def test_touch_kbucket(self):
"""
Ensures that the lastAccessed field of the affected k-bucket is updated
appropriately.
"""
parent_node_id = 'abc'
r = RoutingTable(parent_node_id)
# At this point the single k-bucket in the routing table will have a
# lastAccessed time of 0 (zero). Sanity check.
self.assertEqual(0, r._buckets[0].last_accessed)
# Since all keys are in the range of the single k-bucket any key will
# do for the purposes of testing.
r.touch_kbucket('xyz')
self.assertNotEqual(0, r._buckets[0].last_accessed)
