How get local root path in svn?

Mercuril, Git and Bazaar has a way to get path root:

git rev-parse --show-toplevel
hg root 
bzr root

How print the local root path in subversion?

Update

Example:

> svn checkout https://example.com/svn/foo ~/foo --username fabiocerqueira
> cd ~/foo
> svn root (don't works)
  /home/user/project/foo/