December 7 - 11, 2023

Berlin, Germany & Online

TestJS Summit 2023

Name: TestJS Summit 2023
Start: 2023-12-07T08:00:00.000Z
End: 2023-12-11T20:00:00.000Z

Test JavaScript. Test with JavaScript.

Learn more

TestJS Summit is getting back in 2023 in hybrid format with the first in-person day streamed from the Berlin venue including hybrid networking features and interactive entertainment; and second day, as well as the numerous free workshops, streamed to the global audience online. TestJS Summit is event for QAs and software developers to get up to date with JS testing best practices, sharpen skills and get latest updates from top products core teams. Get a full ticket to participate in workshops, and network with others JS testing folks on December 7-11, 2023.

Esta edición del evento ha finalizado, las últimas actualizaciones de este JavaScript Conference están disponibles en el sitio web de la marca.

Sponsorship opportunitites

Versión en EspañolES

Todos pueden escribir pruebas fácilmente

21 min

Todos pueden escribir pruebas fácilmente

Debbie O'Brien

Senior Program Manager @ Microsoft, working with Playwright.

Playwright is a reliable end-to-end testing tool for modern web apps that provides one API, full isolation, fast execution, and supports multiple languages. It offers features like auto-weighting, retrying assertions, seamless testing of iframes and shadow DOM, test isolation, parallelism, and scalability. Playwright provides tools like VS Code extension, UiMode, and Trace Viewer for writing, debugging, and running tests. Effective tests prioritize user-facing attributes, use playwright locators and assertions, and avoid testing third-party dependencies. Playwright simplifies testing by generating tests, providing code generation and UI mode, and allows for easy running and debugging of tests. It helps in fixing failed tests and analyzing DOM changes, fixing locator mismatches, and scaling tests. Playwright is open source, free, and continuously growing.

testing e2e testing

Cobertura de código con IA

8 min

Cobertura de código con IA

Premium

Jaap Brasser

Codium

Codium is a generative AI assistant for software development that offers code explanation, test generation, and collaboration features. It can generate tests for a GraphQL API in VS Code, improve code coverage, and even document tests. Codium allows analyzing specific code lines, generating tests based on existing ones, and answering code-related questions. It can also provide suggestions for code improvement, help with code refactoring, and assist with writing commit messages.

artificial intelligence

El Arte de las 'Vistas Humildes': Probando Aplicaciones React Native de Manera Inteligente

32 min

El Arte de las 'Vistas Humildes': Probando Aplicaciones React Native de Manera Inteligente

Mo Khazali

Theodo UK

This Talk discusses the challenges of testing in React and React Native applications, particularly with regards to barcode scanning. It explores the violation of separation of concerns in React and proposes the use of the HumbleObject model to simplify testing and improve code cleanliness. The MVP model is also introduced as a way to separate UI state and logic from the component. The importance of following patterns, standardization, and teaching principles is emphasized, along with the benefits of using custom hooks to share business logic. The potential of AI tools in code refactoring is mentioned as well.

unit testing react best practices

Luchando contra la inestabilidad de las pruebas con máquinas del tiempo

29 min

Luchando contra la inestabilidad de las pruebas con máquinas del tiempo

Filip Hric

Replay.io

The Talk discusses the importance of learning from the past in software testing and troubleshooting test flakiness. It highlights the challenges of using memory and communication to gather information. The introduction of Replay.io, a time-traveling debugger, is proposed as a solution. The benefits of using Replay Chromium for recording and debugging, as well as the features of the Replay debugger, are emphasized. The Talk also addresses the relationship between test flakiness and app flakiness, and the significance of simulating real-world scenarios in testing.

