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LinkedIn Learning

Ruby: Testing with RSpec

via LinkedIn Learning

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Overview

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

Syllabus

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

Taught by

Kevin Skoglund

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