It should be possible to import the TargetLInk code into a SIL or PIL block and then test this with Simulink Test. There is a video on youtube that describes the MIL/SIL testing process with Targetlink:
The IEC Certification kit provides qualification artifacts for a workflow with Embedded Coder but you could add your own test cases or work with our consulting to add custom test cases to the kit to qualify the the tools.