cypress

Masterclass de Pruebas de API con Postman

48 min

Masterclass de Pruebas de API con Postman

Top Content

WorkshopFree

Pooja Mistry

En el panorama siempre en evolución del desarrollo de software, garantizar la fiabilidad y funcionalidad de las API se ha vuelto primordial. "Pruebas de API con Postman" es una masterclass completa diseñada para equipar a los participantes con los conocimientos y habilidades necesarios para sobresalir en las pruebas de API utilizando Postman, una herramienta poderosa ampliamente adoptada por profesionales en el campo. Esta masterclass profundiza en los fundamentos de las pruebas de API, avanza a técnicas de prueba avanzadas y explora la automatización, las pruebas de rendimiento y el soporte multiprotocolo, proporcionando a los asistentes una comprensión holística de las pruebas de API con Postman.
Únete a nosotros para esta masterclass para desbloquear todo el potencial de Postman para las pruebas de API, agilizar tus procesos de prueba y mejorar la calidad y fiabilidad de tu software. Ya seas un principiante o un probador experimentado, esta masterclass te equipará con las habilidades necesarias para sobresalir en las pruebas de API con Postman.

testing security testing

Mejores Prácticas para Escribir y Depurar Pruebas de Cypress

148 min

Mejores Prácticas para Escribir y Depurar Pruebas de Cypress

Workshop

Filip Hric

Probablemente conozcas la historia. Has creado un par de pruebas y, como estás utilizando Cypress, lo has hecho bastante rápido. Parece que nada te detiene, pero luego - prueba fallida. No fue la aplicación, no fue un error, la prueba fue... ¿inestable? Bueno sí. El diseño de la prueba es importante sin importar la herramienta que utilices, incluyendo Cypress. La buena noticia es que Cypress tiene un par de herramientas bajo su cinturón que pueden ayudarte. Únete a mí en mi masterclass, donde te guiaré lejos del valle de los anti-patrones hacia los campos de pruebas estables y siempre verdes. Hablaremos sobre los errores comunes al escribir tu prueba, así como depurar y revelar problemas subyacentes. Todo con el objetivo de evitar la inestabilidad y diseñar pruebas estables.

testing cypress

Pruebas de Componentes con Vitest

29 min

Pruebas de Componentes con Vitest

Maya Shavin

Published author, international speaker and an open-source library maintainer of frontend and web projects

This Talk explores the challenges of choosing and learning testing frameworks, emphasizing the importance of planning, automation, and prioritizing unit testing. The VTEST framework is introduced as a fast and stable option for unit testing JavaScript and TypeScript code, with a focus on logic and mocking external dependencies. The Talk also covers testing React hooks, integration testing with TestingLibraryReact, component testing, and achieving code coverage. Best practices include performing accessibility tests, planning tests before coding, and using data test IDs for stability.

unit testing

Construyendo una suite de pruebas significativa que no sea todo E2E

89 min

Construyendo una suite de pruebas significativa que no sea todo E2E

Workshop

David Burns

Todos somos enseñados a seguir la Pirámide de Pruebas pero la realidad es que construimos el Árbol de Pruebas de Navidad. En esta masterclass, David te explicará cómo desglosar proyectos y poner las pruebas donde necesitan estar. Al final de la masterclass, podrás actualizar tus proyectos para que cualquiera y todos puedan empezar a contribuir y realmente vivir según "La calidad es el trabajo de todos".
Te guiará a través de:- Pruebas de Componentes- Pruebas de API- Pruebas de Regresión Visual- Pruebas A11Y
También te explicará cómo configurar todo esto en tu pipeline de CI/CD para que puedas obtener ciclos de feedback más cortos y rápidos.

testing security testing e2e testing

IA en Pruebas de API: Cómo Probar Más Rápido Con ChatGPT

26 min

IA en Pruebas de API: Cómo Probar Más Rápido Con ChatGPT

Olga Trofimova

Splicky

This Talk discusses the use of AI in API testing and provides a step-by-step strategy for incorporating artificial intelligence with chat.dpt. It emphasizes the importance of analyzing documentation and creating test cases using tools like Swagger and Cypress. The Talk also addresses the role of human involvement in testing, the balance between manual work and AI assistance, and the need for validation of AI-generated tests. Overall, AI can significantly speed up the testing process, but human analysis and vigilance are still necessary for accurate results.

