public void Enum()
{
var storage = new XmlStorage(_driver, _index);
Assert.DoesNotThrow(() => storage.Enum());
Assert.IsEmpty(storage.Enum());
_index.Items.Returns(new[] { new StorageItem()
{
Url = "test1"
}, new StorageItem()
{
Url = "test2"
} });
Assert.IsNotEmpty(storage.Enum());
}