#testing

React Testing Library is a great framework for React component tests because there are a lot of questions it answers for you, so you don’t need to worry about those questions. But that doesn’t mean testing is easy. There are still a lot of questions you have to figure out for yourself: How many component tests should you write vs end-to-end tests or lower-level unit tests? How can you test a certain line of code that is tricky to test? And what in the world are you supposed to do about that persistent act() warning?
In this three-hour workshop we’ll introduce React Testing Library along with a mental model for how to think about designing your component tests. This mental model will help you see how to test each bit of logic, whether or not to mock dependencies, and will help improve the design of your components. You’ll walk away with the tools, techniques, and principles you need to implement low-cost, high-value component tests.
Table of contents- The different kinds of React application tests, and where component tests fit in- A mental model for thinking about the inputs and outputs of the components you test- Options for selecting DOM elements to verify and interact with them- The value of mocks and why they shouldn’t be avoided- The challenges with asynchrony in RTL tests and how to handle them
Prerequisites- Familiarity with building applications with React- Basic experience writing automated tests with Jest or another unit testing framework- You do not need any experience with React Testing Library- Machine setup: Node LTS, Yarn

Test and trust your React app by combining Playwright’s powerful browser automation with modern synthetic monitoring. In this hands-on workshop, you’ll learn how to write real user flow tests with Playwright, run them locally, and then scale them into production-ready monitoring with Checkly.We’ll start with a quick tour of synthetic vs. real user monitoring, then dive into testing key interactions in your app, from page loads to forms and navigation. You’ll learn how to use Playwright’s core features to create reliable end-to-end tests.Next, we’ll show you how to turn those local tests into live monitors. You’ll deploy your tests as synthetic monitors, view test runs, and debug failures with rich observability data, like screenshots and traces.Table of contents:Intro: Synthetic vs RUM, Testing vs MonitoringSetup to run app locallyWrite Playwright tests on the appPlaywright core features Run testsConvert Playwright tests into synthetic monitorsConcepts of Monitoring as CodeObservability: debug with Traces, Logs & ScreenshotsClosing the loop with alerts and notification channels considerationsWorkshop level: developers comfortable with React and CLI tools.

Get ready to take your front-end development skills to the next level with our hands-on workshop. In this four-hour session, you will learn the ins and outs of test-driven development using Playwright, a powerful tool that will revolutionize your web development workflow.Are you tired of spending endless hours debugging issues in your web applications? Dive deep into writing tests before writing code, ensuring top-notch quality and functionality in your web applications. Say goodbye to manual testing and hello to automated tests that catch bugs early in the development process.Join us for an interactive and fun workshop where you'll gain the confidence to elevate your front-end development game and build web applications like a pro. Don't let common pain points like inconsistent UI behavior or regression issues slow you down - learn how to effectively use Playwright to avoid these pitfalls and streamline your development process.Don't miss this opportunity to unlock the full potential of test-driven development with Playwright – sign up now and get ready to uplevel your skills!

This 3 hour workshop will provide an introduction to the Cloudflare Developer Platform for application developers. It will focus on developing a full-stack React application backed by tests that can guarantee the correctness of its interactions with the resources and APIs provided by the Developer Platform.The workshop assumes basic knowledge of TypeScript and React — not much beyond what’s needed to build a hello world app in React using TypeScript! Knowledge of the Developer Platform is also not required as everything Cloudflare related will be introduced as part of the workshop.So if you’re interested in application development on the (fast and inexpensive!) Cloudflare platform then this workshop is for you. By the end of it you will know how to build a fully-fledged, fully-tested, full-stack web application (using React or any framework of your choice) with a comprehensive testing structure that gives you full confidence and peace of mind.
AgendaThe workshop will include live coding, Q&A, and interactive coding sections. The starting code, alongside instructions will be also made available for participants to revisit and dig deeper afterthe workshop.As part of the initial setup we’ll see how to use the C3 tool to easily deploy applications to Cloudflare in a matter of minutes.Afterwards, we will see how to write code that interacts with the Developer Platform specific resources and APIs, specifically, we’ll use KVs, R2 buckets and Workers AI. We’ll also make sure to test all the code to make sure that it correctly interacts with the aforementioned APIs via the official Workers Vitest integration.We will then integrate the Workers code with our React app to build a complete full-stack application ready to be deployed to the Cloudflare edge network. We will use playwright to implement an end-to-end (e2e) suite of tests to make sure that the application integrates perfectly with the Cloudflare platform.
Takeaways- How to develop on the Cloudflare Workers runtime and interact with various Cloudflare resources- How to develop, comprehensively test and deploy a full-stack application on the Cloudflare Platform

Node.js test runner is modern, fast, and doesn't require additional libraries, but understanding and using it well can be tricky.You will learn how to use Node.js test runner to its full potential.We'll show you how it compares to other tools, how to set it up, and how to run your tests effectively. During the workshop, we'll do exercises to help you get comfortable with filtering, using native assertions, running tests in parallel, using CLI, and more. We'll also talk about working with TypeScript, making custom reports, and code coverage.

