public void Copy()
{
using (var k = new NSString("key"))
using (var v = new NSString("value"))
using (var d = new NSDictionary <NSString, NSString> (k, v)) {
// NSObject.Copy works because NSDictionary conforms to NSCopying
// note: we do not Dispose the "copies" because it's the same instance being returned
var copy1 = (NSDictionary)d.Copy();
Assert.AreSame(d, copy1, "1");
Assert.That(copy1, Is.Not.TypeOf <NSMutableDictionary> (), "NSDictionary-1");
Assert.That(copy1.Count, Is.EqualTo((nuint)1), "Count-1");
var copy2 = (NSDictionary)d.Copy(null);
Assert.AreSame(d, copy2, "2");
Assert.That(copy2, Is.Not.TypeOf <NSMutableDictionary> (), "NSDictionary-2");
Assert.That(copy2.Count, Is.EqualTo((nuint)1), "Count-2");
var copy3 = (NSDictionary)d.Copy(NSZone.Default);
Assert.AreSame(d, copy3, "3");
Assert.That(copy3, Is.Not.TypeOf <NSMutableDictionary> (), "NSDictionary-3");
Assert.That(copy3.Count, Is.EqualTo((nuint)1), "Count-3");
}
}