ert--results-move
ert--results-move is a compiled Lisp function in `ert.el
'.
(ert--results-move NODE EWOC-FN ERROR-MESSAGE)
Move point from NODE to the previous or next node.
EWOC-FN specifies the direction and should be either `ewoc-prev'
or `ewoc-next'. If there are no more nodes in that direction, an
error is signaled with the message ERROR-MESSAGE.