private Byt3Handler GetHandler(Byt3HandlerLookupType type, AHandler fallback)
{
ACalled = BCalled = CCalled = DCalled = false;
Byt3Handler handler = new Byt3Handler(type, fallback);
return(handler);
}
public void Handler_UseFallback_Test()
{
Byt3Handler handler = GetHandler(Byt3HandlerLookupType.UseFallback, null);
//handler.AddHandler(new HandlerA());
//handler.AddHandler(new HandlerB());
//handler.AddHandler(new HandlerC());
//handler.AddHandler(new HandlerD());
handler.Handle(new A(), null); //Works because of fallback
handler.Handle(new B(), null); //Works because of fallback
handler.Handle(new C_B(), null); //Works because of fallback
handler.Handle(new D_C(), null); //Works because of fallback
Assert.False(ACalled && BCalled && CCalled && DCalled);
}
public void Handler_TraverseUp_Test()
{
Byt3Handler handler = GetHandler(Byt3HandlerLookupType.TraverseUp, null);
handler.AddHandler(new HandlerA {
TestInstance = this
});
handler.AddHandler(new HandlerB {
TestInstance = this
});
//handler.AddHandler(new HandlerC());
//handler.AddHandler(new HandlerD());
handler.Handle(new A(), null); //Works
handler.Handle(new B(), null); //Works
handler.Handle(new C_B(), null); //Works because traverse up
handler.Handle(new D_C(), null); //Works because traverse up
Assert.True(ACalled && BCalled);
Assert.False(CCalled && DCalled);
}
public void Handler_ExactOnly_Test()
{
Byt3Handler handler = GetHandler(Byt3HandlerLookupType.None, null);
//handler.AddHandler(new HandlerA());
handler.AddHandler(new HandlerB {
TestInstance = this
});
handler.AddHandler(new HandlerC {
TestInstance = this
});
//handler.AddHandler(new HandlerD());
Assert.Throws <HandlerNotFoundException>(() =>
handler.Handle(new A(), null)); //Crash because of Exact only and A is missing
handler.Handle(new B(), null); //Works
handler.Handle(new C_B(), null); //Works
Assert.Throws <HandlerNotFoundException>(() =>
handler.Handle(new D_C(), null)); //Crash because no traversal up
Assert.True(BCalled && CCalled);
Assert.False(ACalled && DCalled);
}
