Public MustOverride Function CompareTo( _
   ByVal other As T _
) As Integer

public abstract int CompareTo( 
   T other
)

using (PasswordHash pwd1 = new PasswordHash(TEST_PASSWORD))
using (PasswordHash pwd2 = new PasswordHash(TEST_PASSWORD, pwd1.Salt))
{
    Assert.AreEqual(pwd1, pwd2);
    Assert.AreEqual(pwd1.Salt.ToArray(), pwd2.Salt.ToArray());
    Assert.AreEqual(pwd1.ToArray(), pwd2.ToArray());

    Assert.IsTrue(pwd1 == pwd2);
    Assert.IsTrue(pwd1 == pwd2);
    Assert.IsFalse(pwd1 != pwd2);
    Assert.IsTrue(pwd1.Equals(pwd2));
    Assert.IsTrue(pwd1.Equals((object)pwd2));
    Assert.AreEqual(0, pwd1.CompareTo(pwd2));
    Assert.AreEqual(pwd1.GetHashCode(), pwd2.GetHashCode());
    Assert.AreEqual(pwd1.ToString(), pwd2.ToString());

    PasswordHash nil = null;
    Assert.IsFalse(pwd1 < nil);
    Assert.IsTrue(pwd1 > nil);
    Assert.AreEqual(1, pwd1.CompareTo(null));
}

Using pwd1 As New PasswordHash(TEST_PASSWORD)
    Using pwd2 As New PasswordHash(TEST_PASSWORD, pwd1.Salt)
        Assert.AreEqual(pwd1, pwd2)
        Assert.AreEqual(pwd1.Salt.ToArray(), pwd2.Salt.ToArray())
        Assert.AreEqual(pwd1.ToArray(), pwd2.ToArray())

        Assert.IsTrue(pwd1 = pwd2)
        Assert.IsTrue(pwd1 = pwd2)
        Assert.IsFalse(pwd1 <> pwd2)
        Assert.IsTrue(pwd1.Equals(pwd2))
        Assert.IsTrue(pwd1.Equals(DirectCast(pwd2, Object)))
        Assert.AreEqual(0, pwd1.CompareTo(pwd2))
        Assert.AreEqual(pwd1.GetHashCode(), pwd2.GetHashCode())
        Assert.AreEqual(pwd1.ToString(), pwd2.ToString())

        Dim nil As PasswordHash = Nothing
        Assert.IsFalse(pwd1 < nil)
        Assert.IsTrue(pwd1 > nil)
        Assert.AreEqual(1, pwd1.CompareTo(Nothing))
    End Using
End Using