Elixir Unit Testing with Dependency Injection

Writing reliable and maintainable Elixir applications requires effective unit testing. Without proper isolation, tests can become brittle, slow, and hard to debug, leading to a frustrating development experience. This course provides a clear, practical path to mastering code isolation in Elixir unit tests. By understanding and applying dependency injection and test doubles, you will be able to write focused, fast, and trustworthy tests that truly reflect your code's behavior. What you'll learn: - Understand the core principles of effective unit testing and code isolation in Elixir. - Learn to implement dependency injection techniques to make your modules testable. - Master the creation and use of various test doubles, such as mocks and stubs, for controlled testing. - Practice writing focused and reliable unit tests that eliminate external dependencies. - Apply modern best practices for structuring Elixir applications to enhance testability. - Explore strategies for handling complex scenarios and common pitfalls in isolated testing. The course begins with foundational concepts of testing and isolation, then progressively introduces dependency injection patterns and the practical application of test doubles. You will work through examples and exercises to solidify your understanding of each concept. This course is designed for beginner Elixir developers who want to improve their testing skills. No prior experience with dependency injection or advanced testing concepts is required. Start building more robust and maintainable Elixir code today.