testing artificial intelligence

Dominando Node.js Test Runner

78 min

Dominando Node.js Test Runner

Workshop

Marco Ippolito

Node.js test runner es moderno, rápido y no requiere bibliotecas adicionales, pero entenderlo y usarlo bien puede ser complicado. Aprenderás a utilizar Node.js test runner a su máximo potencial. Te mostraremos cómo se compara con otras herramientas, cómo configurarlo y cómo ejecutar tus pruebas de manera efectiva. Durante la masterclass, haremos ejercicios para ayudarte a sentirte cómodo con el filtrado, el uso de afirmaciones nativas, la ejecución de pruebas en paralelo, el uso de CLI y más. También hablaremos sobre trabajar con TypeScript, hacer informes personalizados y la cobertura de código.

testing typescript node.js

Fixtures en Playwright - Pequeña Guía

6 min

Fixtures en Playwright - Pequeña Guía

Lia Moreira

Mentorship available

Software Engineer - BLIP<div><br></div>

Fixtures in Playwright are like small environments where you define methods and control the testing process. By creating reusable fixtures, you can make tests more readable and reusable. The fixture structure consists of a before block, the test, and an after block. Using fixtures allows you to access methods created in a page object, improving code readability and reusability.

automation

Pruebas de Componentes con Cypress vs Biblioteca de Pruebas de React

25 min

Pruebas de Componentes con Cypress vs Biblioteca de Pruebas de React

Murat K Ozcan

Staff Engineer & Test Architect at Extend

The Talk discusses the differences between Cypress component testing and React Testing Library (RTL). It highlights the benefits of using Cypress Component Testing, such as easier handling of complex components and a more stable testing experience in CI. The comparison between SignOn and Jest focuses on low-level spying and mocking capabilities. The comparison between Cypress Intercept and Mock Service Worker (MSW) examines their network spy and mocking capabilities. The Talk also emphasizes the superior developer experience and observability provided by Cypress component testing compared to RTL.

testing cypress cypress react cypress react native react testing

Enfoque Integral de Rendimiento Web con Grafana y K6

21 min

Enfoque Integral de Rendimiento Web con Grafana y K6

Marie Cruz

Grafana Labs

Today's Talk focused on achieving a holistic web performance approach using Grafana and K6. The importance of complementing lab data with field data for realistic user experience testing was highlighted. The use of GrafanaFaro for collecting performance metrics and integrating with other Grafana OSS products was discussed. Detailed instructions on setting up GrafanaFaro with the QuickPizza sample application were provided. The benefits of using K6 for reproducing errors, improving testing, and demonstrating browser testing capabilities were explained.

Medir y Mejorar el Rendimiento del Frontend Utilizando la Automatización de Pruebas

22 min

Medir y Mejorar el Rendimiento del Frontend Utilizando la Automatización de Pruebas

Ramona Schwering

Developer Advocate @ Auth0, GDE in Web Technologies and a Women Techmaker and Cypress Ambassador.

The Talk focuses on the importance of testing and gathering information for building good applications. It highlights the use of test automation for performance monitoring and logging for performance measurement. The Talk also discusses the impact of performance on user engagement and search engine rankings. It emphasizes the use of Cypress plugins for monitoring performance metrics and setting thresholds for tests. Overall, the Talk emphasizes the value of test automation tools in providing valuable information at a low cost.

performance testing automation

Frameworks de Pruebas, Frameworks Móviles y los Navegadores Aman a los Desarrolladores y Testers

27 min

Frameworks de Pruebas, Frameworks Móviles y los Navegadores Aman a los Desarrolladores y Testers

David Burns

BrowserStack

Today's Talk covered various topics including testing frameworks, browsers, and the challenges faced in testing complex systems. The importance of improving testing setup and productivity was highlighted, along with the principle of least surprise and the need for framework upgrades. The Talk also discussed the different browser engines and their unique features, as well as the benefits of sharing ideas and approaches within the software development community. The session concluded with insights on browser testing and the use of tools like Playwright and WebKit.

