From Zero to Hero: Writing Testable Code in C#
Learn how to easily write code with Testing in mind.
Write C# Code With Testing in Mind
If you're stuck in an endless loop of:
- Writing code
- Realising it's impossible to test
- Refactoring everything from scratch
...then I've got news for you: there's a better way.
What you'll learn
- Define explicit behaviors with clear inputs and outputs
- Create narrow responsibilities and effective injection points
- Master dependency isolation and break dependency chains
- Minimize side effects and avoid test interference
- Write testable ASP.NET Core Controllers and Entity Framework code
- Implement testable authentication and time-dependent code
The Hidden Cost of Untestable Code
Most C# developers don't realise that every untestable line of code they write creates a time bomb.
That quick hack you used to meet a deadline? The tightly-coupled class that "just works"? The static method calls scattered throughout your codebase?
They're all silently draining your productivity, killing your confidence, and making every future change a nightmare waiting to happen.
This Course is your escape plan
I'll show you exactly how to write C# code that:
- Actually wants to be tested - No more wrestling with your own code
- Makes bugs obvious - Before they make it to production
- Stays maintainable for years - Even when the original developers are long gone
In just 4 hours, you'll master the techniques that took me 15 years of painful trial-and-error to discover.
What makes this different from other Testing Courses?
This isn't about testing theory or academic patterns. This is about writing real-world C# code that you can actually test without wanting to pull your hair out.
You'll learn:
- How to design code with explicit behaviours that practically test themselves
- The art of creating narrow responsibilities that make unit tests easy
- Bulletproof techniques for isolating stubborn dependencies
- Simple ways to minimise side effects that sabotage your tests
Real solutions for real code
We'll tackle the stuff that actually matters in your day-to-day work:
- Making ASP.NET Core controllers that don't fight your test suite
- Designing Entity Framework code you can test without a database
- Creating time-dependent code that doesn't need time travel to test
- Building authentication and authorisation that's actually verifiable
By the end, you'll instinctively know how to write testable code from the start – saving you countless hours of frustration and rewrites.