Fuse support in test case

#1

Currently, we want to use fuse function to inject file system error in test case.
But there is permission issue

/bin/fusermount: failed to open /etc/fuse.conf: Permission denied
/bin/fusermount: option allow_other only allowed if 'user_allow_other' is set in /etc/fuse.conf
start server failed, err=fusermount exited with code 256

Can you help to support it?
Thanks

#2

here is the PR for with the failing test