[Luis] add tests for utils functions
[Luis] add tests for utils functions

AltitudeDigital/VPAIDHTML5Client,jdreetz/VPAIDHTML5Client,AltitudeDigital/VPAIDHTML5Client,mjamrozek/VPAIDHTML5Client,jdreetz/VPAIDHTML5Client,MailOnline/VPAIDHTML5Client,MailOnline/VPAIDHTML5Client