What is Ruby Minitest?

Minitest is a testing tool for Ruby that provides a complete suite of testing facilities. It also supports behaviour-driven development, mocking and benchmarking. With the release of Ruby 1.9, it was added to Ruby’s standard library, which increased its popularity.

How do you run a Minitest test?

To run a Minitest test, the only setup you really need is to require the autorun file at the beginning of a test file: require ‘minitest/autorun’ . This is good if you’d like to keep the code small. A better way to get started with Minitest is to have Bundler create a template project for you.

Is Minitest faster than RSpec?

Minitest loads faster than RSpec (it’s about 4 files of code compared to RSpec having many files spread across 3 gems)–but note that RSpec is by no means slow; in most of my projects these days, I get test feedback from RSpec in under a second (and often in under 500 ms).

What is mocking in Ruby?

Mocking is a technique in test-driven development (TDD) that involves using fake dependent objects or methods in order to write a test. When you are working with objects which return non-deterministic values or depend on an external resource, e.g. a method that returns an RSS feed from a server.

What is RSpec in Ruby?

RSpec is a computer domain-specific language (DSL) (particular application domain) testing tool written in the programming language Ruby to test Ruby code. It is a behavior-driven development (BDD) framework which is extensively used in production applications.

What is testing in Ruby on Rails?

By running your Rails tests you can ensure your code adheres to the desired functionality even after some major code refactoring. Rails tests can also simulate browser requests and thus you can test your application’s response without having to test it through your browser.

Why does Rails use Minitest?

It’s small, fast, and it aims to make tests clean and readable. Minitest is the default testing suite used with Rails, so no further setup is required to get it to work. Along with RSpec, it is one of the two most commonly used testing suites used in Ruby.

Is RSpec a framework?

How do you stub in Minitest?

Stubbing in Minitest is done by calling . stub on the object/class that you want to stub a method on, with three arguments: the method name, the return value of the stub and a block. The block is basically the scope of the stub, or in other words, the stub will work only in the provided block.