def METHOD_NAME(
    svn, svn_mod, repo_url, repo_revision, repo_target
):
    """
    svn.latest against existing repository
    """
    current_rev = repo_revision
    cwd = str(repo_target.parent)
    basename = repo_target.name
    opts = ("-r", current_rev)
    assert svn_mod.checkout(cwd, repo_url, basename, None, None, opts)
    ret = svn.latest(name=repo_url, rev=repo_revision, target=str(repo_target))
    assert ret.result is True
    assert not ret.changes
    assert isinstance(ret.changes, dict)
    assert repo_target.joinpath(".svn").is_dir()