public void PutConstant()
{
AbstractMachineState state = SetupMachine();
PutConstantInstruction i = new PutConstantInstruction();
object[] args = { "ali", "X0" };
i.Process(args);
Assert.AreEqual("put_constant", i.Name());
Assert.AreEqual(2, i.NumberOfArguments());
i.Execute(state);
AbstractTerm X0 = (AbstractTerm)state["X0"];
Assert.IsTrue(X0.IsConstant);
Assert.AreEqual("ali", X0.Data());
}