public void TestEnumerators()
{
IApiKeyService service = GetService();
IEnumerator <KeyValuePair <string, string> > typedEnumerator
= service.GetEnumerator();
IEnumerator enumerator = ((IEnumerable)service).GetEnumerator();
typedEnumerator.MoveNext();
enumerator.MoveNext();
Assert.Equal(_secretKey,
(typedEnumerator.Current).Value);
Assert.Equal(_secretKey,
((KeyValuePair <string, string>)enumerator.Current).Value);
}