为库的内部类编写UnitTests

Question

I have the below class in the library i have to write UnitTests for and was given by my dev team to write unit tests for it.

internal sealed class Settings : AppSettingsBase
{
    private static Settings defaultInstance = ((Settings)(Synchronized(new Settings())));

    public static Settings Default { get { return defaultInstance; } }
}

Since its internal i couldn't access it in my .Tests project. When i looked in the stackoverflow the suggestion was to ask the developer to put an attribute [assembly:InternalsVisibleTo("MyTests")] in the AssemblyInfo.cs file. This is what i am going to request my developer but its going to take some time.

Is there a way to do it through any reflection concept or any other concept to read those properties or variables. I am using Microsoft FAkes in my test project.

Answer 1

The purpose of unit tests is to test publicly accessible aspects of the code. As it's internal, it shouldn't be directly unit tested. Test the public functionality that uses this class instead.

If you must test it, then the solution is indeed to add [assembly:InternalsVisibleTo("MyTests")] to the assembly. This doesn't take long. It simply requires a quick edit to the AssemblyInfo.cs file.