Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6

3 posts found #xunit

Newest Oldest Popular

Backend PART 14

Unit Testing in C#: xUnit, Theory/InlineData and Testable Code

The hidden dependencies behind a flaky test, an xUnit test project, Fact and Assert, Theory/InlineData/MemberData, taking time from outside with IClock, and pitfalls like decimal InlineData and async void.

7 Nov 2026 8 min 18

Backend PART 30

Integration Testing an ASP.NET Core Web API: End-to-End Tests with WebApplicationFactory

We spin up an ASP.NET Core Web API in memory with WebApplicationFactory and test it at the HTTP level: public partial class Program, swapping the database for in-memory SQLite, Location and ProblemDetails tests, and test isolation.

4 Nov 2026 9 min 47

Backend PART 29

Unit Testing an ASP.NET Core Web API: Service and Controller Tests with xUnit and Moq

Unit testing an ASP.NET Core Web API with xUnit and Moq: the right package versions for net6.0, AAA and naming, Setup and Verify, the Result/Value difference in ActionResult<T> tests, Theory, and a comparison with NSubstitute.

4 Nov 2026 11 min 41