From dc7787707c8c1bc175573fb7a524cc0bcb6f5a31 Mon Sep 17 00:00:00 2001
From: Github Readme Stats Bot <no-reply@githubreadmestats.com>
Date: Sat, 17 Jan 2026 18:15:34 -0700
Subject: [PATCH] Utils test

---
 utils.test.ts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 utils.test.ts

diff --git a/utils.test.ts b/utils.test.ts
new file mode 100644
index 0000000..25bb59f
--- /dev/null
+++ b/utils.test.ts
@@ -0,0 +1,22 @@
+import { expect, test, spyOn } from "bun:test"
+import { arrayOfLength, arrayShuffle } from './utils';
+
+test('arrayOfLength', () => {
+  expect(arrayOfLength(3)).toHaveLength(3)
+})
+
+test('arrayShuffle', () => {
+  spyOn(global.Math, 'random').mockReturnValue(0.123);
+
+  const unshuffled = [1, 2, 3]
+  const shuffled = arrayShuffle(unshuffled)
+
+  expect(shuffled.includes(unshuffled[0])).toBe(true)
+  expect(shuffled.includes(unshuffled[1])).toBe(true)
+  expect(shuffled.includes(unshuffled[2])).toBe(true)
+  expect(shuffled[0]).not.toBe(unshuffled[0])
+  expect(shuffled[1]).not.toBe(unshuffled[1])
+  expect(shuffled[2]).not.toBe(unshuffled[2])
+
+  spyOn(global.Math, 'random').mockRestore();
+}, { repeats: 9 })