2 Why We Need Model-Based Testing

200 Testing Systems with Complex State
using System;
using NModel.Conformance;
using NModel.Terms;
namespace BagImplTestHarness
{
public class Stepper : IStepper
{
}
}
BagImpl bag = new BagImpl.BagImpl();
public Action DoAction(Action a)
{
switch (a.Name)
{
case ("Add"):
bag.Add((string)a[0]);
return null;
case ("Delete"):
bag.Delete((string)a[0]);
return null;
case ("Lookup_Start"):
int c = bag.Lookup((string)a[0]);
return Action.Create("Lookup_Finish", c);
case ("Count_Start"):
return Action.Create("Count_Finish", bag.Count);
default :
throw new Exception("Unexpected action " + a);
}
}
public void Reset()
{
bag = new BagImpl();
}
Figure 12.4. Bag stepper.
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