We're all taught to follow the Testing Pyramid but the reality is that we build out the Testing Christmas Tree. In this workshop, David will talk you through how to break down projects and put the tests where they need to be. By the end of the workshop you will be able to update your projects so that anyone and everyone can start contributing and truly living up to "Quality is everyone job".
He will walk you through:- Component Testing- API Testing- Visual Regression Testing- A11Y testing
He will also talk you through how to get these all setup in your CI/CD pipeline so that you can get shorter and faster feedback loops.

In the ever-evolving landscape of software development, ensuring the reliability and functionality of APIs has become paramount. "API Testing with Postman" is a comprehensive workshop designed to equip participants with the knowledge and skills needed to excel in API testing using Postman, a powerful tool widely adopted by professionals in the field. This workshop delves into the fundamentals of API testing, progresses to advanced testing techniques, and explores automation, performance testing, and multi-protocol support, providing attendees with a holistic understanding of API testing with Postman.
1. Welcome to Postman- Explaining the Postman User Interface (UI)2. Workspace and Collections Collaboration- Understanding Workspaces and their role in collaboration- Exploring the concept of Collections for organizing and executing API requests3. Introduction to API Testing- Covering the basics of API testing and its significance4. Variable Management- Managing environment, global, and collection variables- Utilizing scripting snippets for dynamic data5. Building Testing Workflows- Creating effective testing workflows for comprehensive testing- Utilizing the Collection Runner for test execution- Introduction to Postbot for automated testing6. Advanced Testing- Contract Testing for ensuring API contracts- Using Mock Servers for effective testing- Maximizing productivity with Collection/Workspace templates- Integration Testing and Regression Testing strategies7. Automation with Postman- Leveraging the Postman CLI for automation- Scheduled Runs for regular testing- Integrating Postman into CI/CD pipelines8. Performance Testing- Demonstrating performance testing capabilities (showing the desktop client)- Synchronizing tests with VS Code for streamlined development9. Exploring Advanced Features - Working with Multiple Protocols: GraphQL, gRPC, and more
Join us for this workshop to unlock the full potential of Postman for API testing, streamline your testing processes, and enhance the quality and reliability of your software. Whether you're a beginner or an experienced tester, this workshop will equip you with the skills needed to excel in API testing with Postman.

You probably know the story. You’ve created a couple of tests, and since you are using Cypress, you’ve done this pretty quickly. Seems like nothing is stopping you, but then – failed test. It wasn’t the app, wasn’t an error, the test was… flaky? Well yes. Test design is important no matter what tool you will use, Cypress included. The good news is that Cypress has a couple of tools behind its belt that can help you out. Join me on my workshop, where I’ll guide you away from the valley of anti-patterns into the fields of evergreen, stable tests. We’ll talk about common mistakes when writing your test as well as debug and unveil underlying problems. All with the goal of avoiding flakiness, and designing stable test.

If finding errors in your frontend project is like searching for a needle in a code haystack, then Sentry error monitoring can be your metal detector. Learn the basics of error monitoring with Sentry. Whether you are running a React, Angular, Vue, or just “vanilla” JavaScript, see how Sentry can help you find the who, what, when and where behind errors in your frontend project. 
Workshop level: Intermediate

So you’ve gotten Detox set up to test your React Native application. Good work! But you aren’t done yet: there are still a lot of questions you need to answer. How many tests do you write? When and where do you run them? How do you ensure there is test data available? What do you do about parts of your app that use mobile APIs that are difficult to automate? You could sink a lot of effort into these things—is the payoff worth it?
In this three-hour workshop we’ll address these questions by discussing how to integrate Detox into your development workflow. You’ll walk away with the skills and information you need to make Detox testing a natural and productive part of day-to-day development.
Table of contents:
- Deciding what to test with Detox vs React Native Testing Library vs manual testing- Setting up a fake API layer for testing- Getting Detox running on CI on GitHub Actions for free- Deciding how much of your app to test with Detox: a sliding scale- Fitting Detox into you local development workflow
Prerequisites
- Familiarity with building applications with React Native- Basic experience with Detox- Machine setup: a working React Native CLI development environment including either Xcode or Android Studio

The web has evolved. Finally, testing has also. Cypress is a modern testing tool that answers the testing needs of modern web applications. It has been gaining a lot of traction in the last couple of years, gaining worldwide popularity. If you have been waiting to learn Cypress, wait no more! Filip Hric will guide you through the first steps on how to start using Cypress and set up a project on your own. The good news is, learning Cypress is incredibly easy. You'll write your first test in no time, and then you'll discover how to write a full end-to-end test for a modern web application. You'll learn the core concepts like retry-ability. Discover how to work and interact with your application and learn how to combine API and UI tests. Throughout this whole workshop, we will write code and do practical exercises. You will leave with a hands-on experience that you can translate to your own project.

