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Cypress.io VS Terser

Compare Cypress.io VS Terser and see what are their differences

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Cypress.io logo Cypress.io

Slow, difficult and unreliable testing for anything that runs in a browser. Install Cypress in seconds and take the pain out of front-end testing.

Terser logo Terser

JavaScript parser, mangler, optimizer and beautifier toolkit for ES6+
  • Cypress.io Landing page
    Landing page //
    2023-04-17
  • Terser Landing page
    Landing page //
    2023-09-25

Cypress.io features and specs

  • Easy Setup and Configuration
    Cypress.io is known for its straightforward setup process, requiring minimal configuration to get started with writing and running tests, making it very accessible for developers new to end-to-end testing.
  • Real-time Reloads
    Cypress offers real-time reloading of tests, which improves the development experience by allowing instant feedback on test results as code changes are made.
  • Time Travel Debugging
    Cypress provides the ability to 'time travel' through tests by taking snapshots of the application state at different steps, making it easier to debug and understand failures.
  • Automatic Waiting
    Tests in Cypress automatically wait for commands and assertions, eliminating the need for manual waits and helping to avoid flaky tests due to timing issues.
  • Built-in Mocking and Stubbing
    Cypress has built-in capabilities for mocking and stubbing network requests, which simplifies testing of applications that depend on various services and APIs.
  • Rich Documentation and Community Support
    Cypress boasts comprehensive documentation and an active community, providing plenty of resources for learning and troubleshooting.
  • Cross Browser Testing
    Cypress supports testing in multiple browsers, including Chrome, Firefox, and Edge, ensuring compatibility across different environments.

Possible disadvantages of Cypress.io

  • Limited Browser Support
    Although Cypress supports several major browsers, it does not support legacy browsers like Internet Explorer, which can be a disadvantage for projects that require testing across a wider range of browsers.
  • No Native Mobile App Testing
    Cypress does not natively support mobile app testing, limiting its use for projects that need end-to-end testing on mobile platforms.
  • Heavy Memory Usage
    Cypress can consume significant system resources, particularly memory, which may impact performance during large or complex test runs.
  • Limited Parallelism
    By default, Cypress's parallel execution capabilities are limited, which can slow down the test suite execution for larger projects, although this can be mitigated with the Dashboard Service (a paid feature).
  • Learning Curve for Advanced Features
    While basic tests are easy to set up, leveraging advanced features like custom commands, plugins, and complex test setups can require a steeper learning curve.
  • Incompatibility with Some Testing Ecosystems
    Cypress's architecture and testing approach can sometimes cause compatibility issues with certain testing frameworks and libraries, particularly those that are tightly coupled with traditional WebDriver-based tools.

Terser features and specs

  • Highly Effective Minification
    Terser provides comprehensive minification capabilities, significantly reducing JavaScript file sizes, which can lead to faster load times and improved application performance.
  • ES6+ Support
    Terser supports modern JavaScript syntax, making it suitable for projects using ES6 features and beyond, ensuring compatibility with the latest JavaScript standards.
  • Source Maps
    Terser can generate source maps, allowing developers to map minified code back to the original source code, which is crucial for debugging and maintaining large codebases.
  • Plugin Friendly
    Terser integrates well with various build tools like Webpack, Rollup, and others, offering seamless integration into existing development workflows.
  • Configurable
    Terser offers a high degree of configurability, enabling developers to tailor the minification process according to their specific needs and restrictions.

Possible disadvantages of Terser

  • Complex Configuration
    The array of options and configurations available in Terser can be overwhelming for new users or those unfamiliar with JavaScript minification processes.
  • Potential Bugs
    As with any complex minification tool, there's a risk of bugs or issues being introduced, especially if certain advanced or experimental features are used.
  • Performance Overhead
    Minification, in general, requires additional processing time during build steps, which can increase CI/CD pipeline durations, particularly for large projects.
  • Readability Loss
    Minified code is difficult to read and debug without source maps, so reliance on Terser makes generating source maps a necessity, which might not always be desired or feasible.
  • Dependency Maintenance
    Keeping Terser and its related dependencies updated can be a maintenance burden, especially if breaking changes occur between versions.

Analysis of Cypress.io

Overall verdict

  • Cypress.io is considered a good testing tool for developers due to its efficiency, ease of use, and robust testing capabilities. Its growing community and continuous updates make it a worthwhile choice for web testing.

Why this product is good

  • Cypress.io is a powerful end-to-end testing framework for web applications. It offers a user-friendly interface, excellent documentation, and provides fast and reliable testing with real-time reloads and debugging. It also integrates well with CI/CD pipelines and supports modern JavaScript frameworks like React, Angular, and Vue.js.

