем элемент ввода\n const input = driver.findElement(By.name('q'))\n\n // Вызываем на элементе события нажатия клавиш (ввод в поиск и Enter)\n await input.sendKeys('hello', Key.ENTER)\n\n // Дожидаемся пока не появится элемент и получаем его\n const firstResult = await driver.wait(until.elementLocated(By.css('h3')), 10000)\n\n // Выводим содержимое элемента\n console.log(await firstResult.getAttribute('textContent'))\n }, 10000)\n\n afterEach(() => {\n driver.quit()\n })\n})\n```\n\nВ асинхронных запросах промисы должны возвращаться из тестов, иначе тесты не дожидаются выполнение асинхронных операций. Либо нужно использовать `async await`\n\n```javascript\nimport { Builder, By, Key } from 'selenium-webdriver'\n\nconst URL = 'http://svelte3-todo.surge.sh/'\n\ndescribe('web driver', () => {\n let driver\n\n // Создаём драйвер перед выполнением тестов\n beforeAll(() => {\n driver = new Builder()\n .forBrowser('chrome')\n .build()\n })\n\n // Тест добавления таска\n test('add a task', async () => {\n // Выполняем переход на страницу\n driver.get(URL)\n\n // Возвращаем промис из теста\n return driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER)\n // Асинхнронные запросы оборачиваем в цепочку промиса\n .then(() => driver.getPageSource())\n .then((source) => {\n expect(source.includes('Build App')).toBe(true)\n })\n }, 1000)\n\n // Тест отметки таска как пройденного\n test('mark a task complete', () => {\n driver.get(URL)\n\n return driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER) // Создаём таск\n // Перед изменением таска, проверяем что он не завершен, для этого проверяем класс\n .then(() => driver.findElement(By.className('todo-item')).getAttribute('class')) // получаем класс, асинхронный запрос\n .then((className) => {\n // проверяем что класс не содержит 'done'\n expect(className.includes('done')).toBe(false)\n // Вызываем клик по задаче (отмечаем что она завершена)\n // это асинхронная операция, поэтому возвращаем промис\n return driver.findElement(By.css('label')).click()\n })\n // Снова получаем класс, асинхронный запрос, поэтому оборачиваем в цепочку then\n .then(() => driver.findElement(By.className('todo-item')).getAttribute('class'))\n .then((className) => {\n // Проверяем имя класса\n expect(className.includes('done')).toBe(true)\n })\n }, 1000)\n\n test('delete a task', () => {\n driver.get(URL)\n\n // Перед удалением также создаем таск\n return driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER)\n // Кликаем по кнопке удаления\n .then(() => driver.findElement(By.className('delete-todo')).click())\n // Получаем содержимое страницы\n .then(() => driver.getPageSource())\n .then((source) => {\n // Проверяем что таск удалён\n expect(source.includes('Build App')).toBe(false)\n })\n }, 1000)\n\n afterAll(() => {\n driver.quit()\n })\n})\n```\n\nТоже самое с `async await`:\n\n```javascript\nimport { Builder, By, Key } from 'selenium-webdriver'\n\nconst URL = 'http://svelte3-todo.surge.sh/'\n\ndescribe('web driver', () => {\n let driver\n\n // Создаём драйвер перед выполнением тестов\n beforeAll(() => {\n driver = new Builder()\n .forBrowser('chrome')\n .build()\n })\n\n // Тест добавления таска\n test('add a task', async () => {\n // Выполняем переход на страницу\n driver.get(URL)\n\n // Создаём таск\n await driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER)\n const source = await driver.getPageSource()\n expect(source.includes('Build App')).toBe(true)\n }, 1000)\n\n // Тест отметки таска как пройденного\n test('mark a task complete', async () => {\n driver.get(URL)\n\n // Создаём таск\n await driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER)\n // Перед изменением таска, проверяем что он не завершен, для этого проверяем класс\n const classNameBefore = await driver.findElement(By.className('todo-item')).getAttribute('class') // получаем класс\n\n // проверяем что класс не содержит 'done'\n expect(classNameBefore.includes('done')).toBe(false)\n // Вызываем клик по задаче (отмечаем что она завершена)\n await driver.findElement(By.css('label')).click()\n // Снова получаем класс\n const classNameAfter = await driver.findElement(By.className('todo-item')).getAttribute('class')\n\n // Проверяем имя класса\n expect(classNameAfter.includes('done')).toBe(true)\n }, 1000)\n\n test('delete a task', async () => {\n driver.get(URL)\n\n // Перед удалением также создаем таск\n await driver.findElement(By.className('js-todo-input')).sendKeys('Build App', Key.ENTER)\n // Кликаем по кнопке удаления\n await driver.findElement(By.className('delete-todo')).click()\n // Получаем содержимое страницы\n const source = await driver.getPageSource()\n // Проверяем что таск удалён\n expect(source.includes('Build App')).toBe(false)\n }, 1000)\n\n afterAll(() => {\n driver.quit()\n })\n})\n```\n\n## Cypress\n\nCypress — это e2e фреймворк для тестирования на JS, имеет свой тест-раннер, поддерживает множество языков.\n\nКомпонентное тестирование:\n\n```jsx\nimport * as React from 'react'\nimport { mount } from '@cypress/react'\nimport Button from './Button.jsx'\n\nit('Button', () => {\n // Рендерим кнопку\n mount(<Button>Text button</Button>)\n // Кликаем по кнопке\n cy.get('button').contains('Test button').click()\n})\n```\n\n```javascript\n// Тестируем завершения таска\nit('complete todo', () => {\n // Отрываем страницу\n cy.visit('/')\n // Находим элемент ввода, имитируем ввод имени таска и нажатие Enter\n cy.get('.new-todo').type('write tests{enter}')\n // Отмечаем выполнение таска\n cy.contains('.todo-list li', 'write tests').find('.toggle').check()\n\n // Проверяем наличие класса\n cy.contains('.todo-list li', 'write tests').should('have.class', 'completed')\n\n // При установленном плагине cypress-plugin-snapshots можно создавать скриншоты\n cy.get('.todoapp').toMatchImageSnapshot({\n imageConfig: {\n threshold: 0.001,\n },\n })\n})\n\n// Тест добавления таска\nit('adds todos', () => {\n // Открываем страницу\n cy.visit('/')\n\n // Создаём два таска\n cy.get('.new-todo')\n .type('write E2E tests{enter}')\n .type('add API tests as needed{enter}')\n\n // Проверяем что запросы были отправлены\n cy.request('/todos')\n .its('body')\n .should('have.length', 2)\n .and((items) => {\n // ...