Testing
Implement robust testing frameworks to ensure the quality of your applications.
Chromatic
chromatic.com
A visual testing and review tool that scans every possible UI state across browsers to identify visual and functional bugs. It allows teams to assign reviewers, resolve discussions, and streamline sign-off processes. Chromatic runs visual and interaction tests in parallel across multiple browsers, providing expansive test coverage with minimal effort. It offers a unified workspace for designers, product managers, and stakeholders to share feedback and access UI components, stories, tests, and design files. The tool integrates seamlessly with existing CI/CD workflows and includes features like a Figma plugin, Slack notifications, and webhooks to enhance collaboration and engagement among team members.
Cypress
cypress.io
An open-source tool for front-end testing for modern web applications. It allows users to create, debug, and run tests in real-time within the browser, making it easy to identify and fix bugs. Cypress integrates seamlessly with continuous integration (CI) systems, providing immediate feedback on test failures. Its powerful API and in-browser developer tools enhance the debugging experience. E2E testing.
HTTPie
httpie.io
HTTPie is an open-source API testing client designed to simplify and enhance the user experience for developers. It offers a user-friendly graphical interface while maintaining the functionality of its Terminal version.
Jest
jestjs.io
A JavaScript testing framework focused on simplicity and performance. It operates with zero configuration, making it easy to integrate into most JavaScript projects. Key features include snapshot testing for large objects, isolated tests running in parallel for efficiency, and a rich API that provides quick results. Jest ensures unique global states for reliable parallel test execution and prioritizes previously failed tests. It also offers code coverage generation and easy mocking capabilities. With comprehensive documentation and extensibility, Jest aims to make testing a delightful experience for developers.
Mocha
mochajs.org
A feature-rich JavaScript test framework that runs on Node.js and in the browser, making asynchronous testing simple and fun. It provides a flexible and extensible interface for writing tests, allowing developers to use various assertion libraries and reporting tools. Mocha supports multiple testing styles, including BDD (Behavior-Driven Development) and TDD (Test-Driven Development), and is widely used in the JavaScript community for its ease of use and powerful features.
Pact Docs
docs.pact.io
Code-first tool designed for testing HTTP and message integrations, ensuring safety during API and microservice development and deployment. It facilitates contract testing, which is crucial for services that need to communicate, such as an API client and a web front-end. Pact helps ensure that a provider's behavior aligns with its documented contract, preventing integration failures by keeping provider code and documentation in sync. This approach is particularly beneficial in environments with multiple services, enhancing reliability and reducing the risk of errors during integration.
Playwright
playwright.dev
A tool for cross-browser end-to-end(E2E) testing of modern web applications. It operates in alignment with modern browser architecture, running tests out-of-process to avoid the limitations of traditional in-process test runners.
Pytest
docs.pytest.org
Testing framework for Python that allows developers to write better tests. It supports Python 3.8+ and PyPy 3, featuring a rich plugin architecture with over 1300 plugins available. The framework is favored by individuals and companies for its reliability and ease of use. It also offers commercial support through Tidelift, ensuring maintainers receive compensation for their work on open-source dependencies.
React Testing Library
testing-library.com
Enhances DOM Testing Library for testing React components. Write maintainable tests that focus on user interactions rather than implementation details. The library encourages accessibility and allows tests to interact with the DOM as users would, improving confidence in application functionality. It provides utilities for querying the DOM, such as finding form elements by label text and buttons by their text. This approach ensures that tests remain robust during component refactors, aligning closely with user behavior.
Vitest
vitest.dev
A next-generation testing framework that is fast and Vite-native, allowing for the reuse of Vite's configuration and plugins across applications and tests. It supports Expect, snapshot testing, coverage, and offers a straightforward migration path from Jest. The framework only reruns related changes, similar to Hot Module Replacement (HMR) for tests, and provides out-of-the-box support for ESM, TypeScript, and JSX through esbuild.