Quote:Why Your VBA Code Can't Be TestedUnlock the full potential of VBA development with this comprehensive guide to unit testing and testable code architecture. Whether you're a seasoned VBA developer or just starting out, this book will show you how to implement best practices like abstractions, interfaces, dependency injection, mocking**, and class factories** to make your code cleaner, more flexible, and easy to test.You'll learn how to:- Write maintainable VBA code that can be tested in isolation.- Build real-world projects that use **conditional compilation** to switch between production and testing environments seamlessly.- Structure your code using interfaces*and class factories to separate logic and data, ensuring your VBA applications are adaptable and scalable.- Implement mocking techniques to simulate dependencies like file systems, APIs, or databases in tests.- Apply all these concepts to build a robust discount calculator with real and mock data providers.With hands-on examples, clear explanations, and practical techniques, this book will transform how you write and test your VBA code. Whether you're working on a small project or large-scale VBA application, this guide will help you build high-quality, reliable, and easily testable code that stands the test of time.The code for the example project can be downloaded and there is a link to an accompanying video.