public void Concrete()
{
// GKState is an abstract type - but it does implement IsValidNextState (and accept anything)
using (var s1 = new ValidState())
using (var s2 = new InvalidState()) {
Assert.True(s2.IsValidNextState(s2), "self");
Assert.True(s2.IsValidNextState(s1), "different");
}
}
public void NullIsValidNextState()
{
// this will test the (manual) binding code (and not the test implementation)
using (var state = new InvalidState()) {
Assert.Throws <ArgumentNullException> (delegate { state.IsValidNextState((Class)null); }, "Class");
Assert.Throws <ArgumentNullException> (delegate { state.IsValidNextState((Type)null); }, "Type");
Assert.Throws <ArgumentNullException> (delegate { state.IsValidNextState((GKState)null); }, "Instance");
}
}