\n })\n})\n```\n\n## Playwright\n\nPlaywright — библиотека от Microsoft, так же поддерживает множество языков. Не имеет своего тестраннера.\n\nПример использования:\n\n```javascript\n// Подключаем библиотеку\nimport playwright from 'playwright';\n\n(async () => {\n // Тестируем на разных браузеров в цикле\n for (const browserType of ['chromium', 'firefox', 'webkit']) {\n // Запускаем браузер, получаем инстанс браузера\n const browser = await playwright[browserType].launch()\n // Получаем контекст браузера\n const context = await browser.newContext()\n // Получаем инстанс страницы\n const page = await context.newPage()\n // Открываем страницу\n await page.goto('https://mail.ru')\n // Вызываем событие\n await page.click('[data-testid=\"enter-password\"]')\n // Создаем скриншот\n await page.screenshot({ path: `mail-${browserType}.png` })\n // Закрываем браузер\n await browser.close()\n }\n})()\n```\n\nИмитация другого устройства:\n\n```javascript\nimport { webkit, devices } from 'playwright'\n\nconst iPhone11 = devices['iPhone 11 Pro']\n\ndescribe(() => {\n test('Main test', async () => {\n // Запускаем браузер, получаем инстанс браузера\n const browser = await webkit.launch()\n // Получаем контекст устройства, задаём свои настройки\n const context = await browser.newContext({\n ...iPhone11,\n locale: 'en-US',\n geolocation: { longitude: 12.492507, latitude: 41.889938 },\n permissions: ['geolocation'],\n })\n // Получаем инстанс страницы\n const page = await context.newPage()\n // Открываем страницу\n await page.goto('https://maps.google.com')\n // Вызываем событие\n await page.click('text=\"Your location\"')\n // Ждём выполнение запроса\n await page.waitForRequest(/.*preview\\/pwa/)\n // Создаём скриншот\n await page.screeshot({ path: 'iphone-11.png' })\n // Закрываем браузер\n await browser.close()\n })\n})\n```\n\n## Puppeteer\n\nPuppeteer — библиотека с упором на chrome. Синтаксис очень похож на playwright:\n\n```javascript\n// Подключаем библиотеку\nimport puppeteer from 'puppeteer'\n\ndescribe(() => {\n test('Main test', async () => {\n // Запускаем браузер и получаем инстанс браузера\n const browser = await puppeteer.launch()\n // Получаем инстанс страницы\n const page = await browser.newPage()\n // Открываем страницу\n await page.goto('https://mail.ru')\n // Вызываем событие\n await page.click('[data-testid=\"enter-password\"]')\n // Создаем скриншот\n await page.screenshot({ path: 'example.png' })\n\n // Закрываем браузер\n await browser.close()\n })\n})\n```\n"},"id":236,"slug":"frontend-testing-browser","challenges_count":0,"name":"Тестирование фронтенда","allow_indexing":true,"state":"approved","course_state":"finished","pricing_type":"paid","description":"На этом курсе вы изучите тестирование фронтенда. Вы узнаете больше о написании e2e-тестов с использованием веб-драйверов, работе с ошибками и фантомными падениями. В итоге вы научитесь создавать надежные тесты в браузерной среде с помощью паттерна Page Object для уменьшения хрупкости и дублирования. Вы также научитесь изолировать бэкенд и тестировать фронтенд с помощью быстрого testing-library в связке с Jest и JSDOM. Знания из курса помогают программистам избежать ошибок и повысить надежность своих приложений.","kind":"sandbox","updated_at":"2026-01-20T11:44:42.610Z","language":"javascript","duration_cache":7200,"skills":["Писать надежные тесты в браузерной среде","Писать e2e тесты, используя веб-драйверы","Использовать паттерн Page Object","Тестировать фронтенд с помощью testing-library","Работать с асинхронностью"],"keywords":["e2e","page object","JSDOM","testing library","асинхронность"],"lessons_count":8,"cover":"https://hexlet.io/rails/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzEwMywicHVyIjoiYmxvYl9pZCJ9fQ==--8b010297e9086b1093b75ac652d449f074defcb9/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fZmlsbCI6WzYwMCw0MDBdfSwicHVyIjoidmFyaWF0aW9uIn19--6067466c2912ca31a17eddee04b8cf2a38c6ad17/image.png"},"recommendedLandings":[],"lessonMemberUnit":null,"accessToLearnUnitExists":false,"accessToCourseExists":false},"url":"/courses/frontend-testing-browser/lessons/e2e-testing/theory_unit","version":"8f286f6358a90a7bef2263b3a6edf5a90a94fa42","encryptHistory":false,"clearHistory":false}"><style data-mantine-styles="true">:root, :host{--mantine-font-family: Arial, sans-serif;--mantine-font-family-headings: Arial, sans-serif;--mantine-heading-font-weight: normal;--mantine-radius-default: 0rem;--mantine-primary-color-filled: var(--mantine-color-indigo-filled);--mantine-primary-color-filled-hover: var(--mantine-color-indigo-filled-hover);--mantine-primary-color-light: var(--mantine-color-indigo-light);--mantine-primary-color-light-hover: var(--mantine-color-indigo-light-hover);--mantine-primary-color-light-color: var(--mantine-color-indigo-light-color);--mantine-spacing-xxl: calc(4rem * var(--mantine-scale));--mantine-font-size-xs: 12px;--mantine-font-size-sm: 14px;--mantine-font-size-md: 16px;--mantine-font-size-lg: clamp(16.0000px, calc(15.2727px + 0.2273vw), 18.0000px);--mantine-font-size-xl: clamp(16.0000px, calc(14.5455px + 0.4545vw), 20.0000px);--mantine-font-size-display-3: clamp(32.0000px, calc(26.1818px + 1.8182vw), 48.0000px);--mantine-font-size-display-2: clamp(36.0000px, calc(25.8182px + 3.1818vw), 64.0000px);--mantine-font-size-display-1: clamp(40.0000px, calc(25.4545px + 4.5455vw), 80.0000px);--mantine-font-size-h1: clamp(28.0000px, calc(23.6364px + 1.3636vw), 40.0000px);--mantine-font-size-h2: clamp(24.0000px, calc(21.0909px + 0.9091vw), 32.0000px);--mantine-font-size-h3: clamp(20.0000px, calc(17.0909px + 0.9091vw), 28.0000px);--mantine-font-size-h4: clamp(16.0000px, calc(13.0909px + 0.9091vw), 24.0000px);--mantine-font-size-h5: clamp(16.0000px, calc(14.5455px + 0.4545vw), 20.0000px);--mantine-font-size-h6: 1rem;--mantine-primary-color-0: var(--mantine-color-indigo-0);--mantine-primary-color-1: var(--mantine-color-indigo-1);--mantine-primary-color-2: var(--mantine-color-indigo-2);--mantine-primary-color-3: var(--mantine-color-indigo-3);--mantine-primary-color-4: var(--mantine-color-indigo-4);--mantine-primary-color-5: var(--mantine-color-indigo-5);--mantine-primary-color-6: