Book Image

Improving your C# Skills

By : Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens
Book Image

Improving your C# Skills

By: Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens

Overview of this book

This Learning Path shows you how to create high performing applications and solve programming challenges using a wide range of C# features. You’ll begin by learning how to identify the bottlenecks in writing programs, highlight common performance pitfalls, and apply strategies to detect and resolve these issues early. You'll also study the importance of micro-services architecture for building fast applications and implementing resiliency and security in .NET Core. Then, you'll study the importance of defining and testing boundaries, abstracting away third-party code, and working with different types of test double, such as spies, mocks, and fakes. In addition to describing programming trade-offs, this Learning Path will also help you build a useful toolkit of techniques, including value caching, statistical analysis, and geometric algorithms. This Learning Path includes content from the following Packt products: • C# 7 and .NET Core 2.0 High Performance by Ovais Mehboob Ahmed Khan • Practical Test-Driven Development using C# 7 by John Callaway, Clayton Hunt • The Modern C# Challenge by Rod Stephens
Table of Contents (26 chapters)
Title Page
Copyright and Credits
About Packt
What to Know Before Getting Started
Files and Directories
Advanced C# and .NET Features

An approach to TDD 

TDD is also referred to as Test First Development. In both names, the key aspect is that the test must be written before the application code. Robert C. Martin, affectionately called "Uncle Bob" by the developer community, has created The Three Laws of TDD. They are as follows: 

  1. You are not allowed to write any production code unless it is to make a failing unit test pass
  2. You are not allowed to write any more of a unit test than is sufficient to fail, and compilation failures are failures
  3. You are not allowed to write any more production code than is sufficient to pass the one failing unit test

You can learn more about these laws at 

By following these rules, you will ensure that you have a very tight feedback loop between your test code and your production code. One of the main components of Agile software development is working to reduce the feedback cycle. A small feedback cycle allows the project to make a course...