Add unit tests for fill_hdf5_file
Add unit tests for fill_hdf5_file

glewis17/fuel,aalmah/fuel,dmitriy-serdyuk/fuel,vdumoulin/fuel,rizar/fuel,mjwillson/fuel,markusnagel/fuel,chrishokamp/fuel,dhruvparamhans/fuel,lamblin/fuel,dribnet/fuel,mila-udem/fuel,lamblin/fuel,capybaralet/fuel,rodrigob/fuel,markusnagel/fuel,codeaudit/fuel,bouthilx/fuel,udibr/fuel,capybaralet/fuel,codeaudit/fuel,dmitriy-serdyuk/fuel,vdumoulin/fuel,orhanf/fuel,ejls/fuel,chrishokamp/fuel,rizar/fuel,jbornschein/fuel,aalmah/fuel,dhruvparamhans/fuel,janchorowski/fuel,orhanf/fuel,bouthilx/fuel,EderSantana/fuel,dwf/fuel,jbornschein/fuel,rodrigob/fuel,hantek/fuel,laurent-dinh/fuel,dwf/fuel,hantek/fuel,glewis17/fuel,udibr/fuel,mjwillson/fuel,EderSantana/fuel,laurent-dinh/fuel,ejls/fuel,harmdevries89/fuel,harmdevries89/fuel,dribnet/fuel,janchorowski/fuel,mila-udem/fuel