Unit Testing in .NET and C# with NUnit 4.x and MOQ

Name: Unit Testing in .NET and C# with NUnit 4.x and MOQ
Rating: 4.4 (36 reviews)

NUnit in .NET and C#. Test-Driven Development. Testing Legacy Code + Interview Questions & Answers

Created byAref Karimi

Last updated 11/2025

English

English [Auto],

What you'll learn

Unit Testing Concepts and Fundamentals
Writing and Executing Tests with NUnit
Mocking and Mocking Frameworks (MOQ)
Test Driven Development (TDD)
Techniques of Testing Legacy (old) Code

Course content

9 sections • 26 lectures • 2h 52m total length

Introduction1:23
An introduction to the course and what you will learn in this course.
What is Unit Testing ?2:38
What is unit testing? What types of unit testing exist?
What is NUnit?2:08
Explore how NUnit is an automated unit testing framework for dotnet versions, including legacy net framework, net core, and dotnet seven and eight, with class libraries from NuGet and runners.

Simple Asserts8:57
Handling Exceptions4:38
Explore clear test naming and exception verification for a word processor print method, using NUnit to assert no exception and to assert the not implemented exception.
Working with Types (IsInstanceOf and IsAssingableFrom methods)7:30
The StringAssert Class9:33
Show how to use the StringAssert class to test the make full name function, prefixing with Mr. or Ms. by gender, using startswith and endswith.
The CollectionAssert Class6:05
Asserting with Constraints13:30

TestFixture - Advanced14:02
Setup and TearDown5:34
Apply the setup attribute to run before every test method and initialize values. Learn that one time setup runs once per test class and tear down runs after tests.
The TestCase Attribute - Passing values to parametrised test methods.8:28
Grouping Asserts Together4:48
Group multiple asserts with Assert.Multiple by passing an action that contains the asserts, so execution continues through the block and ends only when the group fails, as a single unit.

The Common Technique of Testing a Legacy (Old) Code1:58
We don't always get to write unit tests with NUnit for our own code. Often we find a code that was written long ago by someone else. You may ask, why would you write unit tests for an old code?
The answer is that we don't write unit tests to see if a piece of code or a function works as expected. We also write unit tests to make sure our new changes have not broken the old or existing code. That is why it is highly recommended that to write unit tests for legacy code before you begin to modify it.
In this lecture you will learn about a technique called Sprout Method. Using this technique you can write a unit test for a piece of code tha you add to a legacy code to make sure everything works as expected.
Testing a Legacy Code in Action11:47

Requirements

Description

If you're a .NET developer looking to improve the quality and reliability of your code, then this online course on Unit Testing in .NET and C# with NUnit and MOQ is perfect for you!

In this comprehensive course, you'll learn everything you need about NUnit and its usage in the latest version of .NET.

With C#, including how to write practical unit tests using the NUnit and MOQ frameworks. You'll also learn about Test Driven Development (TDD) and how to apply it to your projects.

But that's not all—we'll also cover unit testing legacy code, a crucial skill for any developer who wants to maintain and improve existing codebases. To ensure you're fully prepared for any job interviews, we've included interview questions and answers related to unit testing and NUnit.

Our expert instructor will guide you through the course, providing clear explanations and hands-on examples to help you master the material. By the end of the period, you'll deeply understand NUnit and unit testing and the skills and knowledge needed to apply these techniques to your projects confidently.

This course is perfect for anyone who wants to take their .NET development skills to the next level. Whether you're a beginner looking to learn the basics of unit testing or an experienced developer looking to improve your skills, this course has everything you need to succeed.

So don't wait - enroll now and start mastering unit testing with NUnit today!

Who this course is for:

.NET Developers
Test Engineers

Unit Testing in .NET and C# with NUnit 4.x and MOQ

What you'll learn

Explore related topics

Course content

Introduction3 lectures • 6min

Writing Tests3 lectures • 14min

Asserts6 lectures • 50min

Advanced Topics4 lectures • 33min

Mocking Technique and MOQ Framework5 lectures • 38min

Test-Driven Development or TDD2 lectures • 13min

Testing the Legcy Code2 lectures • 14min

Interview Questions0

Bonus Lectures1 lecture • 4min

Requirements

Description

Who this course is for: