# unrecoverable, then see what happens
d.addCallback(lambda ign:
- self.rootnode.create_empty_directory(u"subdir"))
+ self.rootnode.create_subdirectory(u"subdir"))
d.addCallback(_stash_uri, "subdir")
d.addCallback(lambda subdir_node:
subdir_node.add_file(u"grandchild",