determine if all processes are funcional

[jorgejesus]

Description

Check if all processes have unittests and are operational for example grassbuffer process requires GRASSGIS and normally GRASS is not installed

Environment

• operating system: All
• Python version: 2.7,3.6
• PyWPS version:4.2.1
• source/distribution
• [x ] git clone
• Debian
• PyPI
• zip/tar.gz
• other (please specify):
• web server
• Apache/mod_wsgi
• CGI
• [x ] other (please specify): pywps-flask

Steps to Reproduce

start demo.py and run
http://localhost:5000/wps?request=Execute&service=WPS&identifier=grassbuffer&version=1.0.0&datainputs=poly_in=http://localhost:5000/static/data/point.gml;buffer=1

Additional Information