react-testing-library

Website

testing-library.com

$ Details

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Categories

#Developer Tools #JavaScript Framework #Testing #Automated Testing

stylelint

Website

stylelint.io

$ Details

Categories

#Developer Tools #Code Coverage #Design Tools #Code Analysis

react-testing-library features and specs

• Focused on user-centric testing
  React Testing Library encourages tests that closely resemble how users interact with an application. This approach makes tests more reliable and meaningful.
• Reduces coupling to implementation details
  By encouraging developers to interact with components via the DOM, the library minimizes dependencies on component internals, making tests less prone to breaking from refactors.
• Improved test readability
  Tests written with React Testing Library are generally easier to read and understand because they focus on what the user sees and does, rather than the internal logic of the components.
• Comprehensive query options
  The library provides a wide range of query methods (e.g., getByText, getByRole), which makes it easy to select elements in ways that resemble how users think.
• Active community and well-maintained
  React Testing Library has a strong, active community and it's maintained by experienced developers who keep the library up-to-date with React's evolution.

Possible disadvantages of react-testing-library

• Limited support for non-DOM testing
  The library is heavily focused on DOM interactions, making it less suited for testing non-DOM logic or scenarios that don't involve user interactions.
• Can be slower
  Tests that involve the DOM can be slower compared to tests that interact directly with component methods and state, which can lead to longer test execution times.
• Learning curve for traditional testers
  Developers who are used to testing implementation details with other tools (like Enzyme) might find it challenging to adjust to the user-centric approach advocated by React Testing Library.
• Potential for less granular control
  Because the library encourages testing through the UI, developers might find it harder to test specific, isolated internal behaviors of components that aren't directly visible to users.
• Dependencies on browser APIs
  The library's reliance on browser APIs means that tests may behave differently in different environments or may require polyfills for certain features, leading to potential inconsistencies.

stylelint features and specs

• Highly Configurable
  Stylelint offers extensive configuration options, allowing developers to customize rules to fit the specific coding style and standards of their projects.
• Extensive Rule Set
  With a broad collection of rules, developers can enforce best practices, catch potential errors, and maintain consistent code style across the project.
• Plugin Support
  Stylelint supports plugins, enabling developers to extend its functionality and integrate with other tools seamlessly.
• Active Community and Maintenance
  Stylelint is supported by an active community that contributes to its development, ensuring it stays up-to-date with the latest CSS standards and practices.
• Integration with Other Tools
  Stylelint can be integrated with various development tools and text editors, making it easier for developers to incorporate it into their existing workflow.

Possible disadvantages of stylelint

• Complex Configuration
  The high level of configurability can lead to complexity, requiring a steep learning curve for new users to understand and set up rules.
• Performance Concerns with Large Codebases
  Stylelint can potentially slow down in very large projects, as it processes and analyzes a significant amount of code data.
• Limited Support for Non-CSS Syntax
  While Stylelint can be configured to support various CSS-like syntaxes, it might not provide as robust support for non-standard or newer syntaxes as native handling.
• Requires Manual Updating
  To benefit from new rules or performance improvements, users may need to manually update Stylelint and its configurations frequently.
• Overhead for Small Projects
  For small projects, setting up and maintaining Stylelint might add unnecessary overhead due to its extensive features and options.

React unit testing with Jest & React-testing-library

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Stylelint ( By Andrey Sitnik at CSSParis #6 )

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