Add one test for dav
Add one test for dav

untitaker/vdirsyncer,hobarrera/vdirsyncer,credativUK/vdirsyncer,untitaker/vdirsyncer,untitaker/vdirsyncer,tribut/vdirsyncer,mathstuf/vdirsyncer,tribut/vdirsyncer,mathstuf/vdirsyncer,hobarrera/vdirsyncer,credativUK/vdirsyncer