Ruby on Rails Ruby on Rails Testing, Security & API Development

Question 1

What testing framework does Rails include by default for unit and integration tests?

Accepted Answer

Minitest

Answer

Rails ships with Minitest as its default testing framework, providing test cases for models, controllers, and integration scenarios.

Question 2

What is the purpose of a Rails 'system test'?

Accepted Answer

End-to-end browser testing that simulates real user interactions

Answer

System tests in Rails use a real browser (via Capybara) to test full user workflows from clicking links to form submissions.

Question 3

What does CSRF protection do in a Rails application?

Accepted Answer

Prevents cross-site request forgery by validating an authenticity token with form submissions

Answer

Rails CSRF protection embeds a unique token in forms and validates it on non-GET requests to prevent malicious cross-site form submissions.

Question 4

In Rails API development, which method is used to render a JSON response from a controller?

Accepted Answer

render json: @object

Answer

`render json: @object` serializes the Ruby object to JSON and sends it as the HTTP response with the appropriate content-type.

Question 5

What is Strong Parameters in Rails and why is it used?

Accepted Answer

A security feature that requires explicitly permitting which parameters can be mass-assigned

Answer

Strong Parameters (via `params.require(...).permit(...)`) prevents mass-assignment vulnerabilities by whitelisting which request parameters can update model attributes.

Ruby on Rails Practice Test

Ruby on Rails Practice Test

Ruby on Rails Ruby on Rails Testing, Security & API Development