* Wait for socket to be open
* Fix call on null
* Allow DB access for MountProviderTest
Makes unit tests pass when using object store, since their FS access is
actually oc_filecache DB access. It is currently not possible to mock
or bypass the logic from "SharedMount::verifyMountPoint()" triggered by
this test.
fromTmpFile function, usual mkdir call is only working for file's parent
directory. Does not care upper parent folders. I added a recursive
function that creates parent non-existing folders with usual mkdir.