In my most recent question: Unit Testing Best Practice? / C# InternalsVisibleTo() attribute for VBNET 2.0 while testing?, I was asking about InternalsVisibleToAttribute.

I have read the documentation on how to use it, and everything is fine and understood. However, I can't instantiate my class Groupe from my Testing project.

I want to be able to instantiate my internal class in my wrapper assembly, from my testing assembly.

Any help is appreciated!

EDIT #1

Here's the compile-time error I get when I do try to instantiate my type:

Erreur 2 'Carra.Exemples.Blocs.ActiveDirectory.Groupe' n'est pas accessible dans ce contexte, car il est 'Private'. C:\Open\Projects\Exemples\Src\Carra.Exemples.Blocs.ActiveDirectory\Carra.Exemples.Blocs.ActiveDirectory.Tests\GroupeTests.vb 9 18 Carra.Exemples.Blocs.ActiveDirectory.Tests

(This says that my type is not accessible in this context, because it is private.) But it's Friend (internal)!

EDIT #2

Here's a piece of code as suggested for the Groupe class implementing the Public interface IGroupe:

#Region "Importations"
Imports System.DirectoryServices
Imports System.Runtime.CompilerServices
#End Region

<Assembly: InternalsVisibleTo("Carra.Exemples.Blocs.ActiveDirectory.Tests")> 

Friend Class Groupe
    Implements IGroupe

#Region "Membres privés"
    Private _classe As String = "group"
    Private _domaine As String
    Private _membres As CustomSet(Of IUtilisateur)
    Private _groupeNatif As DirectoryEntry
#End Region

#Region "Constructeurs"
    Friend Sub New()
        _membres = New CustomSet(Of IUtilisateur)()
        _groupeNatif = New DirectoryEntry()
    End Sub

    Friend Sub New(ByVal domaine As String)
        If (String.IsNullOrEmpty(domaine)) Then Throw New ArgumentNullException()
        _domaine = domaine
        _membres = New CustomSet(Of IUtilisateur)()
        _groupeNatif = New DirectoryEntry(domaine)
    End Sub

    Friend Sub New(ByVal groupeNatif As DirectoryEntry)
        _groupeNatif = groupeNatif
        _domaine = _groupeNatif.Path
        _membres = New CustomSet(Of IUtilisateur)()
    End Sub
#End Region

And the code trying to use it:

#Region "Importations"
Imports NUnit.Framework

Imports Carra.Exemples.Blocs.ActiveDirectory.Tests
#End Region

<TestFixture()> _
Public Class GroupeTests
    <Test()> _
    Public Sub CreerDefaut()
        Dim g As Groupe = New Groupe()
        Assert.IsNotNull(g)
        Assert.IsInstanceOf(Groupe, g)
    End Sub
End Class

EDIT #3

Damn! I have just noticed that I wasn't importing the assembly in my importation region.

Nope, didn't solve anything =(

Thanks!