var(--mantine-color-indigo-6);--mantine-primary-color-7: var(--mantine-color-indigo-7);--mantine-primary-color-8: var(--mantine-color-indigo-8);--mantine-primary-color-9: var(--mantine-color-indigo-9);--mantine-color-red-0: #ffeaea;--mantine-color-red-1: #fed4d4;--mantine-color-red-2: #f4a7a8;--mantine-color-red-3: #ec7878;--mantine-color-red-4: #e55050;--mantine-color-red-5: #e03131;--mantine-color-red-6: #e02829;--mantine-color-red-7: #c71a1c;--mantine-color-red-8: #b21218;--mantine-color-red-9: #9c0411;--mantine-color-violet-0: #fce9ff;--mantine-color-violet-1: #f1cfff;--mantine-color-violet-2: #e09bff;--mantine-color-violet-3: #d16fff;--mantine-color-violet-4: #be37fe;--mantine-color-violet-5: #b51afe;--mantine-color-violet-6: #b009ff;--mantine-color-violet-7: #9b00e4;--mantine-color-violet-8: #8a00cc;--mantine-color-violet-9: #7800b3;--mantine-color-indigo-0: #edecff;--mantine-color-indigo-1: #d6d5fe;--mantine-color-indigo-2: #aaa9f4;--mantine-color-indigo-3: #7b79eb;--mantine-color-indigo-4: #5451e4;--mantine-color-indigo-5: #3b37e0;--mantine-color-indigo-6: #2d2adf;--mantine-color-indigo-7: #1f1ec7;--mantine-color-indigo-8: #1819b2;--mantine-color-indigo-9: #0c149e;--mantine-color-cyan-0: #dffdff;--mantine-color-cyan-1: #caf5ff;--mantine-color-cyan-2: #99e8ff;--mantine-color-cyan-3: #64daff;--mantine-color-cyan-4: #3ccffe;--mantine-color-cyan-5: #24c8fe;--mantine-color-cyan-6: #00c2ff;--mantine-color-cyan-7: #00ade4;--mantine-color-cyan-8: #009acd;--mantine-color-cyan-9: #0085b5;--mantine-color-green-0: #e9fdec;--mantine-color-green-1: #d7f6dc;--mantine-color-green-2: #b0eab9;--mantine-color-green-3: #86df94;--mantine-color-green-4: #62d574;--mantine-color-green-5: #4ccf5f;--mantine-color-green-6: #3fcc54;--mantine-color-green-7: #2fb344;--mantine-color-green-8: #25a03b;--mantine-color-green-9: #138a2e;--mantine-color-yellow-0: #fff7e2;--mantine-color-yellow-1: #ffeecd;--mantine-color-yellow-2: #ffdc9c;--mantine-color-yellow-3: #ffc966;--mantine-color-yellow-4: #feb93a;--mantine-color-yellow-5: #feae1e;--mantine-color-yellow-6: #ffa90f;--mantine-color-yellow-8: #ca8200;--mantine-color-yellow-9: #af7000;--mantine-h1-font-size: clamp(28.0000px, calc(23.6364px + 1.3636vw), 40.0000px);--mantine-h1-font-weight: normal;--mantine-h2-font-size: clamp(24.0000px, calc(21.0909px + 0.9091vw), 32.0000px);--mantine-h2-font-weight: normal;--mantine-h3-font-size: clamp(20.0000px, calc(17.0909px + 0.9091vw), 28.0000px);--mantine-h3-font-weight: normal;--mantine-h4-font-size: clamp(16.0000px, calc(13.0909px + 0.9091vw), 24.0000px);--mantine-h4-font-weight: normal;--mantine-h5-font-size: clamp(16.0000px, calc(14.5455px + 0.4545vw), 20.0000px);--mantine-h5-font-weight: normal;--mantine-h6-font-size: 1rem;--mantine-h6-font-weight: normal;}
:root[data-mantine-color-scheme="dark"], :host([data-mantine-color-scheme="dark"]){--mantine-color-anchor: var(--mantine-color-text);--mantine-color-dimmed: #495057;--mantine-color-dark-filled: var(--mantine-color-dark-5);--mantine-color-dark-filled-hover: var(--mantine-color-dark-6);--mantine-color-dark-light: rgba(105, 105, 105, 0.15);--mantine-color-dark-light-hover: rgba(105, 105, 105, 0.2);--mantine-color-dark-light-color: var(--mantine-color-dark-0);--mantine-color-dark-outline: var(--mantine-color-dark-1);--mantine-color-dark-outline-hover: rgba(184, 184, 184, 0.05);--mantine-color-gray-filled: var(--mantine-color-gray-5);--mantine-color-gray-filled-hover: var(--mantine-color-gray-6);--mantine-color-gray-light: rgba(222, 226, 230, 0.15);--mantine-color-gray-light-hover: rgba(222, 226, 230, 0.2);--mantine-color-gray-light-color: var(--mantine-color-gray-0);--mantine-color-gray-outline: var(--mantine-color-gray-1);--mantine-color-gray-outline-hover: rgba(241, 243, 245, 0.05);--mantine-color-red-filled: var(--mantine-color-red-5);--mantine-color-red-filled-hover: var(--mantine-color-red-6);--mantine-color-red-light: rgba(236, 120, 120, 0.15);--mantine-color-red-light-hover: rgba(236, 120, 120, 0.2);--mantine-color-red-light-color: var(--mantine-color-red-0);--mantine-color-red-outline: var(--mantine-color-red-1);--mantine-color-red-outline-hover: rgba(254, 212, 212, 0.05);--mantine-color-pink-filled: var(--mantine-color-pink-5);--mantine-color-pink-filled-hover: var(--mantine-color-pink-6);--mantine-color-pink-light: rgba(250, 162, 193, 0.15);--mantine-color-pink-light-hover: rgba(250, 162, 193, 0.2);--mantine-color-pink-light-color: var(--mantine-color-pink-0);--mantine-color-pink-outline: var(--mantine-color-pink-1);--mantine-color-pink-outline-hover: rgba(255, 222, 235, 0.05);--mantine-color-grape-filled: var(--mantine-color-grape-5);--mantine-color-grape-filled-hover: var(--mantine-color-grape-6);--mantine-color-grape-light: rgba(229, 153, 247, 0.15);--mantine-color-grape-light-hover: rgba(229, 153, 247, 0.2);--mantine-color-grape-light-color: var(--mantine-color-grape-0);--mantine-color-grape-outline: var(--mantine-color-grape-1);--mantine-color-grape-outline-hover: rgba(243, 217, 250, 0.05);--mantine-color-violet-filled: var(--mantine-color-violet-5);--mantine-color-violet-filled-hover: var(--mantine-color-violet-6);--mantine-color-violet-light: rgba(209, 111, 255, 0.15);--mantine-color-violet-light-hover: rgba(209, 111, 255, 0.2);--mantine-color-violet-light-color: var(--mantine-color-violet-0);--mantine-color-violet-outline: var(--mantine-color-violet-1);--mantine-color-violet-outline-hover: rgba(241, 207, 255, 0.05);--mantine-color-indigo-filled: var(--mantine-color-indigo-5);--mantine-color-indigo-filled-hover: var(--mantine-color-indigo-6);--mantine-color-indigo-light: rgba(123, 121, 235, 0.15);--mantine-color-indigo-light-hover: rgba(123, 121, 235, 0.2);--mantine-color-indigo-light-color: var(--mantine-color-indigo-0);--mantine-color-indigo-outline: var(--mantine-color-indigo-1);--mantine-color-indigo-outline-hover: rgba(214, 213, 254, 0.05);--mantine-color-blue-filled: var(--mantine-color-blue-5);--mantine-color-blue-filled-hover: var(--mantine-color-blue-6);--mantine-color-blue-light: rgba(116, 192, 252, 0.15);--mantine-color-blue-light-hover: rgba(116, 192, 252, 0.2);--mantine-color-blue-light-color: var(--mantine-color-blue-0);--mantine-color-blue-outline: