Capybara vs JUnit: What are the differences?

1. Syntax: Capybara is a testing framework specifically designed for web applications, allowing users to interact with the application through web elements. JUnit, on the other hand, is a unit testing framework for Java that focuses on testing individual units or components of code.
2. Language Support: Capybara is language agnostic, meaning it can be used with multiple programming languages, including Ruby, Java, and Python. JUnit, on the other hand, is primarily used with Java for writing and executing unit tests.
3. Focus: Capybara is more geared towards acceptance testing, focusing on simulating user interactions and behavior on the web application. JUnit, on the other hand, is more suitable for writing and running unit tests to validate the functionality of individual units of code.
4. Integration: Capybara is commonly used with Ruby on Rails for testing web applications built on this framework. JUnit, on the other hand, is often integrated with various Java development environments and build tools like Maven and Gradle.
5. Assertions: In Capybara, assertions are often written in a more human-readable syntax, making it easier for non-technical users to understand the test results. JUnit, on the other hand, follows a more traditional assertion approach using methods like assertEquals and assertTrue for validation.

In Summary, Capybara is focused on acceptance testing for web applications with a user interaction simulation approach, while JUnit is primarily used for writing unit tests in Java with a focus on individual code components.