Test-driven iOS development with Swift 3 write testable and maintainable code to develop highly-functional iOS apps

Detailed Summary

This comprehensive guide begins by laying a strong foundation in the basics of test-driven development, ensuring that readers are thoroughly acquainted with the TDD cycle: Red, Green, Refactor. From there, it covers how to implement TDD with Swift 3, offering practical examples that reflect real-world scenarios.

The journey continues with an exploration of XCTest, Apple's native testing framework, providing ample information on its features and use cases. Readers are shown how to craft tests that effectively validate application logic, catching bugs and reducing the complexity of later refactoring efforts.

Each chapter is intelligently structured to build upon previous knowledge, gradually increasing the complexity of applications being developed. By the end of the book, you will have developed a thorough understanding of TDD, with the ability to apply its principles to any iOS project. Through its dedication to practical applications, the book empowers developers to test anything from model logic to the user interface.

Key Takeaways

• Understand and implement the three-phase cycle of TDD: Red, Green, Refactor.
• Get familiar with XCTest and how to use it effectively for testing iOS applications.
• Develop the ability to write tests that are maintainable, readable, and efficient.
• Learn to manage dependencies and create mock objects for isolated testing.
• Gain insights into best practices for writing clean and testable Swift code.

Famous Quotes from the Book

"Test-driven development is more about developing robust, fail-safe and clean software than merely verifying if your code runs correctly."

"By writing tests first, we not only think about the function, but also the usability and edge cases that matter."