Gen test & usecase (#510)
Gen test & usecase (#510)

* generate usecase cod

* generator test & usecase

* correction problem with PEP8

* correction function call

* correction

* correction remarks on review

* correction cases & rename

* correction

* correction

* correction

* correction for's

IntelLabs/hpat,IntelLabs/hpat,IntelLabs/hpat,IntelLabs/hpat