Complete Guide to Unit Testing in .NET Core (NUnit & XUnit) (Udemy.com)
Master unit testing with NUnit, XUnit and MOQ with a real world N-Tier web application (.NET Core 6 and EF Core)
Created by: Bhrugen Patel
Last updated February 2026
What you will learn
- Learn unit testing from scratch
- What unit tests are for and how they are written
- How to set up and use the NUnit and XUnit test framework
- Run and Debug Unit Tests
- Write Mocks with Mocking Framework (MOQ)
- Implement unit testing in N-tier real world web application project using XUnit
Course Description
"Production application can break with a simple change that was unexpected to alter any other functionality" Sounds familiar right?!
Good news is, with well written unit test's this would be a thing of the past.
Automated testing has been a buzz word for a while but many times developers struggle to find a course that covers the fundamentals of unit testing while implementing what they learned in a real world project! That is the main focus of this course.
This course is all about writing effective unit tests using C# programming language and NUnit /XUnit as a unit testing framework. Along the way, we will learn the concepts related to unit testing. Today unit testing is an absolutely required skill from any professional developer. Companies expect from developers to know how to write unit tests using best practices. This course will help you setup a solid foundation with a real world example and how unit testing could be done in a .NET Core Web application with EF Core.
What is unit testing?
UNIT TESTING is a type of software testing where individual units or components of a software are tested. The purpose is to validate that each unit of the software code performs as expected.
Why learn unit testing?
Why should I learn unit testing? Why spend extra time to write code to test? Is manual testing not sufficient?
These are pretty common questions and I will answer them all but most of the times manual testing is much more time consuming and it is not as through as unit test. Unit tests take time once to write and can be executed for free every time!
As application grows, the cost of manual testing grows exponentially. And manual testing will never give 100% confidence with all the edge cases.. Automated tests help you to catch the bugs while it is in development phase, because of which they would be easier to resolve.
Will it help me with job?
Many times, skills comes with that will that skill help me achieve professionally. Unit testing is a very valuable skill with the current development cycle. It is a must have skill in most organizations for senior developers.
By end of this course you will have a solid foundation with unit testing. Along with a solid foundation we will implement what we learned in real world N-Tier web application with .NET 6 and EF Core.
Instructor Details
- 4.5 Rating
2,121 Reviews
Bhrugen Patel
I am a passionate and creative software engineer with a strong focus on simplicity and thorough details. I have been programming since high school and I have been involved with multiple web and desktop using .net.
I have a master's of science degree in computer science and a Bachelor of Computer Engineering. I also have many years of experience with .NET C# and .NET MVC. I enjoy teaching along with my full-time job.
For me, the most important part about writing and teaching code is to eliminate the hardships of every student out there who is willing to learn but cannot find adequate resource which is easy to understand. Coding is a way to be creative and have fun!
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Reviews
By Ahmed M. Elzubair on 4/8/2025
A well-structured and practical course! It does a great job covering both NUnit and XUnit, making unit testing in .NET Core much more approachable. Highly recommended for anyone looking to level up their testing skills.
By Michael Schmitz on 7/18/2024
Great course! I like the teachers style, he does not beat around the bush and goes straight into valuable information and examples. I really liked section 7 with the n-layer application. This was exactly what I has been looking for. How the course could be improved: - Assignments and solutions in every section - Recap what has been teached at every section's end
By Errol J Pais on 7/1/2024
I did come in with a lot of unit testing experience of MVC frameworks from other languages so I had that background already but I can see that part being valuable and essential part of rounding the course to developers who are new to testing. This course was beneficial for me because it showed how to apply a lot of the testing patterns I knew within the NUnit framework. I liked how the instructor started simple and with plenty of exercise opportunity, increased the complexity incrementally, finally landing on a "real world" MVC project where he touched how to test at each of the different levels (controller, services, repositories...) I also appreciated the "how to test well" advice, that does not come as part of the NUnit framework. I liked how the instructor structured the course to incrementally learn how to unit test, and finishing with unit testing a "real world" MVC project at different levels.
By Sam Persis on 11/17/2023
The instructor is a capable .NET APP developer and tester. What is missing in this introductory course: 1. Handouts. 2. Guide(s) for the .NET APP:s Unit Testing. Websites, books, and other resources can be recommended for a novice developer/tester. 3. Summary of each chapter. The instructor is not responsive when a question is asked.
By Merna Geyoushi on 8/28/2023
What I liked: - The pace and structure was really great. - The instructor is calm and explains clearly. - Appreciated the last section with real world examples as it brings everything together. Note: - The Main Project files (downloaded from Github) had some issues with the packages as the course material is a bit old. I've upgraded the packages and got it working.
By TJ Maynes on 1/8/2023
This a good course and I'm glad I took it to refresh my understanding and muscle memory for writing NUnit unit tests. This course would have been a 5-star course had there been any integration tests being covered. Integration tests are very important and it should have been covered in this course.
By A. D. on 11/3/2022
This is one of Bhurgen's best courses. It rewards the student that has followed along the journey through Bhurgen's previous courses (particuarly ASP.NET MVC and EF Core). The final section applies NUnit and Moq towards a basic, albeit complete ASP.NET MVC app, across Data Access, Service and Web(Controller) layers. An excellent introduction to NUnit and Moq. Thanks Bhrugen!
By Skip Townsend on 10/24/2022
This is the third course I've taken from Brughen Patel and I'm just as pleased with what I've learned as I was from the first. Easy to understand, thorough, and fun to learn. I recently graduated from a C#/.NET Full Stack boot camp that I paid a ton of money for and they didn't teach me nearly as much as I've learned from these courses. Thank you!
By Angela on 8/3/2022
The instructor's teaching style is really good. I like how he goes through the analysis process of "what can we test in this class?" and for the most part, the code was well-explained. Some of the more complex applications left me with some questions, but overall this course is a great and comprehensive overview of NUnit, with some introductions to MSTest and XUnit as well.
By Junior Matlou on 11/1/2021
I had a basic understanding of Unit testing because i never build unit testing in a real world project. After spending this time on the course, l have started adding unit testing to my real world project. Thank you so very much Bhrugen.
Quality Score
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Overall Score : 90 / 100
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