public void GetEnumerator()
{
using (var enumerator = _adapter.GetEnumerator())
{
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo("1"));
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo("2"));
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo("3"));
Assert.That(enumerator.MoveNext(), Is.False);
}
}