deep dive

Lo que aprendí sobre la calidad del software de los 10 proyectos de Javascript más populares en Github

27 min

Lo que aprendí sobre la calidad del software de los 10 proyectos de Javascript más populares en Github

Júlio de Lima

CAPCO

The Talk discusses the code review process and the importance of software quality. It emphasizes the need for maintainability in code and the use of guidelines tailored to the team. The Talk also highlights the significance of functional suitability and the challenges of code review. Automation and documentation are recommended to improve code reviews and ensure software quality.

testing case study code quality

Mock Service Worker 2.0

27 min

Mock Service Worker 2.0

Artem Zakharchenko

Freelancer

MSW is an API mocking library that simplifies the process of intercepting requests and mocking responses. It leverages standard JavaScript APIs like the ServiceWorker API and the Fetch API. MSW has seen significant adoption, with over 90,000 projects on GitHub and 2.5 million weekly downloads on npm. The recent release of Node.js 18 has allowed for refactoring and simplification in MSW. MSW supports TypeScript and can be used for contract testing with tools like PACT I-O.

api security unit testing msw react

De Bueno a Excelente: Mejora las Pruebas con Cypress Contract Tests

19 min

De Bueno a Excelente: Mejora las Pruebas con Cypress Contract Tests

Petros Plakogiannis

Trasys Greece

This Talk discusses the challenges of testing multiple services in a microservices architecture and introduces the use of Cypress and Pact to address these challenges. It explains how to use Cypress to write a contract and generate and share it with the provider. The verification process and CI workflow for the consumer and provider are also discussed. The Talk emphasizes the importance of contract testing to ensure seamless communication between microservices.

testing cypress

Testing Library: Todo el mundo lo usa, pero nadie lo entiende

22 min

Testing Library: Todo el mundo lo usa, pero nadie lo entiende

Matan Borenkraout

Microsoft

This Talk is about a developer's first open source contribution to the Testing Library, exploring how it works and its importance in testing. It discusses the challenges of testing in a Node environment and the use of getByRole query to find elements. The Talk also highlights the complexities of implicit roles and the need for specific attributes to filter elements. It emphasizes the importance of verifying visibility and accessibility when querying elements and the process of test clean up.

testing unit testing

Explorando Node.js Test Runner

28 min

Explorando Node.js Test Runner

Marco Ippolito

Member of Node.js Technical Steering Committee

Today's Talk introduces the new Node.js test runner and its features, including filtering, sub-testing, and reporting. It also discusses executing and writing tests in Node.js, as well as the features of the Node.js testing library. The advantages of the Node.js test runner include the ability to create custom test reporters and use TypeScript. However, there are limitations such as a small ecosystem and limited libraries. Upcoming features include test planning, faster test running, and continuous evolution. The Q&A session covers topics like test runner speed, reporters, sharding, and parallelization.

node.js

Revolucionando las pruebas de JS con IA: Desenmascarando el futuro de la garantía de calidad

20 min

Revolucionando las pruebas de JS con IA: Desenmascarando el futuro de la garantía de calidad

Renaldi Gondosubroto

Mentorship available

SEEK

AI testing with generative AI is revolutionizing JS testing by automating test creation and improving software test processes. Key technologies like natural language processing and neural networks, as well as quality data, play a crucial role in AI testing. The benefits of AI testing include speed, efficiency, adaptability, bug detection, and limitless potential. Generating JavaScript tests can be tailored to different tools like Selenium, and there are popular tools available for automating test automation. AI tools like Datadog, RecheckWeb, and Applitools Eyes offer powerful capabilities for anomaly detection, visual regression testing, and code list testing. The horizon for AI in testing continues to expand with evolving capabilities, and understanding AI's role in testing revolution and machine learning is crucial for practical application and continuous learning.

