Best Integration Testing Framework for onem2m IOT

I hope all are doing well !!

I am in need to use Any Integration Testing Framework that fulfills the challenges of Interaction for the Various Services on CSE and AE in Onem2m Functional Architecture.

If possible Could Someone Please let me know if there is any open Source Community Addition Framework is available for Integration Testing of Onem2m Based Product.

I found few like Spirent, IOT Testing as a Service But I believe only Enterprise Editions are available for these Frameworks ...Please correct me if I missed Anything.

Thanks in Advance...