RSpec Matchers

What problem does it solve?

Writing robust and readable tests in Ruby can be challenging when expressing expectations. This skill guides you through using RSpec matchers to clearly define what should be true, improving test clarity and maintainability.

Core Features & Use Cases

• Understand and apply built-in matchers like eq, eql, equal/be, and truthiness checks to verify values and identities.
• Use type, predicate, collection, and change matchers to assert complex conditions and state transitions.
• Create and employ custom matchers to encapsulate common expectations across models and services.

Quick Start

Write an example expect statement like expect(actual).to eq(expected) to begin validating behavior.