Master Unit Testing in C# with xUnit: The Complete Guide

Name: Master Unit Testing in C# with xUnit: The Complete Guide
Rating: 3.7 (3 reviews)

Build Production-Ready Web APIs with Confidence Using Professional Unit Testing Techniques and Best Practices

Created byNitish Kumar - Microsoft MVP

Last updated 5/2026

English

What you'll learn

Write professional XUnit tests for ASP.NET Core Web APIs from scratch
Test ASP.NET Core APIs, controllers, and services with real-world examples (not toy projects)
Debug failing tests efficiently and understand test failure patterns before they hit production
Ship code on Fridays without fear - deploy with confidence knowing your tests have your back

Course content

4 sections • 23 lectures • 2h 8m total length

xUnit Testing in C# Asp.Net Core - Complete ASP.NET Core Guide2:11
Master the Web API We're Testing: Your Unit Testing Foundation in C# with xUnit5:52
Build Your First xUnit Test Project: Professional Setup and Structure8:15
Quick Setup: Create xUnit Projects Like a Pro Using dotnet CLI5:02
Writing Your First xUnit Test Case: Learn to Run, Fail, and Fix Tests Like a Pro14:42
Debugging xUnit Tests with Breakpoints: Troubleshoot Failing Tests EffectivelyDe6:28
Running Specific xUnit Tests with dotnet CLI Filters: Master Test Execution7:34
xUnit Fundamentals Mastery

Boolean Assertions in xUnit: Verifying True and False Conditions7:23
Learn how to use xUnit’s boolean assertions to validate true and false conditions in your tests. This video demonstrates when and how to apply Assert.True() and Assert.False() to ensure correct logical behavior.
Equality Assertions in xUnit: Equal vs. Strict Comparison5:43
Understand the difference between value equality and strict comparison in xUnit. This lesson shows how to use Assert.Equal() and strict checks to validate results accurately and avoid false positives in your tests.
Object Identity: Assert.Same vs. Assert.Equal3:46
Learn the difference between object identity and value equality in xUnit. This video explains when to use Assert.Same() to verify references and Assert.Equal() to compare object values correctly in your tests.
Handling Null Values in xUnit: Assert.Null() and Assert.NotNull()2:22
Learn to verify null and non-null values using xUnit assertions to prevent unexpected null reference issues in your tests.
String Assertions in xUnit: Validating Text, Contains, and Patterns2:50
Discover how to test strings for equality, substrings, and patterns to ensure text outputs match expected results.
Collection Assertions in xUnit: Testing Lists, Arrays, and Sequences4:40
Learn how to validate collections, check counts, and verify elements to ensure data sequences behave as expected.
Skipping Tests in xUnit: Using Skip for Conditional Execution3:21
Understand how to skip tests when conditions are unmet, helping manage environment-specific or temporary test scenarios.

Requirements

Basic knowledge of C# programming (variables, methods, classes, interfaces)
Basic ASP.NET Core experience - built a simple API or followed a tutorial
Visual Studio, Rider, or VS Code installed (all free options covered)
Willingness to write better code and stop breaking production
Zero testing experience needed - perfect for complete beginners

Description

Master Unit Testing in C# and Build Bulletproof Web APIs with xUnit

Unit testing is no longer optional—it's a critical skill every professional C# developer must have. Whether you're building Web APIs for startups or enterprise applications, employers demand developers who can write tested, reliable, maintainable code.

This comprehensive course takes you from complete beginner to confident xUnit expert through hands-on, practical training.

What You'll Learn:

xUnit fundamentals - Master facts, theories, assertions, and the complete testing framework
Test real Web APIs - Apply unit testing to actual C# projects with real-world scenarios
Mocking and dependencies - Handle databases, external APIs, and complex testing situations
Best practices - Write clean, maintainable tests following industry standards
Test-driven development - Build better code by writing tests first
Async testing - Test asynchronous code confidently
Code coverage - Understand what to test and measure your testing effectiveness

Why This Course?

Project-based learning - Build and test a complete Web API from scratch
Industry-ready skills - Techniques used in real software companies
Beginner-friendly - No prior testing experience required
Lifetime access - Learn at your own pace with permanent access to all materials

Who This Is For:

C# developers wanting to add professional testing skills, .NET developers preparing for interviews, and anyone building Web APIs who values code quality.

Enroll now and transform your development career with professional unit testing skills!

Who this course is for:

ASP.NET Core developers who've been avoiding unit testing and now need to learn it properly
Developers preparing for .NET job interviews where testing questions are always asked
Self-taught programmers who skipped testing fundamentals and now regret it
Backend developers tired of breaking production and want to deploy without fear

Master Unit Testing in C# with xUnit: The Complete Guide

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Course content

Launch Your xUnit Testing Journey: From Zero to Professional Test Execution7 lectures • 50min

Master Data-Driven Testing: Write Smarter Parameterized Tests in xUnit4 lectures • 24min

Professional Test Organization: Configuration and Best Practices for xUnit5 lectures • 25min

Mastering Assert Classes in xUnit for ASP.NET Core Testing7 lectures • 30min

Requirements

Description

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