public void TestCollectionAddRemove()
{
var path = Path.Combine("..", "..", "TestData", "smime", "certificate-authority.crt");
var recipients = new CmsRecipientCollection();
var recipient = new CmsRecipient(path);
var array = new CmsRecipient[1];
Assert.IsFalse(recipients.Contains(recipient), "Contains: False");
Assert.IsFalse(recipients.Remove(recipient), "Remove: False");
recipients.Add(recipient);
Assert.AreEqual(1, recipients.Count, "Count");
Assert.IsTrue(recipients.Contains(recipient), "Contains: True");
recipients.CopyTo(array, 0);
Assert.AreEqual(recipient, array[0], "CopyTo");
Assert.IsTrue(recipients.Remove(recipient), "Remove: True");
Assert.AreEqual(0, recipients.Count, "Count");
recipients.Clear();
}