In this workshop, I cover not only what WebdriverIO can do, but also how you'll be using it day-to-day. I've built the exercises around real-world scenarios that demonstrate how you would actually set things up. It's not just "what to do," but specifically "how to get there." We'll cover the fundamentals of Automated UI testing so you can write maintainable, useful tests for your website and/or web app.

Are you satisfied with your test suites? If you said no, you’re not alone—most developers aren’t. And testing in React Native is harder than on most platforms. How can you write JavaScript tests when the JS and native code are so intertwined? And what in the world are you supposed to do about that persistent act() warning? Faced with these challenges, some teams are never able to make any progress testing their React Native app, and others end up with tests that don’t seem to help and only take extra time to maintain.
But it doesn’t have to be this way. React Native Testing Library (RNTL) is a great library for component testing, and with the right mental model you can use it to implement tests that are low-cost and high-value. In this three-hour workshop you’ll learn the tools, techniques, and principles you need to implement tests that will help you ship your React Native app with confidence. You’ll walk away with a clear vision for the goal of your component tests and with techniques that will help you address any obstacle that gets in the way of that goal.you will know:- The different kinds React Native tests, and where component tests fit in- A mental model for thinking about the inputs and outputs of the components you test- Options for selecting text, image, and native code elements to verify and interact with them- The value of mocks and why they shouldn’t be avoided- The challenges with asynchrony in RNTL tests and how to handle them- Options for handling native functions and components in your JavaScript tests
Prerequisites:- Familiarity with building applications with React Native- Basic experience writing automated tests with Jest or another unit testing framework- You do not need any experience with React Native Testing Library- Machine setup: Node 16.x or 18.x, Yarn, be able to successfully create and run a new Expo app following the instructions on https://docs.expo.dev/get-started/create-a-new-app/

Compared to unit testing, end-to-end testing aims to interact with your application just like a real user. And as we all know it can be pretty challenging. Especially when we talk about Mobile applications.
Tests rely on many conditions and are considered to be slow and flaky. On the other hand - end-to-end tests can give the greatest confidence that your app is working. And if done right - can become an amazing tool for boosting developer velocity.
Detox is a gray-box end-to-end testing framework for mobile apps. Developed by Wix to solve the problem of slowness and flakiness and used by React Native itself as its E2E testing tool.
Join me on this workshop to learn how to make your mobile end-to-end tests with Detox rock.
Prerequisites- iOS/Android: MacOS Catalina or newer- Android only: Linux- Install before the workshop

A real-world demo and a playground for Azure Static Web Apps service.

This workshop is for Cypress users who want to step up their game against flake in their test suites. Leveraging the Cypress Real World App, we’ll cover the most common causes of flake, code through some examples of how to make tests more flake resistant, and review best practices for detecting and mitigating flake to increase confidence and reliability.

Table of contents:
- Cypress Real World App Overview
- What is Flake?
- Causes of Flake
- Managing Network-related Flake (Activity)
- Managing Dom-relate Flake (Activity)
- Flake Detection and Mitigation Best Practices
- Q&A

The Application Security Training is a 3 Hour training. This Training is intended for those who are interested in making a career in the Information Security domain. This training involves real world scenarios that every Security Professional must be well versed with. It involves decompiling, real-time analyzing and testing of the applications from a security standpoint.

This training covers understanding the internals of web and mobile web applications, Real-time testing of web applications and android applications and a strategic approach to analyze applications for OWASP Top 10 vulnerabilities (Web) security issues such as Injections, Cross Site Scripting (XSS), CSRF Attacks, Insecure API’s, Insecure logging, Insecure communication, Insufficient cryptography, Insecure authentication and Poor code quality and many more.

Do your automated tests include a11y checks? This workshop will cover how to get started with jest-axe to detect code-based accessibility violations, and Lighthouse CI to validate the accessibility of fully rendered pages. No amount of automated tests can replace manual accessibility testing, but these checks will make sure that your manual testers aren't doing more work than they need to.

This workshop will lead you through installing and exploiting a number of intentionally vulnerable applications. The applications will use real-world packages with know vulnerabilities, including:

- Directory traversal
- Regular expression denial of service (ReDoS)
- Cross site scripting (XSS)
- Remote code execution (RCE)
- Arbitrary file overwrite (Zip Slip)
- These exploits exist in a number of applications, most of which you will need to install either locally or on a cloud instance.

You can do this workshop in 2 different flavours:

- Using the prepared Docker images OR
- Install everything on your local machine.