public void ExtensionObject()
{
ExtensionObject extensionObject_null = null;
// Validate the default constructor
ExtensionObject extensionObject_Default = new Ua.ExtensionObject();
Assert.NotNull(extensionObject_Default);
Assert.AreEqual(ExpandedNodeId.Null, extensionObject_Default.TypeId);
Assert.AreEqual(ExtensionObjectEncoding.None, extensionObject_Default.Encoding);
Assert.Null(extensionObject_Default.Body);
// Constructor by ExtensionObject
ExtensionObject extensionObject = new ExtensionObject(ExpandedNodeId.Null);
Assert.NotNull(extensionObject);
Assert.AreEqual(ExpandedNodeId.Null, extensionObject.TypeId);
Assert.AreEqual(ExtensionObjectEncoding.None, extensionObject.Encoding);
Assert.Null(extensionObject.Body);
// static extensions
Assert.True(Ua.ExtensionObject.IsNull(extensionObject));
Assert.Null(Ua.ExtensionObject.ToEncodeable(null));
Assert.Null(Ua.ExtensionObject.ToArray(null, typeof(object)));
Assert.Null(Ua.ExtensionObject.ToList <object>(null));
// constructor by ExpandedNodeId
extensionObject = new ExtensionObject((ExpandedNodeId)null);
Assert.AreEqual(0, extensionObject.GetHashCode());
Assert.Throws <ArgumentNullException>(() => new ExtensionObject(extensionObject_null));
Assert.Throws <ServiceResultException>(() => new ExtensionObject(new object()));
// constructor by object
object byteArray = new byte[] { 1, 2, 3 };
extensionObject = new ExtensionObject(byteArray);
Assert.NotNull(extensionObject);
Assert.AreEqual(extensionObject, extensionObject);
// string extension
var extensionObjectString = extensionObject.ToString();
Assert.Throws <FormatException>(() => extensionObject.ToString("123", null));
Assert.NotNull(extensionObjectString);
// clone
var clonedExtensionObject = (ExtensionObject)Utils.Clone(extensionObject);
Assert.AreEqual(extensionObject, clonedExtensionObject);
// IsEqual operator
clonedExtensionObject.TypeId = new ExpandedNodeId(333);
Assert.AreNotEqual(extensionObject, clonedExtensionObject);
Assert.AreNotEqual(extensionObject, extensionObject_Default);
Assert.AreNotEqual(extensionObject, new object());
Assert.AreEqual(clonedExtensionObject, clonedExtensionObject);
Assert.AreEqual(ExpandedNodeId.Null, extensionObject.TypeId);
Assert.AreEqual(ExpandedNodeId.Null.GetHashCode(), extensionObject.TypeId.GetHashCode());
Assert.AreEqual(ExtensionObjectEncoding.Binary, extensionObject.Encoding);
Assert.AreEqual(byteArray, extensionObject.Body);
Assert.AreEqual(byteArray.GetHashCode(), extensionObject.Body.GetHashCode());
// collection
ExtensionObjectCollection collection = new ExtensionObjectCollection();
Assert.NotNull(collection);
collection = new ExtensionObjectCollection(100);
Assert.NotNull(collection);
collection = new ExtensionObjectCollection(collection);
Assert.NotNull(collection);
collection = (ExtensionObjectCollection)collection.MemberwiseClone();
// default value is null
Assert.Null(TypeInfo.GetDefaultValue(BuiltInType.ExtensionObject));
}