testing artificial intelligence

Zen y el Arte de Pruebas de Componentes de UI

21 min

Zen y el Arte de Pruebas de Componentes de UI

Tally Barak

Playwright Ambassador

The Talk discusses the evolution of test automation from the original test automation pyramid to the testing pyramid. It explores modern approaches to UI component testing, including isolations and testing with a fake DOM. The importance of testing in a real browser and the emergence of tools like Selenium, WebDriver.io, Puppeteer, Cypress, and PlayWrite for browser automation are highlighted. The advantages of out-of-process browser automation are explained, along with the use of Storybook and Playwright for testing components. The distinction between end-to-end testing and component testing is also mentioned.

unit testing user interfaces storybook

¡No Más Pruebas Inestables!

29 min

¡No Más Pruebas Inestables!

Walmyr

Talking About Testing online school

The Talk discusses the harmful effects of flaky tests and the importance of writing deterministic tests. It provides strategies for identifying and addressing flaky tests, including using test retries and burning tasks on CI. The Talk also emphasizes the need to avoid arbitrary wait times and handle dependencies when writing end-to-end tests. It highlights the importance of running tests in CI and leveraging tools like Cypress Cloud for test replay and debugging. Additionally, it suggests mocking externals to improve determinism and prioritizing the work to address flaky tests promptly.

testing

Pruebas Visuales: Optimiza Storybook y Gana

9 min

Pruebas Visuales: Optimiza Storybook y Gana

Reuben Ellis

Chromatic

UI testing is hard, but Storybook and Chromatic simplify the process by allowing you to build and test your UI in isolation. Chromatic compares UI changes, detects even minor visual differences, and eliminates the need for manual testing. Loading images and simulating user workflows in Storybook ensure consistent testing. Interaction tests cover user workflows and can be used for complex components, resolving issues and creating test cases.

testing storybook

Monitoreo Sintético y Pruebas e2e: Dos Caras de la Misma Moneda

19 min

Monitoreo Sintético y Pruebas e2e: Dos Caras de la Misma Moneda

Carly Richmond

Developer Advocate at Elastic

Carly Richmond discusses the importance of shifting left in testing and monitoring. She emphasizes the need for empathy and a common toolset in the software development process. The talk explores the use of end-to-end testing and synthetic monitoring, showcasing an example with Playwrights, GitHub Actions, and Elastic Synthetics. It also covers the configuration, setup, and integration of tests in the CI workflow. The talk concludes with the benefits of monitoring application and test state, and the importance of collaboration in issue recreation.

e2e testing github actions

El Ascenso de los Robots

27 min

El Ascenso de los Robots

Theodore Vorillas

Proxima Analytics

This Talk discusses the possibility of robots taking over based on Asimov's three laws of robotics. It explores the use of automation robots for testing, including building and controlling them. The Talk also covers implementing interfaces, conducting math game challenges, and the capabilities of automation testing. It addresses questions about responsive design, camera attachment, and the future roadmap. The affordability of the setup and the potential for future automation are also discussed, along with a rapid fire Q&A session.

testing javascript automation

El Futuro es Hoy: Aprovechando la IA en las Pruebas de Software

25 min

El Futuro es Hoy: Aprovechando la IA en las Pruebas de Software

Mesut Durukal

Indeed

This Talk discusses integrating machine learning into software testing, exploring its use in different stages of the testing lifecycle. It highlights the importance of training data and hidden patterns in machine learning. The Talk also covers generating relevant code for test automation using machine learning, as well as the observation and outlier detection capabilities of machine learning algorithms. It emphasizes the use of machine learning in maintenance, bug management, and classifying bugs based on severity levels. The Talk concludes with the results of classification and bug management, including the use of clustering.

