Ruby TDD Foundations: Build Clean Applications with RSpec

Writing software that works consistently requires more than just writing code—it requires a reliable way to test it. Mastering Test-Driven Development (TDD) allows you to catch bugs early, design cleaner architectures, and write Ruby programs with complete confidence. This text-based course guides you through the foundational concepts of TDD using Ruby and RSpec. You will transition from writing basic scripts to developing highly structured, robust applications by learning how to break down complex problems into clear, testable specifications. What you'll learn: - Understand the core principles of Test-Driven Development and the Red-Green-Refactor cycle - Write clean, descriptive test suites using RSpec syntax and expectations - Isolate code dependencies effectively using modern test doubles, mocks, and stubs - Refactor legacy code safely with the protection of a robust test suite - Apply testing best practices to modern Ruby features and application structures You will start by exploring fundamental testing terminology and setting up your RSpec environment. From there, the material progresses logically through writing assertions, handling test doubles, and applying TDD workflows to practical programming challenges. This course is designed for aspiring software engineers, web developers, and Ruby programmers who are new to testing and TDD. No prior testing experience is required, though a basic understanding of Ruby syntax is helpful. Start building reliable, clean, and professional Ruby applications today.