public void FindTypeNodeInHierarchy()
{
ConfigurationApplicationFile applicationData = ConfigurationApplicationFile.FromCurrentAppDomain();
ConfigurationApplicationNode applicationNode = new ConfigurationApplicationNode(applicationData);
IConfigurationUIHierarchy hierarchy = new ConfigurationUIHierarchy(applicationNode, ServiceBuilder.Build());
MyConfigNode configNode = new MyConfigNode("MyBlock");
applicationNode.AddNode(configNode);
ConfigurationNode node = (ConfigurationNode)hierarchy.FindNodeByType(typeof(MyConfigNode));
Assert.IsNotNull(node);
Assert.AreSame(configNode, node);
}