When to use mocks

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this week's favorite

When to use mocks

The main issue with the use of mocks is that they encourage focusing on collaborations. That, in turn, often leads to coupling your tests to implementation details as those collaborations are usually not part of the SUT’s public API.

Writing Honest Methods in C#

This C# tutorial describes approaches for making methods/functions more honest. A more honest method makes it easier for readers to understand what the method does by reading its signature, i.e., without reading its implementation.

Exploring .NET Core platform intrinsics: Part 4 - Alignment and pipelining

You’ve implemented some of your performance critical code using the new platform intrinsics API. The code is now running 10x or even 100x faster than before, and you might think that it can’t get any faster. This post will show you some less obvious (but almost universally applicable) techniques for improving the performance even further.

Learn Span by Implementing a high-performance CSV Parser

Ever since I first heard about Span, I’ve been wanting play around with using it. It’s a ref struct, so the semantics of using this type and the restrictions that go along with it are best understood by actually trying to use it. So I decided to build a simple CSV parser and see how the performance compared to other mainstream CSV parsers.

C# 8 Ranges and Recursive Patterns

Jan 21, 2015 is one of the most important days in the C# modern history. On this day, the C# Gurus like Anders Hejlsberg and Mads Torgersen and others have discussed the future of C# and considered in which directions the language should be expanded.