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Capybara vs ScalaTest: What are the differences?
What is Capybara? 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.
What is ScalaTest? A testing tool in the Scala ecosystem. You can test Scala, Scala.js (JavaScript), and Java code with this tool. It makes it easy to take your testing to a higher, more productive level in new or existing Scala, Scala.js, or Java projects.
Capybara and ScalaTest can be primarily classified as "Testing Frameworks" tools.
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, ScalaTest provides the following key features:
- Test Scala, Scala.js (JavaScript), and Java code
- Designed to grow with the demands of its users
- Uses its own extension points to support several styles of testing out of the box
Capybara and ScalaTest are both open source tools. It seems that Capybara with 8.89K GitHub stars and 1.3K forks on GitHub has more adoption than ScalaTest with 847 GitHub stars and 271 GitHub forks.
Pros of Capybara
- Best acceptance test framework for Ruby on Rails apps12
- Synchronous with Rack::Test2
- Fast with Rack::Test1
Pros of ScalaTest
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Cons of Capybara
- Hard to make reproducible tests when using with browser1