Effective Testing With RSpec 3 · Build Ruby Apps With Confidence by Marston, Myron -- Read -- Imperial Library of Trantor

Index

Foreword Acknowledgments

From Myron Marston From Ian Dees

Introduction

How to Use This Book Code Snippets RSpec and Behavior-Driven Development Who We Are Who You Are A Note on Versions Online Resources

Part I. Getting Started

1. Getting Started With RSpec

Installing RSpec Your First Spec Understanding Failure Sharing Setup (But Not Sandwiches) Your Turn

2. From Writing Specs to Running Them

Customizing Your Specs’ Output Identifying Slow Examples Running Just What You Need Marking Work in Progress Your Turn

3. The RSpec Way

What Your Specs Are Doing for You Comparing Costs and Benefits Different Types of Specs Guidelines

Part II. Building an App With RSpec 3

4. Starting On the Outside: Acceptance Specs

First Steps Deciding What to Test First Checking the Response Filling In the Response Body Querying the Data Saving Your Progress: Pending Specs Your Turn

5. Testing in Isolation: Unit Specs

From Acceptance Specs to Unit Specs Filling In the First Spec Handling Success Refactoring Handling Failure Defining the Ledger Your Turn

6. Getting Real: Integration Specs

Hooking Up the Database Testing Ledger Behavior Testing the Invalid Case Isolating Your Specs Using Database Transactions Filling In the Behavior Querying Expenses Ensuring the Application Works for Real Your Turn

Part III. RSpec Core

7. Structuring Code Examples

Getting the Words Right Sharing Common Logic Sharing Example Groups Your Turn

8. Slicing and Dicing Specs with Metadata

Defining Metadata Reading Metadata Selecting Which Specs to Run Sharing Code Conditionally Changing How Your Specs Run Your Turn

9. Configuring RSpec

Command-Line Configuration Setting Command-Line Defaults Using a Custom Formatter RSpec.configure Your Turn

Part IV. RSpec Expectations

10. Exploring RSpec Expectations

Parts of an Expectation How Matchers Work Composing Matchers Generated Example Descriptions Your Turn

11. Matchers Included in RSpec Expectations

Primitive Matchers Higher-Order Matchers Block Matchers Your Turn

12. Creating Custom Matchers

Delegating to Existing Matchers Using Helper Methods Defining Matcher Aliases Negating Matchers Using the Matcher DSL Defining a Matcher Class Your Turn

Part V. RSpec Mocks

13. Understanding Test Doubles

Types of Test Doubles Usage Modes: Mocks, Stubs, and Spies Origins: Pure, Partial, and Verifying Doubles Your Turn

14. Customizing Test Doubles

Configuring Responses Setting Constraints Your Turn

15. Using Test Doubles Effectively

Constructing Your Test Environment Stubject (Stubbing the Subject) Using Partial Doubles Effectively Connecting the Test Subject to Its Environment The Risks of Mocking Third-Party Code High-Fidelity Fakes Faking I/O with StringIO Wrapping a Third-Party Dependency Your Turn

A1. RSpec and the Wider Ruby Ecosystem

Bundler Rake Using Parts of RSpec With Other Test Frameworks

A2. Using RSpec with Rails

Installation Using rspec-rails Spec Types Spec Types Cheat Sheet Rails Matchers Cheat Sheet

A3. Matcher Cheat Sheet

Value Matchers Block Matchers

A4. Bibliography

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