Unit testing Stateflow charts

Hi,

I have a set of Stateflow Atomic Subcharts that we have developed. I would like to develop automated unit tests for these, but I cannot find any examples of how to implement these tests.

Can anyone point me to any examples of testing Stateflow charts?

Thanks

Answer 1

[Julia Antoniou]

Hi Garret,

There is a tutorial in our documentation that explains how to generate reusable code from an atomic stateflow chart. You can then use this code for unit testing. See the following link for the tutorial: https://www.mathworks.com/help/stateflow/ug/tutorial-generating-reusable-code-for-unit-testing.html

[Garret Fick]

Thanks for pointing me to the tutorial. I have seen that one before, but it doesn't demonstrate testing of Atomic Subcharts within the MATLAB environment. Despite the name of the tutorial, that one simply shows how to generate code (presumably to test outside of Matlab).

Are there any other tutorials that demonstrate testing in the Matlab environment?

[Julia Antoniou]

Hi Garret,

Yes, I see what you mean now. I am not sure we have an example specific to doing unit testing in MATLAB for Stateflow. However, I was able to find this documentation section on testing frameworks within the MATLAB environment. Using these frameworks, you could develop unit tests for your stateflow chart.

https://www.mathworks.com/help/matlab/matlab-unit-test-framework.html

The doc link below would be a good reference for how to programmatically interact with your stateflow chart:

https://www.mathworks.com/help/stateflow/programmatic-manipulation.html

[Abhishek Ballaney]

Hi Julia,

In this case, how do we convert a state chart to MATLAB code (.m file)? Please guide.

[Garret Fick]

I found it is possible to use Simulink Test to create tests and that has worked well for us.

The key is to create a Test Sequence, and then use that to send data into your model. If that isn't enough tips, reply and I'll fill in more details.