var(--mantine-color-blue-1);--mantine-color-blue-outline-hover: rgba(208, 235, 255, 0.05);--mantine-color-cyan-filled: var(--mantine-color-cyan-5);--mantine-color-cyan-filled-hover: var(--mantine-color-cyan-6);--mantine-color-cyan-light: rgba(100, 218, 255, 0.15);--mantine-color-cyan-light-hover: rgba(100, 218, 255, 0.2);--mantine-color-cyan-light-color: var(--mantine-color-cyan-0);--mantine-color-cyan-outline: var(--mantine-color-cyan-1);--mantine-color-cyan-outline-hover: rgba(202, 245, 255, 0.05);--mantine-color-teal-filled: var(--mantine-color-teal-5);--mantine-color-teal-filled-hover: var(--mantine-color-teal-6);--mantine-color-teal-light: rgba(99, 230, 190, 0.15);--mantine-color-teal-light-hover: rgba(99, 230, 190, 0.2);--mantine-color-teal-light-color: var(--mantine-color-teal-0);--mantine-color-teal-outline: var(--mantine-color-teal-1);--mantine-color-teal-outline-hover: rgba(195, 250, 232, 0.05);--mantine-color-green-filled: var(--mantine-color-green-5);--mantine-color-green-filled-hover: var(--mantine-color-green-6);--mantine-color-green-light: rgba(134, 223, 148, 0.15);--mantine-color-green-light-hover: rgba(134, 223, 148, 0.2);--mantine-color-green-light-color: var(--mantine-color-green-0);--mantine-color-green-outline: var(--mantine-color-green-1);--mantine-color-green-outline-hover: rgba(215, 246, 220, 0.05);--mantine-color-lime-filled: var(--mantine-color-lime-5);--mantine-color-lime-filled-hover: var(--mantine-color-lime-6);--mantine-color-lime-light: rgba(192, 235, 117, 0.15);--mantine-color-lime-light-hover: rgba(192, 235, 117, 0.2);--mantine-color-lime-light-color: var(--mantine-color-lime-0);--mantine-color-lime-outline: var(--mantine-color-lime-1);--mantine-color-lime-outline-hover: rgba(233, 250, 200, 0.05);--mantine-color-yellow-filled: var(--mantine-color-yellow-5);--mantine-color-yellow-filled-hover: var(--mantine-color-yellow-6);--mantine-color-yellow-light: rgba(255, 201, 102, 0.15);--mantine-color-yellow-light-hover: rgba(255, 201, 102, 0.2);--mantine-color-yellow-light-color: var(--mantine-color-yellow-0);--mantine-color-yellow-outline: var(--mantine-color-yellow-1);--mantine-color-yellow-outline-hover: rgba(255, 238, 205, 0.05);--mantine-color-orange-filled: var(--mantine-color-orange-5);--mantine-color-orange-filled-hover: var(--mantine-color-orange-6);--mantine-color-orange-light: rgba(255, 192, 120, 0.15);--mantine-color-orange-light-hover: rgba(255, 192, 120, 0.2);--mantine-color-orange-light-color: var(--mantine-color-orange-0);--mantine-color-orange-outline: var(--mantine-color-orange-1);--mantine-color-orange-outline-hover: rgba(255, 232, 204, 0.05);--app-cta-gradient: linear-gradient(90deg, var(--mantine-color-blue-9) 0%, var(--mantine-color-cyan-7) 100%);--app-color-surface: #2e2e2e;}
:root[data-mantine-color-scheme="light"], :host([data-mantine-color-scheme="light"]){--mantine-color-anchor: var(--mantine-color-text);--mantine-color-dimmed: #495057;--mantine-color-red-light: rgba(224, 40, 41, 0.1);--mantine-color-red-light-hover: rgba(224, 40, 41, 0.12);--mantine-color-red-outline-hover: rgba(224, 40, 41, 0.05);--mantine-color-violet-light: rgba(176, 9, 255, 0.1);--mantine-color-violet-light-hover: rgba(176, 9, 255, 0.12);--mantine-color-violet-outline-hover: rgba(176, 9, 255, 0.05);--mantine-color-indigo-light: rgba(45, 42, 223, 0.1);--mantine-color-indigo-light-hover: rgba(45, 42, 223, 0.12);--mantine-color-indigo-outline-hover: rgba(45, 42, 223, 0.05);--mantine-color-cyan-light: rgba(0, 194, 255, 0.1);--mantine-color-cyan-light-hover: rgba(0, 194, 255, 0.12);--mantine-color-cyan-outline-hover: rgba(0, 194, 255, 0.05);--mantine-color-green-light: rgba(63, 204, 84, 0.1);--mantine-color-green-light-hover: rgba(63, 204, 84, 0.12);--mantine-color-green-outline-hover: rgba(63, 204, 84, 0.05);--mantine-color-yellow-light: rgba(255, 169, 15, 0.1);--mantine-color-yellow-light-hover: rgba(255, 169, 15, 0.12);--mantine-color-yellow-outline-hover: rgba(255, 169, 15, 0.05);--app-color-surface: #f1f3f5;--app-cta-gradient: linear-gradient(90deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-5) 100%);}</style><style data-mantine-styles="classes">@media (max-width: 35.99375em) {.mantine-visible-from-xs {display: none !important;}}@media (min-width: 36em) {.mantine-hidden-from-xs {display: none !important;}}@media (max-width: 47.99375em) {.mantine-visible-from-sm {display: none !important;}}@media (min-width: 48em) {.mantine-hidden-from-sm {display: none !important;}}@media (max-width: 61.99375em) {.mantine-visible-from-md {display: none !important;}}@media (min-width: 62em) {.mantine-hidden-from-md {display: none !important;}}@media (max-width: 74.99375em) {.mantine-visible-from-lg {display: none !important;}}@media (min-width: 75em) {.mantine-hidden-from-lg {display: none !important;}}@media (max-width: 87.99375em) {.mantine-visible-from-xl {display: none !important;}}@media (min-width: 88em) {.mantine-hidden-from-xl {display: none !important;}}</style><div style="position:absolute;top:0rem" class=""></div><div style="max-width:var(--container-size-xl);height:100%;min-height:0rem" class=""><style data-mantine-styles="inline">.__m__-_R_5ub_{--grid-gutter:0rem;}</style><div style="height:100%;min-height:0rem" class="m_410352e9 mantine-Grid-root __m__-_R_5ub_"><div class="m_dee7bd2f mantine-Grid-inner" style="height:100%"><style data-mantine-styles="inline">.__m__-_R_rdub_{--col-flex-grow:auto;--col-flex-basis:91.66666666666667%;--col-max-width:91.66666666666667%;}@media(min-width: 48em){.__m__-_R_rdub_{--col-flex-grow:auto;--col-flex-basis:83.33333333333334%;--col-max-width:83.33333333333334%;}}</style><div style="min-width:0rem;height:100%;min-height:0rem;display:flex" class="m_96bdd299 mantine-Grid-col __m__-_R_rdub_"><style data-mantine-styles="inline">.__m__-_R_6qrdub_{margin-top:0rem;padding-inline:var(--mantine-spacing-xs);width:100%;}@media(min-width: 48em){.__m__-_R_6qrdub_{margin-top:var(--mantine-spacing-xl);width:80%;}}@media(min-width: 62em){.