public void CreateExternalFunction()
{
var funName = ObjectName.Parse("APP.fun1");
var parameters = new RoutineParameter[] {
new RoutineParameter("a", PrimitiveTypes.Integer()),
new RoutineParameter("b", PrimitiveTypes.Integer()),
};
var externRef = ExternalRef.MakeRef(typeof(Test), "Function(int, int)");
AdminQuery.CreateExternFunction(funName, PrimitiveTypes.Integer(), parameters, externRef.ToString());
var exists = AdminQuery.Access().RoutineExists(funName);
Assert.IsTrue(exists);
var function = AdminQuery.Access().GetObject(DbObjectType.Routine, funName);
Assert.IsNotNull(function);
Assert.IsInstanceOf <ExternalFunction>(function);
var externFunction = (ExternalFunction)function;
Assert.IsNotNull(externFunction.ExternalRef);
Assert.AreEqual(typeof(Test), externFunction.ExternalRef.Type);
}