var test = require("tape") , rank = require("../index.js").rank , unrank = require("../index.js").unrank var ranks = [ [1,2,3,0], [2,1,3,0], [2,3,1,0], [3,2,1,0], [1,3,2,0], [3,1,2,0], [3,2,0,1], [2,3,0,1], [2,0,3,1], [0,2,3,1], [3,0,2,1], [0,3,2,1], [1,3,0,2], [3,1,0,2], [3,0,1,2], [0,3,1,2], [1,0,3,2], [0,1,3,2], [1,2,0,3], [2,1,0,3], [2,0,1,3], [0,2,1,3], [1,0,2,3], [0,1,2,3] ] test("rank", function(t) { t.equals(rank([]), 0) t.equals(rank([0]), 0) for(var i=0; i