Upstream simple-statistics/simple-statistics state of the touched files before afe3d20779

test/permutations_heap.test.js

@@ -0,0 +1,19 @@
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import * as ss from "../index.js";
+
+describe("permutationsHeap", function () {
+    it("generates 1 permutation", function () {
+        assert.deepEqual(ss.permutationsHeap([1]), [[1]]);
+    });
+    it("generates 1, 2, 3 permutations", function () {
+        assert.deepEqual(ss.permutationsHeap([1, 2, 3]), [
+            [1, 2, 3],
+            [2, 1, 3],
+            [3, 1, 2],
+            [1, 3, 2],
+            [2, 3, 1],
+            [3, 2, 1]
+        ]);
+    });
+});