__m__-_R_6qrdub_{padding-inline:var(--mantine-spacing-xl);}}</style><div style="margin-inline:auto;max-width:var(--mantine-breakpoint-xl)" class="__m__-_R_6qrdub_"><div style="color:var(--mantine-color-dimmed)" class="m_4451eb3a mantine-Center-root" data-inline="true"><div style="--ti-size:var(--ti-size-xs);--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;margin-inline-end:calc(0.125rem * var(--mantine-scale));color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent" data-size="xs"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-lock "><path d="M5 13a2 2 0 0 1 2 -2h10a2 2 0 0 1 2 2v6a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2v-6"></path><path d="M11 16a1 1 0 1 0 2 0a1 1 0 0 0 -2 0"></path><path d="M8 11v-4a4 4 0 1 1 8 0v4"></path></svg></div><p style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Тестирование фронтенда</p></div><h1 style="--title-fw:var(--mantine-h1-font-weight);--title-lh:var(--mantine-h1-line-height);--title-fz:var(--mantine-h1-font-size);margin-bottom:var(--mantine-spacing-xl)" class="m_8a5d1357 mantine-Title-root" data-order="1">Теория: E2E Тестирование</h1><script type="application/ld+json">{"@context":"https://schema.org","@type":"LearningResource","name":"E2E Тестирование","inLanguage":"ru","isPartOf":{"@type":"LearningResource","name":"Тестирование фронтенда"},"isAccessibleForFree":"False","hasPart":{"@type":"WebPageElement","isAccessibleForFree":"False","cssSelector":".paywalled"}}</script><div class=""><div style="--alert-color:var(--mantine-color-indigo-light-color);margin-bottom:var(--mantine-spacing-lg);font-size:var(--mantine-font-size-lg)" class="m_66836ed3 mantine-Alert-root" id="mantine-_R_remqrdub_" role="alert" aria-describedby="mantine-_R_remqrdub_-body" aria-labelledby="mantine-_R_remqrdub_-title"><div class="m_a5d60502 mantine-Alert-wrapper"><div class="m_667f2a6a mantine-Alert-icon"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-rocket "><path d="M4 13a8 8 0 0 1 7 7a6 6 0 0 0 3 -5a9 9 0 0 0 6 -8a3 3 0 0 0 -3 -3a9 9 0 0 0 -8 6a6 6 0 0 0 -5 3"></path><path d="M7 14a6 6 0 0 0 -3 6a6 6 0 0 0 6 -3"></path><path d="M14 9a1 1 0 1 0 2 0a1 1 0 1 0 -2 0"></path></svg></div><div class="m_667c2793 mantine-Alert-body"><div class="m_6a03f287 mantine-Alert-title"><span id="mantine-_R_remqrdub_-title" class="m_698f4f23 mantine-Alert-label">Полный доступ к материалам</span></div><div id="mantine-_R_remqrdub_-body" class="m_7fa78076 mantine-Alert-message"><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:space-between;--group-wrap:wrap" class="m_4081bf90 mantine-Group-root"><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Зарегистрируйтесь и получите доступ к этому и десяткам других курсов</p><a style="--button-height:var(--button-height-xs);--button-padding-x:var(--button-padding-x-xs);--button-fz:var(--mantine-font-size-xs);--button-bg:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-hover:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-color:var(--mantine-color-white);--button-bd:none" class="mantine-focus-auto mantine-active m_77c9d27d mantine-Button-root m_87cf2631 mantine-UnstyledButton-root" data-variant="gradient" data-size="xs" href="/u/new"><span class="m_80f1301b mantine-Button-inner"><span class="m_811560b9 mantine-Button-label">Зарегистрироваться</span></span></a></div></div></div></div></div><div class="paywalled m_d08caa0 mantine-Typography-root"><h1 id="heading-1-1">E2E Тестирование</h1>
<p><code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">jest-puppeteer</code> - библиотека для тестирования с открытым исходным кодом</p>
<p>Пример конфига для <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">jest</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// jest.config.js
{
preset: 'jest-puppeteer',
globals: {
URL: 'http://localhost:8080'
},
testMatch: [
'**/test/**/*.test.js'
],
verbose: true
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример конфига для <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">jest-puppeteer</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// jest-puppeteer.config.js
// Вместо puppeteer.launch()
{
launch: {
headless: process.env.HEADLESS !== 'false',
slowMo: process.env.SLOWMO ? process.env.SLOWMO : 0,
devtools: true
}
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример теста:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">const timeout = process.env.SLOWMO ? 30000 : 10000
beforeAll(async () => {
// Перед каждым тестом открываем страницу
await page.goto(URL, { waitUntil: 'domcontentloaded' })
})
describe('Test header and title of the page', () => {
test('Title of the page', async () => {
// Получаем заголовок
const title = await page.title()
// Проверяем заголовок
expect(title).toBe('E2E Puppeteer Testing')
},
// Задаём таймаут теста
timeout,
)
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Метод <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">evaluate()</code> позволяет выполнить переданную фукнкцию, как если бы она была выполнена на странице. Первым параметром принимает функцию, которую нужно выполнить, а остальные параметры передаются в качестве аргументов в выполняемую функцию:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">test('Header of the page', async () => {
// Получаем элемент
const h1Handle = await page.$('.learn_header')
// Вызываем evaluate
const html = await page.evaluate(
// Передаём функцию, которую нужно выполнить
h1Handle => h1Handle.innerHTML,
// Следующим параметром передаём аргумент
h1Handle,
)
// Проверяем результат
expect(html).toBe('What will you learn')
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример теста для формы регистрации:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">test('Submit form with valid data', async () => {
// Переходим на форму регистрации
await page.click('[href="/signin"]')
// Ждём загрузки формы
await page.waitForSelector('form')
// Вводим логин
await page.type('#name', 'Rick')
// Вводим пароль
await page.type('#password', 'szechuanSauce')
// Вводим потверждение пароля
await page.type('#repeat_password', 'szechuanSauce')
// Отправляем форму
await page.click('[type="submit"]')
// Ждем завершения отправки
await page.waitForSelector('.success')
// Получаем содержимое сообщения
const html = await page.$eval('.success', el => el.innerHTML)
// Проверяем сообщение
expect(html).toBe('Successfully signed up!')
