Fix/crashes reported in 345 344#349

Merged

diptorupd merged 3 commits intoIntelPython:masterfrom

diptorupd:fix/crashes_reported_in_345_344

Apr 1, 2021

Commits on Apr 1, 2021

Add missing exception handling.
Diptorup Deb
committed
Fix C API test cases that were segfaulting/failing when no devices exist.
Diptorup Deb
committed
Add negative test cases.
Diptorup Deb
committed