<t>Internal classes need to be tested and there is an assembly attribute:<br/>
<br/>
using System.Runtime.CompilerServices;<br/>
<br/>
[assembly:InternalsVisibleTo("MyTests")]<br/>
<br/>
```<br/>
<br/>
Add this to the project info file, e.g. `Properties\AssemblyInfo.cs`, for the project under test. In this case "MyTests" is the test project.</t>