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Learn test driven development in C# with xUnit and Moq. Step-by-step TDD tutorial with real code examples, best practices, and pitfalls. Start testing today! Test driven development in C# is one of the most in-demand skills for .NET developers in 2026 — and for good reason. Teams that practice TDD ship fewer production bugs, refactor with confidence, and produce code that is easier to maintain. Yet many developers still write tests after the code (if at all), missing the real benefit: TDD is a design technique first and a testing technique second . In this tutorial, you'll learn test driven development in C# from the ground up using xUnit (the most popular .NET testing framework) and Moq (the most widely used mocking library). We'll build a real feature — an order processing service — by writing the tests first and the code second, following the classic Red-Green-Refactor cycle. Along the way, we'll cover best practices, common pitfalls, and the reasoning behind e...

Learn microservices architecture in ASP.NET Core — design, build, and deploy scalable .NET microservices with code examples. Start building today. Microservices architecture has become the default answer for teams that need to ship features fast without stepping on each other's toes. Instead of one giant ASP.NET Core application where every deployment is a high-stakes event, you build a set of small, independently deployable services — each owning its own data, its own release cycle, and its own failure boundary. In this guide, you'll learn how to design a microservices architecture in ASP.NET Core, build two communicating services with runnable C# code, and deploy them at scale with Docker and Kubernetes. More importantly, you'll learn why each decision matters, because microservices done wrong are far more painful than a well-organized monolith. What Is Microservices Architecture (and When Should You Use It)? Microservices architecture is an approach to building s...

Learn how to build a multi-cloud strategy for .NET apps across AWS, Azure, and GCP with C# code examples. Start deploying cloud-agnostic apps today. Why a Multi-Cloud Strategy Matters for .NET Developers in 2026 A multi-cloud strategy — running your applications across AWS, Azure, and Google Cloud Platform (GCP) at the same time — has moved from a "nice to have" buzzword to a board-level requirement. Surveys consistently show that over 85% of enterprises now use more than one cloud provider, and .NET teams are right in the middle of that shift. Whether it's regulatory pressure in the UK and EU, avoiding vendor lock-in in the US market, or cost arbitrage between regions in India and Australia, the ability to run the same .NET application on multiple clouds is a genuine competitive advantage. The good news: modern .NET (8, 9, and 10) is arguably the best-positioned enterprise stack for multi-cloud. It's cross-platform, container-first, and has first-class SDKs ...

Master C# code review best practices with a practical checklist, real code examples, and tips to catch bugs early. Level up your .NET team today. Code review best practices separate high-performing C# teams from teams that ship bugs on Friday afternoons. A good pull request review catches defects before they reach production, spreads knowledge across the team, and keeps a codebase consistent as it grows. A bad one is a rubber stamp — or worse, a week-long argument about brace placement while a null reference bug sails through untouched. In this guide, you'll learn how to do a code review that actually improves .NET code quality: what to look for in C# specifically, how to structure your review process, a practical C# code review checklist, and the common pitfalls that quietly kill team velocity. Whether you're a junior developer reviewing your first pull request or a tech lead standardizing the process for a whole team, these practices apply. Why Code Review Best Practi...

Learn when to use records vs classes vs structs in C# with practical examples, performance tips, and best practices. Master C# types in 2026 — read now. If you've ever paused before typing class , record , or struct and wondered which one you actually need, you're not alone. The C# record vs class question is one of the most searched C# topics on Google — and for good reason. Since records arrived in C# 9 and record structs in C# 10, the language now gives you five distinct ways to declare a type: class , record class , struct , record struct , and readonly record struct . Each has different semantics for equality, copying, memory allocation, and mutability — and choosing the wrong one leads to subtle bugs, wasted allocations, or code that fights the language instead of flowing with it. In this tutorial, we'll break down exactly how records, classes, and structs differ in modern .NET (as of .NET 10 in 2026), show runnable code examples for each, and give you a simp...

Master LINQ in C# with this hands-on C# LINQ tutorial. 10 practical examples covering Where, Select, GroupBy, joins & more. Start coding smarter today! If you write C# for a living, LINQ (Language Integrated Query) is one of the highest-leverage skills you can master. This C# LINQ tutorial walks you through 10 practical, runnable examples that cover the operations you will actually use every day — filtering, projecting, grouping, joining, and aggregating data — along with the reasoning behind each one. Whether you are querying an in-memory list, a SQL database via Entity Framework Core, or a JSON API response, the same LINQ vocabulary applies. By the end of this article you will not just know how to write LINQ queries in C#, but why they behave the way they do — including the deferred execution gotchas that trip up even senior developers. What Is LINQ in C# and Why Should You Use It? LINQ is a set of query operators built into the .NET Base Class Library (in the System.Li...