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример создания скриншотов и изменение размера страницы:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// screenshots.test.js
test('Take screenshot of home page', async () => {
// Задаем размеры страницы
await page.setViewport({ width: 1920, height: 1080 })
// Создаем скриншот
await page.screenshot({
path: './src/test/screenshots/home.jpg',
fullpage: true,
type: 'jpeg',
})
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Для проверки разных размеров страницы, удобно использовать <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">test.each</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// global
const dimentions = [
[600, 1200],
[640, 1200],
[600, 1380],
[640, 1380],
]
// screenshots.test.js
// Проходимся по каждому размеру
test.each(dimentions)('Take screenshot of home page with size %p x %p', async ([height, width]) => {
// Задаем размеры страницы
await page.setViewport({ width, height })
// Сохраняем скриншот
await page.screenshot({
path: `./src/test/screenshots/home-${height}x${width}.jpg`,
fullpage: true,
type: 'jpeg',
})
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример эмуляции другого устройства:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Подключаем модуль для имитации устройств
import devices from 'puppeteer/DeviceDescriptors'
test('Emulate Mobile Device And take screenshot', async () => {
// Открываем страницу
await page.goto(`${URL}/login`, { waitUntil: 'domcontentloaded' })
const iPhonex = devices['iPhone X']
// Задаем эмуляцию устройства
await page.emulate(iPhonex)
// Задаем настройки устройства
await page.setViewport({ width: 375, height: 812, isMobile: true })
// Создаем скриншот
await page.screenshot({
path: './src/test/screenshots/home-mobile.jpg',
fullpage: true,
type: 'jpeg',
})
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример прерывания запроса:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">test('Intercept Request', async () => {
// Активируем перехват запросов
await page.setRequestInterception(true)
page.on('request', (interceptedRequest) => {
// Перехватываем запросы и обрабатываем
if (interceptedRequest.url().endsWith('.png')) {
interceptedRequest.abort()
}
else {
interceptedRequest.continue()
}
})
await page.reload({ waitUntil: 'networkidle0' })
await page.setRequestInterception(false)
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-2">Puppeteer</h3>
<p>Тесты и браузер имеют разную среду. Чтобы запустить код в контексте браузера, нужно использовать <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">evaluate()</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Скролл страницы
await page.evaluate((x, y) => window.scrollBy(x, y), x, y);
// Получение переменной
await page.evaluate(() => variable));</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример извлечения элементов:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">const imageUrls = await page.evaluate(() => {
// Внутри evaluate обращаемся напрямую к DOM
const images = document.querySelectorAll('article img')
const urls = Array.from(images).map(({ src }) => ({ src }))
return urls
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Тоже самое, но с передачей селектора в переменной:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Сохраняем селектор
const imageSelector = 'article img'
const imageUrls = await page.evaluate((selector) => {
// selector передается через параметр
const images = document.querySelectorAll(selector)
const urls = Array.from(images).map(({ src }) => ({ src }))
return urls
}, imageSelector) // Передаём селектор</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Еще один пример:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Получаем элемент
const bodyHandle = await page.$('body')
// Извлекаем содержимое элемента с помощью evaluate
const html = await page.evaluate(body => body.innerHTML, bodyHandle)
await bodyHandle.dispose()</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Playwright также имеет метод <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">evaluate()</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Обращаемся к документу с помощью evaluate
const href = await page.evaluate(() => document.location.href)
// Выполнение запроса
const status = await page.evaluate(async () => {
const response = await fetch(location.href)
return response.status
})
// Получаем кнопку
const button = await page.$('button')
// Извлекаем содержимое элемента с помощью evaluate
const buttonText = await page.evaluate(button => button.textContent, button)</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Как не надо делать:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">const user = { name: 'Ruslan', age: 77 }
const result = await page.evaluate(() => {
// Доступа к user нет, замыкание не работает
window.myApp.use(user)
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Правильный способ:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">const user = { name: 'Ruslan', age: 77 }
const result = await page.evaluate((user) => {
window.myApp.use(user)
}, user) // Передаём user через параметры evaluate</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h1 id="heading-1-3">Работа с асинхронностью</h1>
<p>Есть несколько событий, которые мы ожидаем:</p>
<ul>
<li>загрузка страницы</li>
<li>изменения на странице (изменения в DOM-дереве)</li>
<li>запросы</li>
<li>кастомные ожидания</li>
</ul>
<h2 id="heading-2-4">Ожидание загрузки страницы</h2>
<h3 id="heading-3-5">Selenium</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Переходим на страницу
driver.get('http://localhost:3000')
driver.wait(function () {
return driver
// Запускаем скрипт
.executeScript('return document.readyState')
.then(function (readyState) {
// Проверяем что все в порядке
return readyState === 'complete'
})
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-6">Cypress</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Вся работа происходит внутри метода
cy.visit('http://localhost:3000')</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-7">Playwright and Puppeteer</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Тоже самое в playwright и puppeteer
await page.goto('http://localhost:3000')</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h2 id="heading-2-8">Ожидания изменений на странице</h2>
<h3 id="heading-3-9">Selenium</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Ожидание элемента
driver.wait(until.elementLocated(By.id('#form-feedback')), 4000)
// Ожидание элемента с определенным контентом
const el = driver.wait(until.elementLocated(By.id('#form-feedback')), 4000)
wait.until(ExpectedConditions.textToBePresentInElement(el, 'Success'))</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-10">Cypress</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Ожидание элемента
cy.get('#form-feedback', { timeout: 5000 }) // 4 секунды по умолчанию
// Ожидание элемента с определенным контентом
cy.get('#form-feedback').contains('Success')</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-11">Playwright и Puppeteer</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Ожидание элемента
await page.waitForSelector('#form-feedback', { timeout: 5000 }) // 30 секунд по умолчанию
// Ожидание элемента с определенным контентом
await page.waitForFunction((selector) => {
const el = document.querySelector(selector)
return el && el.textContent === 'Success'
},
{},
'#form-feedback',
)</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h2 id="heading-2-12">Ожидание запросов</h2>
<h3 id="heading-3-13">Selenium</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Указываем url, за которым хотим следить
driver.get('https://mail.ru/api/users')
const mydynamicelement = (new webdriverwait(driver, 10))
.until(expectedconditions.presenceofelementlocated(by.id('mydynamicelement')))</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-14">Cypress</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">cy.intercept('https://mail.ru/api/users').as('users')
cy.wait('@users')
.its('response.body')
.then((body) => {
// ...
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-15">Playwright and Puppeteer</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Указываем url, на который ожидаем запрос
await page.waitForRequest('https://mail.ru/api/users')
// Указываем url, на который ожидаем ответ
const response = await page.waitForResponse(
'https://mail.ru/api/users',
)
const body = response.json()</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h2 id="heading-2-16">Ожидание кастомных изменений</h2>
<p>Мы хотим дождаться, пока глобальной переменной <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">user</code> не будет присвоено значение <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">Ivan</code></p>
<h3 id="heading-3-17">Selenium</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">browser.executeAsyncScript(`
window.setTimeout(function() {
if(window.user === 'Ivan') {
arguments[arguments.length - 1]();
}
}, 300);
`)</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-18">Cypress</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Используется плагин cypress-wait-until
cy.waitUntil(() => cy.window().then(win => win.user === 'Ivan'))</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h3 id="heading-3-19">Playwright и Puppeteer</h3>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">await page.waitForFunction('window.user === "Ivan"')</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<h2 id="heading-2-20">Итог</h2>
<p>Ниже плохой пример, в нем используется магическое число и код останавливается на какое-то время. Не факт, что обработка события успеет завершиться к этому времени</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">test('can logout', async () => {
await page.click('#menu div > a');
sleep 500;
// ...
