Prettify.cs

public static string Prettify(this Type type)
{
	var provider = new Microsoft.CSharp.CSharpCodeProvider();
	return provider.GetTypeOutput(new System.CodeDom.CodeTypeReference(type));
}

public class TypeExtensionsTester : TestBase
{
    [Test]
    public void Should_format_generic_type()
    {
        const string expected = "SomeApp.Reporting.UnitTests.Core.Domain.SomeType<SomeApp.Reporting.UnitTests.Core.Domain.Plug>";
        typeof (SomeType<Plug>).Prettify().ShouldEqual(expected);
    }

    [Test]
    public void Should_format_type()
    {
        const string expected = "SomeApp.Reporting.UnitTests.Core.Domain.SomeType";
        typeof (SomeType).Prettify().ShouldEqual(expected);
    }
}

public class SomeType {}

public class Plug {}

public class SomeType<T> {}