Learn Unit Testing with NUnit and C#
Learn deeply the concepts and tools that you will need to build maintainable and reliable software.
No fluff, no ranting, no beating the air. I esteem your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth. For absolute beginners, I offer my help on Skype absolutely free, if requested.
Take this course, and you will be satisfied.
Build a solid foundation in Unit Testing with this course
This course is all about writing effective unit tests using C# programming language and NUnit 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 including all the most important topics such as mocking and test driven development (TDD in short). This course does not cover all the features of NUnit. This course is way more interesting.
Learning unit testing puts a powerful and very useful tool at your fingertips. Being familiar with unit testing you can write reliable and maintainable applications. It is very hard to lead a project which is not covered by unit tests.
Content and Overview
This course is primarily aimed at beginner developers. It provides solid theoretical base reinforced by tons of practical material.
We start with basics of unit testing. What is a unit test? What unit testing frameworks exist? How to run and debug unit tests. After getting acquainted with the basics, we will get to the NUnit framework. Here you’ll learn how to install the framework, set the runner. Then you’ll learn the basics of assertions and arrange-act-assert triplet. Other key features of NUnit are also covered:
Running tests from the console
Setup and teardown unit tests
Grouping and ignoring
Practicing writing of unit tests, it’s impossible to avoid applying mocks. I like the word “test double” more, in general. By the way, you’ll learn what the difference between the following notion is:
You’ll learn how to write test doubles manually. You will also see a simple example of how to use a mocking framework for using mocks. I’ll use NSubstitute mocking framework for demonstration.
At the end of this section, you’ll get acquainted with two key approaches to unit testing, Classic or Detroit School and London School of unit testing.
You’ll separately learn the basic of test-driven development. It is hard to imagine a modern professional developer who doesn’t know about TDD, so you’ll learn what it is and what it is about. You’ll see the Red-Green-Refactor triplet in action.
I could not complete the course avoiding the best practices of writing unit tests. You’ll learn the basic concepts of the modern approach to unit testing called “pragmatic unit testing”. You’ll see what problems static classes and singletons bring regarding the unit testing. They make code harder to unit test. After that, you’ll learn the problem of extracting interfaces just for the sake of introducing shims for injecting dependencies.
You’ll know should you write unit tests for the trivial code. You’ll learn a lot more in the course.
So, in short, the course covers the following topics:
Basic notions of Unit Testing
NUnit and its features
Test Doubles including fakes, dummies, stubs, spies and mocks
How to write manual test doubles and how to use a mocking framework (NSubstitute)
TDD, red-green-refactor triplet
A great number of best practices of writing unit tests
Introduction to Dependency Injection
In the end, we will recap what you have learned, and you will try to understand where you have to go further with the intention to master your skills.
How long is this course: The course is around 7.5 hours. All are video lectures. You will be able to download all the slides and code samples used in the course.
Keywords related to the course:
Visual Studio unit testing tutorial
NUnit unit testing tutorial
Dot Net testing framework
C# unit test framework
Visual Studio unit testing framework tutorial
csharp unit testing tutorial
TDD in C#
Test Driven Development
unit testing C#
The outline of the first section on the essentials of Unit Testing in .NET.
Learn what is a unit test in essence.
Learn what is a unit testing framework, which frameworks exist and is it so important to stick with a specific one?
Write your first unit test in Visual Studio in C# and NUnit unit testing framework.
Learn what naming conventions regarding unit test classes, unit tests and unit testing projects exist.
Learn how to run and debug unit tests in Visual Studio.
Learn what benefits do unit tests provide.
In this lecture, we will answer the question about who should write unit tests? Programmers or maybe testers?
Learn the Oath of Programmers.
The conclusion of the first section on essentials of unit testing.
The outline of the second section on basics on NUnit unit testing framework.
Learn the basics of Assertions in unit tests.
Learn how to write assertions with NUnit on practice.
Learn the Arrange-Act-Assert triplet.
Learn how to run unit tests from the Console.
Learn how to use special attributes of NUnit: SetUp and TearDown.
Learn how to use special attributes of NUnit: OneTimeSetUp and OneTimeTearDown.
Learn how to write parameterized unit tests with NUnit.
Learn how to group and ignore unit tests with NUnit.
Learn what is Code Coverage in unit testing.
The conclusion of the second section on the essentials of the NUnit unit testing framework.
The outline of the third section on essentials of test doubles in unit testing.
Demonstration of a case when it's hard to unit test the logic.
Demo of how to refactor bad code to make it testable.
Learn the different types of test doubles such as mock, stub, spy, fake, dummy,
Learn how to write test doubles manually, without using any mocking framework.
Learn the problems related to writing manual test doubles.
Learn what is a mocking framework, which exist and which one to pick.
Learn how to write a unit test with test doubles powered by a mocking framework.
Learn the main features of NSubstitute mocking framework.
Learn the difference between Detroit School and London School of Unit Testing.
The conclusion of the third section on the essentials of mocking frameworks.
The outline of the fourth section on essentials of Test-Driven Development.
Learn what is TDD.
Learn RedGreenRefactoring process of TDD.
Learn what is the difference between Design Upfront and TDD.
The demonstration of TDD on the example of programming a simple console game.
Best Practices of Unit Testing
Outline of the fifth section on best practices of unit testing.
In this lecture we will answer the question "Do Unit Tests Guarantee the Success?"
Learn what is pragmatic unit testing.
Learn what are integration tests.
Learn what is a singleton design pattern and how it damages the ability to write unit tests.
Learn about the smell of header interfaces. They very often appear when we introduce them just for the sake of writing mocks.
Demo of a refactoring of untestable code to the state when it is testable (when we can write unit tests).
Learn how much test coverage is enough.
Do we need to write unit tests for trivial code?
Learn what really means the rule of a Single Concern in a single unit test.
Learn more about general best practices of writing unit tests.
Learn how to easily generate signatures of unit test methods.
Conclusion of the fifth section on the best practices of writing unit tests.