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Introduction
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Fundamentals: Intro to Testing Principles
- Overview
- How to make testing a habit
- What level of test coverage to shoot for
- Test-driven development (TDD) vs. testing without TDD
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Fundamentals: Rails Testing Tools
- Overview
- RSpec vs. Minitest: which framework to learn
- Rails testing tools and how to use them
- The different kinds of RSpec tests and when to use each
- Adding tests to an existing project vs. starting fresh
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Fundamentals: Your First Practice Tests
- Overview
- Setting up a new Rails project for testing
- A Rails testing “hello world” using RSpec and Capybara
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Factory Bot: Introduction
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Factory Bot: Getting Started
- Installing Factory Bot
- Factory definitions
- Where to put factory definitions
- Factory Bot hello world
- Configuring Factory Bot with RSpec
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Factory Bot: Build Strategies and Faker
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Factory Bot: Advanced Usage
- Introduction
- Nested factories
- Traits
- When to use traits versus nested factories
- Callbacks
- Transient attributes
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RSpec Syntax: Introduction
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RSpec Syntax: The Structure of a Test
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RSpec Syntax: Understanding Blocks
- RSpec Syntax: Understanding Blocks
- Writing our own block
- Why this example is meaningful
- Implementing the example
- Coming back to the controller example
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RSpec Syntax: Let, Let! and Instance Variables
- The purpose of let and the differences between let and instance variables
- How let works and the difference between let and let!
- Takeaways
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RSpec Syntax: The Parts of an RSpec Test
- What we're going to do in this chapter
- The example code
- Specs, examples, "example groups" and "it blocks"
- The expect keyword
- What's next
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RSpec Syntax: Build Your Own RSpec, Part 1
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RSpec Syntax: Build Your Own RSpec, Part 2
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RSpec Syntax: Describe and Context
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System Specs: Introduction
- What this section will cover
- What system specs are
- When to write system specs
- The tools that support system specs
- Why I recommend against using Cucumber
- The difference between system specs and feature specs
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System Specs: Getting Started
- Installing Capybara and related tools
- RSpec + Capybara "hello world" revisited
- Logging the user in before tests
- Headless vs. not headless
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System Specs: Writing Specs for CRUD Features
- System Specs: Writing Specs for CRUD Features
- The three integration test cases I write for any Rails CRUD feature
- Creating a record with valid inputs
- Trying to create a record with invalid inputs
- Updating a record
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System Specs: Tutorial
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System Specs: Capybara's Domain-Specific Language (DSL)
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System Specs: Simplifying Test Code with Page Objects
- The challenge of keeping test code clean
- What a Page Object is and when it's helpful
- A Page Object example
- The obscure test
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Model Specs: Introduction
- The purpose of model specs
- Meaningful model specs vs. pointless model specs
- Why I don't recommend Shoulda matchers
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Model Specs: Tutorial, Part One
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Model Specs: Tutorial, Part Two
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Request Specs
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Mocks and Stubs
- Mocks and Stubs
- The problem with testing terminology
- Test doubles
- Stub explanation
- Mock explanation
- The difference between mocks and stubs
- Example application code
- Stub example
- Mock example
- Why I don't often use mocks or stubs in Rails
- What's next
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VCR and WebMock
Takeaways
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Master Rails testing with best practices, TDD techniques, and efficient tools. Learn to write robust tests for your Ruby on Rails applications and improve code quality.