When I started my career in software development 22 years ago this year, it seemed that unit testing adoption was rather patchy. Whether you wrote unit tests or not, depended upon the environment you worked in. So most developers only used to write unit tests if they worked on a project which mandated unit testing, […]
Previous Versions Previously in C#, references have been allowed to be null and they could be de-referenced without null checks. We would then get a NullReferenceException, this happens when we dereference a variable which is set to null. Sometimes we have nulls coming from other parts of the code, which we then discover later when […]
In this article I discuss read-only automatic properties. I am going to cover how automatic properties have changed over the releases of C# and along the way show how much more concise the code becomes. Automatic Properties Ever since C# 3.0 came out we had the ability to define automatic properties. Gone were the days […]
For years we have all used string.Format, it was one of those constructs that I thought “oh wow”, when I first started using the .Net Framework back in 2004. One of my colleagues at the time remarked “Its sweet, isn’t it?”, I guess we were easily amused back then? In C# 6 we saw the […]
The nameof operator was introduced in C# 6. But before I discuss what the nameof operator is for, I would like to show what life was like before the nameof operator. Life before the nameof operator So back in C# 2, we might have the following code in our constructor: We would have used magic […]
We first saw expression bodied members introduced in C# 6. This introduced the ability to take a single expression method and read-only property and reduce it to a more concise form. Functions For example a single line function can be reduced from this: To the following code below: Read-only Properties A read-only property can be […]
In the .Net Framework, the approach to unit testing internal methods or types was to add an InternalsVisibleTo attribute into the AssemblyInfo.cs file. For example look at the following line of code below: This all works fine in the .net Framework. However in .Net Core most of the settings in the AssemblyInfo file have moved […]
Use the following PowerShell command to find out what versions of .net core are installed on your machine: dotnet –list-sdks