In .NET Standard projects, there is an AssemblyInfo class built-in, so you no longer need a separate AssemblyInfo.cs file in your project Properties.
But what if you want to use the InternalsVisibleToAttribute? This was one of the attributes I used a lot to expose the internals of my Assembly to my test projects.
Turns out that it doesn’t matter really where you put this attribute. It is applied at the assembly level, so you can include in any source code file you like. Using the AssemblyInfo file was just a convenience.
So what I did, was creating an empty .cs file and add the following code: