RSpec Mocking & Test Doubles FAQs

Question 1

When should I use a spy instead of a mock?

Accepted Answer

Use a spy when you want to verify that a method was called after the action has occurred (spy-first), whereas a mock sets expectations before the action is performed.

Question 2

How does this skill help with RSpec?

Accepted Answer

This skill provides Claude with domain-specific patterns and best practices for implementing doubles, ensuring your test suite follows industry standards for maintainability and clarity.

Question 3

What is RSpec Mocking?

Accepted Answer

RSpec mocking is the practice of using test doubles (stubs, mocks, and spies) to isolate the code under test from its dependencies, allowing for faster and more deterministic testing.

Question 4

Does it support partial mocking?

Accepted Answer

Yes, the skill includes guidance on partial mocking, which allows you to stub specific methods on real objects while retaining the original behavior of the rest of the object.

Question 5

Is this skill compatible with Ruby on Rails?

Accepted Answer

Yes, it is fully compatible with RSpec-Rails and covers common scenarios found in Rails applications, such as mocking mailers, background jobs, and service objects.

RSpec Mocking & Test Doubles

Key Features

Use Cases

RSpec Mocking & Test Doubles

Key Features

Use Cases