public void Test()
{
string fieldName = "field";
string fieldInitialValue = "value";
string changedValue = "othervalue";
XrmFakedContext context = new XrmFakedContext();
IOrganizationService service = context.GetOrganizationService();
EmptyHandler handler = new EmptyHandler();
Entity initialEntity = new Entity("entity", Guid.NewGuid())
{
[fieldName] = fieldInitialValue
};
context.Initialize(initialEntity);
initialEntity[fieldName] = changedValue;
handler.Execute(initialEntity, service);
Entity post = service.Retrieve(initialEntity.LogicalName, initialEntity.Id, new ColumnSet(fieldName));
Assert.AreEqual(fieldInitialValue, post[fieldName]);
}
