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Capybara vs Happo.io: What are the differences?
Developers describe Capybara as "Acceptance test framework for web applications". Capybara helps you test web applications by simulating how a real user would interact with your app. It is agnostic about the driver running your tests and comes with Rack::Test and Selenium support built in. WebKit is supported through an external gem. On the other hand, Happo.io is detailed as "Cross-platform, cross-browser screenshot testing for modern user interfaces". Happo is a visual regression testing tool. It hooks into your CI environment to compare the visual appearance of UI components before and after a change. Screenshots are taken in different browsers and across different screen sizes to ensure consistent cross-browser and responsive styling of your application.
Capybara and Happo.io belong to "Testing Frameworks" category of the tech stack.
Some of the features offered by Capybara are:
- No setup necessary for Rails and Rack application. Works out of the box.
- Intuitive API which mimics the language an actual user would use.
- Switch the backend your tests run against from fast headless mode to an actual browser with no changes to your tests.
On the other hand, Happo.io provides the following key features:
- No more manual parsing of CSS
- See the effects of changes directly
- Test individual components in isolation
Capybara is an open source tool with 8.84K GitHub stars and 1.29K GitHub forks. Here's a link to Capybara's open source repository on GitHub.
Pros of Capybara
- Best acceptance test framework for Ruby on Rails apps12
- Synchronous with Rack::Test2
- Fast with Rack::Test1
Pros of Happo.io
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Cons of Capybara
- Hard to make reproducible tests when using with browser1
Cons of Happo.io
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