});</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Ниже правильный пример. Указываем какие элементы ожидать:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">test('can logout', async () => {
await page.click('[data-testid="userMenuButton"]')
await page.waitForSelector('[data-testid="userMenuOpen"]')
await page.click('[data-testid="logoutLink"]')
await page.waitForSelector('[data-testid="userLoginForm"]')
})</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div></div></div></div></div><style data-mantine-styles="inline">.__m__-_R_1bdub_{--col-flex-grow:auto;--col-flex-basis:8.333333333333334%;--col-max-width:8.333333333333334%;}@media(min-width: 48em){.__m__-_R_1bdub_{--col-flex-grow:auto;--col-flex-basis:16.666666666666668%;--col-max-width:16.666666666666668%;}}</style><div style="min-width:0rem;height:100%;min-height:0rem" class="m_96bdd299 mantine-Grid-col __m__-_R_1bdub_"><div style="margin-inline:var(--mantine-spacing-xs)" class="mantine-visible-from-sm"><a style="--button-color:var(--mantine-color-white);margin-bottom:var(--mantine-spacing-lg);text-decoration:none" class="mantine-focus-auto m_849cf0da mantine-focus-auto m_77c9d27d mantine-Button-root m_87cf2631 mantine-UnstyledButton-root m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/courses/frontend-testing-browser/lessons/e2e-testing/finish_unit?unit=theory" data-disabled="true" data-block="true" disabled=""><span class="m_80f1301b mantine-Button-inner"><span class="m_811560b9 mantine-Button-label"><span style="margin-inline-end:var(--mantine-spacing-xs)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Дальше</span>→</span></span></a><a style="padding-inline:0rem" class="mantine-focus-auto m_f0824112 mantine-NavLink-root m_87cf2631 mantine-UnstyledButton-root"><span class="m_690090b5 mantine-NavLink-section" data-position="left"><div style="--ti-size:var(--ti-size-sm);--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent" data-size="sm"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-list-numbers "><path d="M11 6h9"></path><path d="M11 12h9"></path><path d="M12 18h8"></path><path d="M4 16a2 2 0 1 1 4 0c0 .591 -.5 1 -1 1.5l-3 2.5h4"></path><path d="M6 10v-6l-2 2"></path></svg></div></span><div class="m_f07af9d2 mantine-NavLink-body"><span class="m_1f6ac4c4 mantine-NavLink-label">Навигация по теме</span><span class="m_57492dcc mantine-NavLink-description">Теория</span></div><span class="m_690090b5 mantine-NavLink-section" data-position="right"></span></a><div style="margin-block:var(--mantine-spacing-lg)" class="m_3eebeb36 mantine-Divider-root" data-orientation="horizontal" role="separator"></div><div style="margin-block:var(--mantine-spacing-lg)" class=""><div style="justify-content:space-between;margin-bottom:calc(0.1875rem * var(--mantine-scale));color:var(--mantine-color-dimmed);font-size:var(--mantine-font-size-xs)" class="m_8bffd616 mantine-Flex-root __m__-_R_qimrbdub_"><p style="font-size:var(--mantine-font-size-xs)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Завершено</p><p style="font-size:var(--mantine-font-size-xs)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">0 / 8</p></div><div style="--progress-size:var(--progress-size-sm)" class="m_db6d6462 mantine-Progress-root" data-size="sm"><div style="--progress-section-size:0%;--progress-section-color:var(--mantine-color-gray-filled)" class="m_2242eb65 mantine-Progress-section" role="progressbar" aria-valuemax="100" aria-valuemin="0" aria-valuenow="0" aria-valuetext="0%"></div></div></div><button style="padding-inline:0rem" class="mantine-focus-auto m_f0824112 mantine-NavLink-root m_87cf2631 mantine-UnstyledButton-root" type="button"><span class="m_690090b5 mantine-NavLink-section" data-position="left"><div style="--ti-size:var(--ti-size-sm);--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent" data-size="sm"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-message "><path d="M8 9h8"></path><path d="M8 13h6"></path><path d="M18 4a3 3 0 0 1 3 3v8a3 3 0 0 1 -3 3h-5l-5 3v-3h-2a3 3 0 0 1 -3 -3v-8a3 3 0 0 1 3 -3h12"></path></svg></div></span><div class="m_f07af9d2 mantine-NavLink-body"><span class="m_1f6ac4c4 mantine-NavLink-label">Обсуждения (архив)</span><span class="m_57492dcc mantine-NavLink-description"></span></div></button><div style="--toc-bg:var(--mantine-color-blue-light);--toc-color:var(--mantine-color-blue-light-color);--toc-size:var(--mantine-font-size-sm);--toc-radius:var(--mantine-radius-sm);margin-top:var(--mantine-spacing-xl)" class="m_bcaa9990 mantine-TableOfContents-root" data-variant="light" data-size="sm"></div></div><div class="mantine-hidden-from-sm"><div style="--stack-gap:0rem;--stack-align:stretch;--stack-justify:flex-start" class="m_6d731127 mantine-Stack-root"><a style="--button-color:var(--mantine-color-white);margin-bottom:var(--mantine-spacing-xs);padding:0rem;text-decoration:none" class="mantine-focus-auto m_849cf0da mantine-focus-auto m_77c9d27d mantine-Button-root m_87cf2631 mantine-UnstyledButton-root m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/courses/frontend-testing-browser/lessons/e2e-testing/finish_unit?unit=theory" data-disabled="true" data-block="true" disabled=""><span class="m_80f1301b mantine-Button-inner"><span class="m_811560b9 mantine-Button-label">→</span></span></a><button style="--ai-size:var(--ai-size-sm);--ai-bg:transparent;--ai-hover:var(--mantine-color-indigo-light-hover);--ai-color:var(--mantine-color-indigo-light-color);--ai-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;padding-block:var(--mantine-spacing-lg);color:inherit;width:100%" class="mantine-focus-auto m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="subtle" data-size="sm" data-disabled="true" type="button" disabled=""><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-list-numbers "><path d="M11 6h9"></path><path d="M11 12h9"></path><path d="M12 18h8"></path><path d="M4 16a2 2 0 1 1 4 0c0 .591 -.5 1 -1 1.5l-3 2.5h4"></path><path d="M6 10v-6l-2 2"></path></svg></span></button><button style="--ai-size:var(--ai-size-sm);--ai-bg:transparent;--ai-hover:var(--mantine-color-indigo-light-hover);--ai-color:var(--mantine-color-indigo-light-color);--ai-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;padding-block:var(--mantine-spacing-lg);color:inherit;width:100%" class="mantine-focus-auto mantine-active m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="subtle" data-size="sm" type="button"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-message "><path d="M8 9h8"></path><path d="M8 13h6"></path><path d="M18 4a3 3 0 0 1 3 3v8a3 3 0 0 1 -3 3h-5l-5 3v-3h-2a3 3 0 0 1 -3 -3v-8a3 3 0 0 1 3 -3h12"></path></svg></span></button></div></div></div></div></div></div></div>
</main>
<footer class="bg-dark fw-light text-light px-3 py-5">
<div class="row small">
<div class="col-12 col-sm-6 col-md-3">
<div class="h5 mb-3">Хекслет</div>
<ul class="list-unstyled">
<li>
<a class="nav-link link-light py-1 ps-0" href="/pages/about">О нас</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/testimonials">Отзывы</a>
</li>
<li>
<span class="nav-link link-light py-1 ps-0 external-link" data-href="https://b2b.hexlet.io" role="button">Корпоративное обучение</span>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/blog">Блог</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/qna">Вопросы и ответы</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/glossary">Глоссарий</a>
</li>
<li>
<span class="nav-link link-light py-1 ps-0 external-link" data-href="https://help.hexlet.io" data-target="_blank" role="button">Справка</span>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" target="_blank" rel="noopener noreferrer" href="/map">Карта сайта</a>
</li>
</ul>
</div>
<div class="col-12 col-sm-6 col-md-3">
<div class="h5 fw-normal mb-3">Направления</div>
<ul class="list-unstyled">
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_devops">DevOps
