test: attach a None buffer to a surface
test: attach a None buffer to a surface

Testcase for #108 and #110

vberger/wayland-client-rs,vberger/wayland-client-rs,Smithay/wayland-rs,vberger/wayland-client-rs,vberger/wayland-rs,vberger/wayland-rs,Smithay/wayland-rs