root=BlueSteelBagIndex.applyEditsToTokenTable(edits, root, new ProbabilisticBalancingPolicy(10, 0.5f, 0.0f), 2); // "2" here means we get three tiers
SlicedBytes sb;
TokenRec tr;
sb = new SlicedBytes(ArrayBytes.fromString("brot"), 0, 4);
tr = root.descend(sb);
assertEquals(3, sb.getSlicePosition());
assertEquals('o', (char)tr.token);
sb = new SlicedBytes(ArrayBytes.fromString("bro"), 0, 3);
tr = root.descend(sb);