</a></li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_data_analytics">Аналитика
</a></li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_backend_development">Бэкенд
</a></li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_programming">Программирование
</a></li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_testing">Тестирование
</a></li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/courses_front_end_dev">Фронтенд
</a></li>
</ul>
</div>
<div class="col-12 col-sm-6 col-md-3">
<div class="h5">Профессии</div>
<ul class="list-unstyled">
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/devops-engineer-from-scratch">DevOps-инженер с нуля</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/go">Go-разработчик</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/java">Java-разработчик</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/python">Python-разработчик </a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/data-analytics">Аналитик данных</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/qa-engineer">Инженер по ручному тестированию</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/php">РНР-разработчик</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/frontend">Фронтенд-разработчик</a>
</li>
</ul>
</div>
<div class="col-12 col-sm-6 col-md-3">
<div class="h5">Навыки</div>
<ul class="list-unstyled">
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/python-django-developer">Django</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/docker">Docker</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/php-laravel-developer">Laravel</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/postman">Postman</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/js-react-developer">React</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/js-rest-api">REST API в Node.js</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/spring-boot">Spring Boot</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/programs/typescript">Typescript</a>
</li>
</ul>
</div>
</div>
<hr>
<div class="row">
<div class="col-12 col-sm-4 col-md-2">
<div class="fs-4">
<ul class="list-unstyled d-flex">
<li class="me-3">
<a aria-label="Telegram" target="_blank" class="link-light" rel="noopener noreferrer nofollow" href="https://t.me/hexlet_ru"><span class="bi bi-telegram"></span>
</a></li>
<li>
<a aria-label="Youtube" target="_blank" class="link-light" rel="noopener noreferrer nofollow" href="https://www.youtube.com/user/HexletUniversity"><span class="bi bi-youtube"></span>
</a></li>
</ul>
</div>
<div class="mb-2 d-flex flex-column">
<a class="link-light text-decoration-none" rel="nofollow" href="mailto:support@hexlet.io">support@hexlet.io</a>
<a class="link-light text-decoration-none py-2" target="_blank" href="https://t.me/hexlet_help_bot">t.me/hexlet_help_bot</a>
</div>
<ul class="list-unstyled d-flex">
<li class="me-3">
<span class="link-light text-decoration-none opacity-50 x-font-size-18 external-link" rel="nofollow" data-href="https://hexlet.io/locale/switch?new_locale=en" data-target="_self" role="button"><span class="my-auto">EN</span>
</span></li>
<li class="me-3">
<span class="link-light text-decoration-none opacity-50 x-font-size-18 opacity-100 external-link" rel="nofollow" data-href="https://ru.hexlet.io/locale/switch?new_locale=ru" data-target="_self" role="button"><span class="my-auto">RU</span>
</span></li>
<li class="me-3">
<span class="link-light text-decoration-none opacity-50 x-font-size-18 external-link" rel="nofollow" data-href="https://kz.hexlet.io/locale/switch?new_locale=kz" data-target="_self" role="button"><span class="my-auto">KZ</span>
</span></li>
</ul>
</div>
<div class="col-12 col-sm-4 col-md-3">
<ul class="list-unstyled fs-4">
<li class="mb-3">
<a class="link-light text-decoration-none" href="tel:8%20800%20100%2022%2047">8 800 100 22 47</a>
<span class="d-block opacity-50 small">бесплатно по РФ</span>
</li>
<li>
<a class="link-light text-decoration-none" href="tel:%2B7%20495%20085%2021%2062">+7 495 085 21 62</a>
<span class="d-block opacity-50 small">бесплатно по Москве</span>
</li>
</ul>
</div>
<div class="col-12 col-sm-4 col-md-3">
<div class="small mb-3">Образовательные услуги оказываются на основании Л035-01298-77/01989008 от 14.03.2025</div>
<ul class="list-unstyled small">
<li>
<a class="nav-link link-light py-1 ps-0" href="/pages/legal">Правовая информация</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/pages/offer">Оферта</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/pages/license">Лицензия</a>
</li>
<li>
<a class="nav-link link-light py-1 ps-0" href="/pages/contacts">Контакты</a>
</li>
</ul>
</div>
<div class="col-12 col-sm-12 col-md-4 small">
<div class="mb-2">
<div>ООО «<a href="/" class="text-decoration-none link-light">Хекслет Рус</a>»</div>
<div>108813 г. Москва, вн.тер.г. поселение Московский,</div>
<div>г. Московский, ул. Солнечная, д. 3А, стр. 1, помещ. 20Б/3</div>
<div>ОГРН 1217300010476</div>
<div>ИНН 7325174845</div>
</div>
<hr>
<div>АНО ДПО «<a href="/" class="text-decoration-none link-light">Учебный центр «Хекслет</a>»</div>
<div>119331 г. Москва, вн. тер. г. муниципальный округ</div>
<div>Ломоносовский, пр-кт Вернадского, д. 29</div>
<div>ОГРН 1247700712390</div>
<div>ИНН 7736364948</div>
</div>
</div>
</footer>
<div id="root-assistant-offcanvas"></div>
<script src="/vite/assets/assistant-Bukl1lYy.js" crossorigin="anonymous" type="module"></script><link rel="modulepreload" href="/vite/assets/chunk-DsPFFUou.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/init-BrRXra1y.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/ErrorFallbackBlock-naDSYSy9.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/MarkdownBlock-DbyKWoR_.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/gon-D3e4yh1x.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/mantine-CGMYrt2Y.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/shiki-V011pkdv.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/utils-DRqSHbQE.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/routes-CCH8ilKF.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/lib-XR8Qr8kR.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/dist-GCHh59xr.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/Box-B5-OOzBf.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/notifications.store-C-3AFSMn.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/useIsomorphicEffect-HJ6VK0D3.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/lib-KSp6QbZ0.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/axios-BEvgo0ym.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/classnames-l6ipYlLR.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/dayjs.min-BkKovM-s.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/debounce-jMQ_Cf4f.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/i18next-BlSq9s7B.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/client-U9M77rxp.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/react-dom-DaLxUz_h.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/useTranslation-Bx1Cdrkz.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/compiler-runtime-6XxiPFnt.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/jsx-runtime-CwjcCKJi.js" as="script" crossorigin="anonymous">
<link rel="modulepreload" href="/vite/assets/react-CkL4ZRHB.js" as="script" crossorigin="anonymous">
<script defer src="https://static.cloudflareinsights.com/beacon.min.js/v67327c56f0bb4ef8b305cae61679db8f1769101564043" integrity="sha512-rdcWY47ByXd76cbCFzznIcEaCN71jqkWBBqlwhF1SY7KubdLKZiEGeP7AyieKZlGP9hbY/MhGrwXzJC/HulNyg==" data-cf-beacon='{"version":"2024.11.0","token":"d11015b65d11429ea6b4a2ef37dd7e0b","server_timing":{"name":{"cfCacheStatus":true,"cfEdge":true,"cfExtPri":true,"cfL4":true,"cfOrigin":true,"cfSpeedBrain":true},"location_startswith":null}}' crossorigin="anonymous"></script>
</body>
</html>