public void ResourceInheritanceTest()
{
object value;
FrameworkElement root = new FrameworkElement();
root.Resources = new ResourceDictionary();
root.Resources.Add("key1", "value1");
Assert.IsTrue(root.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
FrameworkElement child1 = new FrameworkElement();
root.AddVisualChild(child1);
root.AddLogicalChild(child1);
Assert.IsTrue(child1.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
child1.Resources = new ResourceDictionary();
child1.Resources.Add("key1", "value2");
FrameworkElement child2 = new FrameworkElement();
child1.AddVisualChild(child2);
Assert.IsTrue(child2.TryGetResource("key1", out value));
Assert.AreEqual("value2", value);
root.AddLogicalChild(child2);
Assert.IsTrue(child2.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
}