iOS Unit Testing by Example by Reid, Jon -- Read -- Imperial Library of Trantor

Index

iOS Unit Testing by Example

About the Pragmatic Bookshelf Table of Contents Early praise for iOS Unit Testing by Example Foreword Preface

How This Book Is Organized Disclaimer: No SwiftUI Support Online Resources Acknowledgments

Pa rt 1 Foundations

Chapter 1: Assert Yourself

What Are Unit Tests Anyway? Create a Place to Play with Tests Write Your First Assertion Add a Descriptive Message Avoid Conditionals in Tests Describe Objects upon Failure Test for Equality Test Equality with Optionals Fudge Equality with Doubles and Floats Avoid Redundant Messages Choose the Right Assertion Key Takeaways Activities What’s Next?

Chapter 2: Manage Your Test Life Cycles

Make a New Place to Play Start from Test Zero Hook Up Tests to Production Code Examine Console Output Observe Object Life Cycles to Learn the P hases of a Test The Wrong Way to Reduce Duplicate Test Cod e Learn How XCTest Manages Test Cases Use setUp() and tearDown() Key Takeaways Activities What’s Next?

Chapter 3: Measure Code Coverage and Add Tests

Make a New Place to Play Enable Code Coverage Examine Code Coverage Results Drill into a Partially Covered Lin e Add Tests for Existing Code Cover a Conditional Cover a Loop Cover Statements in a Sequence Avoid Percentage Targets, Embrace Forw ard Movement Key Takeaways Activities What’s Next?

Chapter 4: Take Control of Application Launch

Make a New Place to Play Observe the Default Behavior Learn About the Test Launch Sequence Bypass the Normal App Delegate Put Up with the Initial View Control ler Tweak Your Testing App Dele gate Key Takeaways Activities What’s Next?

Chapter 5: Load View Controllers

Make a New Place to Play Set Up a Storyboard-Based View Cont roller for Experiments Load a Storyboard-Based View Control ler Set Up a XIB-Based View Controller for Exp eriments Load a XIB-Based View Controller Set Up a Code-Based View Controll er for Experiments Load a Code-Based View Controller Key Takeaways Activities What’s Next?

Chapter 6: Manage Difficult Dependencies

Be Okay with Problem-Free Dependenc ies Identify Difficult Dependencies Create Boundaries to Isolate Dependencie s Make a New Place to Play Add Backdoors to Singletons You O wn Subclass and Override: A Legacy Co de Technique Inject Instances Through Initializer s or Properties Inject Closures to Make New Instances Key Takeaways Activities What’s Next?

Part 2: iOS Testing Tips and Techniques

Chapter 7: Testing Outlet Connections

Make a New Place to Play Test Outlet Connections Check the Effectiveness of Failure Mes sages Key Takeaways Activities What’s Next?

Chapter 8: Testing Button Taps (Using Actions)

Make a Place to Play with a Button Test Button Taps Make a Test Helper for Button Taps Key Takeaways Activities What’s Next?

Chapter 9: Testing Alerts

Make a New Place to Play Add the Helper Framework to the Pro ject Test Alerts Using the Alert Verifier Move the SUT into the Test Fixture Add Tests for Alert Buttons Key Takeaways Activities What’s Next?

Chapter 10: Testing Navigation Between Screens

Make a New Place to Play Set Up Code-Based Navigation Set Up Segue-Based Navigation Test Code-Based Push Navigation Test Code-Based Modal Presentation Test Segue-Based Push Navigation Test Segue-Based Modal Navigation Key Takeaways Activities What’s Next?

Chapter 11: Testing UserDefaults (with Fakes)

Make a New Place to Play Isolate UserDefaults with Depen dency Injection Extract a Protocol to Support Test Doubles Make a Fake Object Test UserDefaults Key Takeaways Activities What’s Next?

Chapter 12: Testing Network Requests (with Mocks)

Make a New Place to Play Isolate URLSession with De pendency Injection Extract a URLSession Prot ocol for Test Doubles Make a Test Spy Design the Test Case Promote the Test Spy into a Mock Object Improve Mock Object Reporting Key Takeaways Activities What’s Next?

Chapter 13: Testing Network Responses (and Closures)

Make a New Place to Play Parse the Response Start with a Fresh Test Spy Design the Test Case Test Asynchronous Code Keep Asynchronous Code in Its Closure Test an Error Scenario Key Takeaways Activities What’s Next?

Chapter 14: Testing Text Fields (and Delegate Methods)

Make a Place to Play Test the Outlets Test Attributes and Wrangle UIKit Descriptions Test Delegate Methods Test Input Focus Key Takeaways Activities What’s Next?

Chapter 15: Testing Table Views

Make a Place to Play Test Table Views Key Takeaways Activities What’s Next?

Chapter 16: Testing View Appearance (with Snapshots)

Make a Place to Play Add FBSnapshotTestCase to a Test T arget Set the Location for Reference Im ages Write a Snapshot Test See the Difference in a Snapshot Failu re Manage Your Snapshot Tests Key Takeaways Activities What’s Next?

Part 3: Using Your New Power

Chapter 17: Unleash the Power of Refactoring

What Is Refactoring? Lay Out the Views for Our Practic e App Add the Code to Our Practice App Replace the Difficult Dependency with a Mock Object Write the First Tests of the Change Password View Controller Test the Cancel Button Test the Submit Button Test the Text Field Delegat e Method Refactor to Break Up a Long Function Extract a Method with Parameters Clean Up a Few More Places Key Takeaways What’s Next?

Chapter 18: Refactoring: Moving to MVVM

What Is MVVM? Replace String Literals to Use a View Model Overwrite Storyboard Labels Respond to Changes in the View Model Move Logic into the View Model Key Takeaways What’s Next?

Chapter 19: Refactoring: Moving to MVP

What Is MVP? Set Up the MVP Types Extract Methods into the View Comm ands Protocol Move a Function into the Pr esenter Remove the didSet Observer Use Refactoring Principles to Reparent a Swift Type Move Several Functions to the Pres enter Extract Password Validation into Its O wn Type Finish Up the Refactoring to MVP Key Takeaways What’s Next?

Chapter 20: Test-Driven Development Beckons to You

What Is TDD? Make a New Place to Play with TDD Define the Requirements of the Time -of-Day Greeter Design the First Failing Test with Bar e Production Code Make the First Test Pass with “Good M orning” Refactor the First Test to Make I t More Expressive Repeat the TDD Steps for the Second T est Add Tests to Expand “Good Afternoo n” Implement “Good Evening” Step Back to Refactor the Method as a Whole Add the Name to the Greeting Key Takeaways What’s Next?

Bibliography