TDD Fundamentals: Building Robust Password Validation in Go

Writing robust and secure code starts with reliable input validation. Learn how the principles of Test-Driven Development (TDD) ensure your core business logic is always correct, maintainable, and thoroughly tested. By the end of this course, you will understand how to use TDD to drive the design of reusable components, resulting in production-ready validation functions written in idiomatic Go. What you'll learn: * Learn the core concepts of Test-Driven Development (TDD) and the fundamental Red-Green-Refactor cycle. * Practice writing unit tests in Go using the standard `testing` package before writing any implementation code. * Apply TDD to develop complex validation logic, such as enforcing specific requirements like minimum character types or digit counts. * Master refactoring techniques to improve code clarity and efficiency after achieving passing tests. * Understand how to structure Go functions and error handling for maximum testability and clean separation of concerns. The course begins with foundational TDD principles and setting up a Go testing environment. We then move step-by-step through developing a complete password validator, focusing on writing tests that define the requirements and driving the implementation through those tests. This course is designed for absolute beginners in TDD or those new to writing tests in Go. No prior experience with test frameworks or advanced Go features is required. Start building testable, high-quality Go applications today.