Welcome
What will you learn in this course?
Who is the course for and prerequisites
From Zero to Hero: Writing Testable Code in C#
Learn how to write testable C# code using modern coding practices
About This Course
Everyone knows by now that testing is a mandatory part of software development, but it's very easy to make it hard for yourself to write tests for the code you just wrote. Writing testable code is a craft practised by the most seasoned software engineers, and it is usually a sign of a clean codebase that uses modern practices. Nowadays, it is pretty easy to use AI coding assistants to write tests for you, but true engineers develop a deep understanding of how you can write testable code. In this course, Gui Ferreira will walk you through why writing testable code using C# is so important and show you step-by-step how you can learn this art and follow it for the code you write.
Course Curriculum
4h 30m 8 sections
The Cost of Untestable Code
What makes Code "Testable Code"
What is Unit Testing
How to approach Testable Code
Introduction
Clear Inputs and Outputs
Explicit Error Handling
Separation of Construction and Logic
Visible State Changes
Exercise
Section Recap
Introduction
Identifying and Extracting Responsibilities
Dealing with Constructor Bloat
Creating Effective Injection Points
Injectable vs. Newable Objects
Composition of Narrow Components
Exercise
Section Recap
Introduction
Working with Static Dependencies
Breaking Dependency Chains
Creating Abstractions for External Services
Isolating Framework Code
Exercise
Section Recap
Introduction
Avoiding Test Interference
Converting Static Dependencies to Testable Code
Implementing Pure Functions
Replacing Traditional Singletons
Exercise
Section Recap
Introduction
Writing Testable ASP.NET Core Controllers
Designing Entity Framework Code for Testability
Making Time-Dependent Code Testable
Creating Testable External Dependencies
Implementing Testable Authentication and Authorization
Section Recap
Conclusion
Course Details
Level From Zero to Hero
Duration 4h 30m
Rating 
Pro Only
$41.66 /month
when billed annually
Subscribe to Pro- Access to all courses
- Certificate of completion
Meet Your Instructor
Gui Ferreira
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