Fix the extract url test to check for raising a value error
Fix the extract url test to check for raising a value error

erinspace/scrapi,jeffreyliu3230/scrapi,felliott/scrapi,mehanig/scrapi,fabianvf/scrapi,erinspace/scrapi,fabianvf/scrapi,alexgarciac/scrapi,CenterForOpenScience/scrapi,CenterForOpenScience/scrapi,mehanig/scrapi,felliott/scrapi