public void GetEnumerator_NoValues_EmptyEnumerator()
{
MockHeaders headers = new MockHeaders(knownHeader, new MockHeaderParser(typeof(Uri)));
HttpHeaderValueCollection<Uri> collection = new HttpHeaderValueCollection<Uri>(knownHeader, headers);
IEnumerator<Uri> enumerator = collection.GetEnumerator();
Assert.False(enumerator.MoveNext(), "No items expected in enumerator.");
}