Recommended for

  • Frontend developers who need to test web applications.
  • Teams looking for a reliable end-to-end testing solution.
  • Projects using modern JavaScript frameworks like React, Angular, or Vue.js.
  • Developers who require a tool with extensive documentation and community support.

Cypress.io videos

Introduction to automation testing with Cypress.io (Non-selenium framework)

More videos:

  • Review - Testing Angular with Cypress.io | Joe Eames | AngularConnect 2018

Terser videos

No Terser videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Cypress.io and Terser)
Automated Testing
100 100%
0% 0
Web Application Bundler
0 0%
100% 100
Browser Testing
100 100%
0% 0
Tool
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Cypress.io and Terser

Cypress.io Reviews

20 Best JavaScript Frameworks For 2023
Cypress is a holistic automation testing framework where the tester can perform unit, integration, end-to-end, and regression testing. Additionally, they may orchestrate and unify outcomes with quality measurements and useful insights that support the agile workplace by leveraging the Cypress cloud.
Top 10 Perfecto alternatives with Zebrunner on top
- is a SaaS web app for easy scaling test runs and debugging failed tests. Pairs with the open source Cypress Test Runner.
Source: zebrunner.com

Terser Reviews

We have no reviews of Terser yet.
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Social recommendations and mentions

Based on our record, Cypress.io should be more popular than Terser. It has been mentiond 27 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.

Cypress.io mentions (27)

  • Ensuring Web Accessibility with Cypress: A Comprehensive Guide
    Feature: Web Accessibility Tests Feature: Web Accessibility Tests Scenario Outline: Verify all WCAG Violations Given I am on the "" page And Verify all Accessibility Violations Scenario Outline: Verify P1,P2 WCAG Violations Given I am on the "" page And Verify only P1, P2 issues Examples: | url | | https://google.com | | https://amazon.in | | https://agoda.com | |... - Source: dev.to / 10 months ago
  • Simulating Internet Outage and Recovery using Cypress
    In this blog post, we'll explore a Cypress test that replicates this scenario, utilizing the powerful intercept command to manipulate network requests and responses. - Source: dev.to / over 1 year ago
  • Scraping a site?
    Maybe something like Cypress is what you're looking for? Cypress.io. Source: about 2 years ago
  • How to write tests in Django for JavaScript fetch
    You won't be able to test the javascript function itself from within python, but you can exercise the front-end code using something like cypress (https://cypress.io) or the older but still respectable selenium (https://selenium.dev). Source: about 2 years ago
  • What's your CI/CD flow made of?
    How are they run (services (ie. GitHub Action Runners, SauceLabs, Cypress.io, etc.), or self hosted autoscaling infrastructures)? Source: over 2 years ago
View more

Terser mentions (13)

  • 10 Bad Habits That Can Slow Down Your JavaScript Applications 🐌
    Example: You've got a main.js file that's as long as a Tolstoy novel. Fix: Use tools like UglifyJS or Terser to minify your code. They'll squeeze out all the unnecessary bits and give you a sleeker, faster-loading file. - Source: dev.to / over 1 year ago
  • Things you forgot because of React
    They can do it, it is just turned off by default and require more advanced configuration. https://github.com/terser/terser#cli-mangling-property-names.... - Source: Hacker News / almost 2 years ago
  • Understanding Source Maps: Simplifying Debugging
    Minifying is a common practice for optimizing production code. (for example, using Terser to minify and mangle JavaScript). - Source: dev.to / almost 2 years ago
  • Minify private methods in a TypeScript class
    Terser is JavaScript compressor that can minified specific method names. - Source: dev.to / over 2 years ago
  • React Native CI/CD build speed improved by 22% with one line of code
    Every release build of React Native uses terser to reduce the size of your JavaScript. And it operation can be omitted for Staging/Beta builds. - Source: dev.to / over 2 years ago
View more

What are some alternatives?

When comparing Cypress.io and Terser, you can also consider the following products

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

JavaScript Obfuscator - JavaScript Obfuscator is a free online tool that obfuscates your source code, preventing it from being stolen and used without permission.

Katalon - Built on the top of Selenium and Appium, Katalon Studio is a free and powerful automated testing tool for web testing, mobile testing, and API testing.

UglifyJS - JavaScript minifier, beautifier, mangler and parser toolkit.

puppeteer - Puppeteer is a Node library which provides a high-level API to control headless Chrome or Chromium...

Closure Compiler - The Closure Compiler is a tool for making JavaScript download and run faster.