Ordering by jcr:path or jcr:name does not supported.
There is two ways to order results, when path may be used as criteria:
Order by property with value type NAME or PATH (jcr supports it)
Order by jcr:path or jcr:name - sort by exact path or name of node (jcr do not supports it)
If no order specification is supplied in the query statement, implementations may support document order on the result nodes (see jsr-170 / 6.6.4.2 Document Order). And it's sorted by order number.
By default, (if query do not contains any ordering statements) result nodes is sorted by document order.
SELECT * FROM nt:unstructured WHERE jcr:path LIKE 'testRoot/%'