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Enzyme VS Unused CSS finder

Compare Enzyme VS Unused CSS finder and see what are their differences

Enzyme logo Enzyme

Enzyme is a JavaScript testing utility for React.

Unused CSS finder logo Unused CSS finder

Crawl your website and find unused CSS
  • Enzyme Landing page
    Landing page //
    2023-10-16
  • Unused CSS finder Landing page
    Landing page //
    2021-09-27

Enzyme features and specs

  • Shallow Rendering
    Allows you to render a component without its children, which speeds up tests and isolates the component being tested.
  • Rich API
    Provides a comprehensive set of APIs that enable deep rendering, traversing, and manipulating of components, making it flexible and powerful for various testing needs.
  • Compatibility with Mocha and Jest
    Easily integrates with popular testing frameworks like Mocha and Jest, ensuring a smooth setup process.
  • Simulate Events
    Supports simulation of user events such as clicks, enabling more realistic interaction testing.
  • Selector Support
    Allows for selecting and finding elements using CSS selectors or component constructors, making it easier to target specific elements in tests.
  • Active Community
    Has a large and active community, which can be a valuable resource for support, plugins, and best practices.

Possible disadvantages of Enzyme

  • Complex Setup
    The initial setup and configuration can be complex, especially for beginners, requiring additional libraries and configurations.
  • Limited Support for New React Features
    Often lags behind in supporting new React features, such as Hooks or the latest Context API, compared to other testing frameworks.
  • Deprecation Warnings
    Issues with deprecation warnings and updates can arise, causing frustrations during maintenance and upgrades.
  • Performance Overhead
    Can be slower compared to other testing libraries, especially when using deep rendering for large components.
  • Inconsistent API
    Some users find the API inconsistent or unintuitive, requiring more effort to learn and use effectively.

Unused CSS finder features and specs

  • Efficiency
    Identifies unused CSS, resulting in cleaner and more efficient code. This can lead to improved page load times and reduced bandwidth usage.
  • Ease of Use
    Provides a straightforward interface that allows users to quickly scan their websites and find unnecessary CSS without needing extensive technical knowledge.
  • Cost Savings
    By eliminating unused CSS, it reduces the amount of data that needs to be transmitted and stored, potentially saving on hosting and bandwidth costs.
  • Improved Maintenance
    With a reduction in CSS file size, future maintenance becomes easier and more manageable, making it simpler to update or refactor code.

Possible disadvantages of Unused CSS finder

  • False Positives
    May incorrectly identify CSS as unused if the tool does not recognize dynamic changes or conditional loading, which can lead to accidental removal of necessary styles.
  • Dependency on External Tool
    Relying on an external tool could present privacy and security concerns, especially when sharing potentially sensitive code and styling information.
  • Manual Verification
    Requires manual verification of results to ensure important styles are not removed, which can be time-consuming and somewhat negate the tool's time savings.
  • Incompatibility with Complex Frameworks
    Might not effectively handle complex CSS frameworks or preprocessors, where styles are used indirectly or dynamically through Javascript or server-side frameworks.

Analysis of Enzyme

Overall verdict

  • Enzyme is generally considered a good tool for testing React applications, especially among developers familiar with its API. However, it is worth noting that there has been a shift towards using React Testing Library, which has gained popularity for its focus on testing the application as users would interact with it.

Why this product is good

  • Enzyme is a popular JavaScript testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output. It provides methods for rendering components, interacting with them, and testing their lifecycle methods, which are essential for writing comprehensive tests for your React applications.

Recommended for

    Enzyme is recommended for developers who are working on React applications and prefer a testing library that provides a more detailed inspection of component internals, or for those maintaining legacy codebases that already rely on Enzyme. If you value testing that emphasizes implementation details, Enzyme can be a good choice.

Enzyme videos

Enzymes (Updated)

More videos:

  • Review - Enzymes
  • Review - Over-the-Counter Enzyme Supplements Explained: Mayo Clinic Physician Explains Pros, Cons

Unused CSS finder videos

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Category Popularity

0-100% (relative to Enzyme and Unused CSS finder)
Developer Tools
51 51%
49% 49
Design Tools
44 44%
56% 56
Front End Package Manager
Development
44 44%
56% 56

User comments

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Social recommendations and mentions

Based on our record, Enzyme seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Enzyme mentions (3)

  • Top React Testing Libraries in 2025
    Enzyme is a widely-used testing utility that provides robust tools for interacting with and inspecting React components. Its API supports shallow, full, and static rendering, enabling developers to test components in isolation or with their child components. Enzyme also allows testing lifecycle methods, making it ideal for applications with complex state and props interactions. - Source: dev.to / about 2 months ago
  • How we have managed to run Enzyme tests with React 18 app.
    Like many other companies with mature software, we found ourselves at a crossroads with our React application. The app, initially developed in early 2019, was built with React 16 and used Enzyme for unit testing. Over the past five years, the app grew, evolved, gained new features, and went though minor and major refactorings. Obviously, as responsible engineers we always maintained unit test coverage around... - Source: dev.to / 7 months ago
  • What would you consider to be a must for a modern 2022 dev stack?
    React testing library instead of enzyme for testing react UIs. I'll never go back. Source: about 3 years ago

Unused CSS finder mentions (0)

We have not tracked any mentions of Unused CSS finder yet. Tracking of Unused CSS finder recommendations started around Mar 2021.

What are some alternatives?

When comparing Enzyme and Unused CSS finder, you can also consider the following products

Ava - Making conversations accessible for the deaf

CSS Peeper - Smart CSS viewer tailored for Designers.

react-testing-library - [`React Testing Library`][gh] builds on top of `DOM Testing Library` by adding

Purgecss - Easily remove unused CSS

EyeJS - A JavaScript testing framework for the real world.

CSSViewer - A simple CSS property viewer