testing machine learning artificial intelligence

Cómo probamos Storybook en sí

30 min

Cómo probamos Storybook en sí

Norbert de Langen

Chromatic

This Talk discusses the use of TypeScript and Storybook in software development. It covers the premise of components and the complexity of testing Storybook. The setup process for Next.js and Storybook is explained, along with the testing workflow and CI integration. The Talk also touches on caching, bug reports, and the release process. Documentation management and improving test run time are discussed, as well as testing feature flags and mobile usage.

performance testing storybook

Explorando Módulos Node para Automatización de Pruebas

19 min

Explorando Módulos Node para Automatización de Pruebas

Kat Kmiotek

Zoopla

This Talk explores the process of building a test automation library using node modules, with a focus on creating the project structure, building and testing the library, and publishing and versioning the package. It discusses the inclusion of helpful features like WAIT helpers and the use of libraries like Playwright and Cypress. The importance of clear documentation, pre-release versions, and version control is emphasized, along with the need for installation instructions and contribution guidelines.

testing node.js automation github actions

Deja de Clasificar Tu Suite de Pruebas

29 min

Deja de Clasificar Tu Suite de Pruebas

Jason Laster

Replay.io

This Talk introduces Replay, a time travel enabled browser dev tool for debugging test suites. It emphasizes the importance of collaboration between product and QA teams to maintain and improve test suites. The Talk demonstrates how Replay's DevTools can be used to debug test failures and analyze test suite health. It also highlights the benefits of using Replay for reproducibility and collaborative debugging. Additionally, it discusses integrating Replay into CI and the cost considerations associated with using the tool.

testing

Desbloqueando la Entrega Rápida - perspectiva de un cambio de DevOps a QAOps

27 min

Desbloqueando la Entrega Rápida - perspectiva de un cambio de DevOps a QAOps

Marcela State

Engineering Manager<br>

QAOPS refers to maintaining software quality with a DevOps mindset, emphasizing collaboration and continuous integration and delivery. QAOps principles include shift left testing, continuous testing, and shared responsibility for software quality. Implementing QAOps involves automating tasks, promoting collaboration, and selecting the right tools. Challenges in adopting QAOps include cultural shift and skill gaps, but the benefits include higher software quality and cost savings. Establishing a quality mindset requires education and leadership support. QA Ops is a framework that requires a combination of DevOps skills, soft skills, and technical expertise.

devops

Pruebas en Dispositivos Móviles para Aplicaciones Multiplataforma

28 min

Pruebas en Dispositivos Móviles para Aplicaciones Multiplataforma

Cecelia Martinez

Ionic

This Talk discusses cross-platform mobile testing, including the challenges it presents and the types of devices and builds that can be used for testing. It explores manual testing, automated testing, and the use of tools like Appium and SOS Labs for running tests on real devices. The Talk also touches on PWA automation, the choice between mobile apps and PWAs, and different testing approaches and performance considerations.

mobile apps

¿IA generativa en tu aplicación? ¿Qué podría salir mal?

29 min

¿IA generativa en tu aplicación? ¿Qué podría salir mal?

Todd Fisher

Verdi AI

Today's Talk discusses the application of GenreBI in apps, using Docker to make ChatGPT work on any machine, challenges with JSON responses, testing AI models, handling AI API and response issues, counting tokens and rate limits, discovering limitations and taking a reactive approach, reliability and challenges of AI APIs, and the use of GPT and AI Copilot in software development.

artificial intelligence

Hemos descansado lo suficiente, ¿qué sigue?

17 min

Hemos descansado lo suficiente, ¿qué sigue?

W. Ian Douglas

Postman

This Talk compares RESTful APIs, event-driven architectures, and low latency performance APIs. It discusses the limitations of RESTful APIs and the need for newer technologies like GraphQL. The Talk explores event-driven architecture using webhooks and web sockets, as well as the benefits of gRPC as a performant alternative. It also highlights the integration of gRPC with front-end development and the use of protocol buffers for improved performance. Lastly, it emphasizes the importance of considering team familiarity and infrastructure when choosing an API architecture.

performance testing

TestJS Summit 2023

Test JavaScript. Test with JavaScript.

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