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Capybara vs RSpec: What are the differences?

Capybara vs RSpec

1. Interaction with Web Applications: Capybara is a tool used for acceptance testing of web applications. It allows developers to interact with web elements and perform actions like filling forms, clicking buttons, and navigating between pages. On the other hand, RSpec is a behavior-driven testing framework that focuses on writing specifications for individual units of code.

2. Level of Abstraction: Capybara operates at a higher level of abstraction compared to RSpec. It provides a domain-specific language (DSL) that hides the underlying implementation details and makes it easier to write test scenarios in a more natural and readable way. RSpec, on the other hand, requires developers to write tests at a lower level, specifying the expected behavior of individual methods or classes.

3. Integration Testing vs. Unit Testing: Capybara is primarily used for integration testing, which involves testing the interaction between different components or systems of an application. It simulates user behavior and verifies that the application works correctly as a whole. RSpec, on the other hand, is more focused on unit testing, which involves testing individual units of code in isolation to ensure their correctness.

4. Support for Web Drivers: Capybara supports multiple web drivers, including Selenium, which allows tests to be run in real web browsers. This enables developers to test their applications in different browser environments and ensure browser compatibility. RSpec, on the other hand, does not have built-in support for web drivers and is primarily used for testing code that does not interact with a web browser.

5. Syntax and Structure: Capybara uses a DSL that is specifically designed for writing acceptance tests. It provides a set of methods and matchers that allow developers to express their test scenarios in a more natural and intuitive way. RSpec, on the other hand, has its own syntax and structure that is focused on writing behavior-driven tests for individual units of code.

6. Test Outputs: Capybara tests typically produce HTML outputs that describe the state of the web application and any errors or failures encountered during the test. These outputs can be used for debugging and generating reports. RSpec tests, on the other hand, produce textual outputs that describe the success or failure of the individual tests and can be used to quickly identify which tests are failing.

In Summary, Capybara is a tool used for acceptance testing of web applications, providing a higher level of abstraction and support for web drivers. RSpec, on the other hand, is a behavior-driven testing framework focused on writing specifications for individual units of code.

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Pros of Capybara
Pros of RSpec
  • 12
    Best acceptance test framework for Ruby on Rails apps
  • 2
    Synchronous with Rack::Test
  • 1
    Fast with Rack::Test
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    Cons of Capybara
    Cons of RSpec
    • 1
      Hard to make reproducible tests when using with browser
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      What is Capybara?

      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 RSpec?

      Behaviour Driven Development for Ruby. Making TDD Productive and Fun.

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      What companies use Capybara?
      What companies use RSpec?
      See which teams inside your own company are using Capybara or RSpec.
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      What tools integrate with Capybara?
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