public void DefaultInvariant ()
{
CaseInsensitiveHashCodeProvider cih = new CaseInsensitiveHashCodeProvider (
CultureInfo.InvariantCulture);
int h1 = cih.GetHashCode ("Test String");
cih = CaseInsensitiveHashCodeProvider.DefaultInvariant;
int h2 = cih.GetHashCode ("Test String");
Assert.AreEqual (h1, h2, "#1");
CaseInsensitiveHashCodeProvider cih1 = CaseInsensitiveHashCodeProvider.DefaultInvariant;
CaseInsensitiveHashCodeProvider cih2 = CaseInsensitiveHashCodeProvider.DefaultInvariant;
Assert.IsTrue (object.ReferenceEquals (cih1, cih2));
}