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/* eslint no-shadow: 0 */
const test = require("tap").test;const ss = require("../");
test("permutationsHeap", function (t) {    t.test("generates 1 permutation", function (t) {        t.same(ss.permutationsHeap([1]), [[1]]);        t.end();    });    t.test("generates 1, 2, 3 permutations", function (t) {        t.same(ss.permutationsHeap([1, 2, 3]), [            [1, 2, 3],            [2, 1, 3],            [3, 1, 2],            [1, 3, 2],            [2, 3, 1],            [3, 2, 1]        ]);        t.end();    });    t.end();});