/usr/share/gvfs/mounts/localtest.mount is in gvfs-daemons 1.28.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | [Mount]
Type=localtest
Exec=/usr/lib/gvfs/gvfsd-localtest
AutoMount=false
|