Ruby: Testing with RSpec

Learn how to use RSpec, the Ruby testing framework that can help developers be more productive, write better code, and reduce bugs during development.

Introduction

• Welcome
• How to use the exercise files

1. Introducing RSpec

• What is RSpec?
• Why software tests are important
• Thinking in user stories
• Writing good tests

2. Installation

• Installing Ruby and RubyGems
• Installing RSpec
• Configuration

3. First Steps and Concepts

• Target code and the spec file
• Basic syntax
• Writing specs
• Running specs
• Skipping examples and working with pending examples

4. Working with Expectations

• Fundamentals
• A deprecated modifier: should
• Equivalence matchers
• Truthiness matchers
• Numeric comparison matchers
• Collections
• Other useful matchers
• Predicate matchers
• Observation matchers
• Complex expectations

5. Testing Efficiently

• Helper methods
• Hooks: before, after, and around
• Using the let method
• Setting a subject
• Implicitly defined subjects
• Shared examples

6. Test Doubles

• What are test doubles?
• Using mocks and stubs
• Partial test doubles
• Message expectations
• Message argument constraints
• Message count constraints
• Spies

7. Challenges

• Food-finder application
• Challenge: NumberHelper
• Solution: NumberHelper
• Challenge: StringExtend
• Solution: StringExtend
• Challenge: Restaurant
• Solution: Restaurant
• Challenge: Guide
• Solution: Guide

8. RSpec with Ruby on Rails

• Installing
• Generators
• Test database
• Transactional examples
• Model specs
• Helper specs
• Controller specs: Requests
• Controller specs: Responses
• View specs

9. Test-Driven Development (TDD)

• What is TDD?
• A TDD example: Part one
• A TDD example: Part two
• A TDD example: Part three
• A TDD example: Part four
• Benefits and disadvantages

10. Testing Tools

• Fixtures and factories
• Acceptance testing
• Automatic testing
• Other tools

Conclusion

• Goodbye