Unit Testing Initialize/Reset Functions in a Simulink Function Test Harness

Hello everyone,

I have designed a simple Simulink Function that I would like to unit test.

Inside this function, I use a state to implement a simple signal-hold behavior. I would now like to verify and test the Initialize Function that is part of this Simulink Function.

Since the Simulink Function itself is quite simple, I would prefer not to create an additional model wrapper just to access the initialize port.

Is there a recommended way to unit test reset and initialize functions for Simulink Functions or subsystems in general, without using a model wrapper?

Best regards,

Fabian