private static void AttrTest(Attr attr, IResource resource, params string[] expected)
{
var selector = new AttrSelector(attr);
var actual = selector.Select(resource).Select(r => r.AsString());
Assert.Equal(expected, actual);
}
public void SelectElementWorks()
{
var selector = new AttrSelector(Attr.Element);
var actual = selector.Select(validResource);
Assert.Single(actual);
var first = actual.First();
Assert.IsAssignableFrom <IElement>(first.AsObject());
}