public void Navigate()
{
var source = new TestSource1();
var nav = new NavigableNavigator(source);
nav.MoveToRoot();
Assert.AreEqual("", nav.Name); // because we're at root
nav.MoveToFirstChild();
Assert.AreEqual("root", nav.Name);
nav.MoveToFirstChild();
Assert.AreEqual("type1", nav.Name); // our first content
nav.MoveToFirstAttribute();
Assert.AreEqual("id", nav.Name);
Assert.AreEqual("1", nav.Value);
nav.MoveToNextAttribute();
Assert.AreEqual("prop1", nav.Name);
Assert.AreEqual("1:p1", nav.Value);
nav.MoveToNextAttribute();
Assert.AreEqual("prop2", nav.Name);
Assert.AreEqual("1:p2", nav.Value);
Assert.IsFalse(nav.MoveToNextAttribute());
nav.MoveToParent();
nav.MoveToFirstChild();
Assert.AreEqual("prop3", nav.Name);
Assert.AreEqual("1:p3", nav.Value);
Assert.IsFalse(nav.MoveToNext());
}