ptoect

tests/index.test.ts

@@ -0,0 +1,15 @@
+import { sum, isEven, reverse } from '../src/index';
+import { test, expect } from 'vitest';
+
+test('sum adds numbers', () => {
+  expect(sum(2, 3)).toBe(5);
+});
+
+test('isEven detects even numbers', () => {
+  expect(isEven(4)).toBe(true);
+  expect(isEven(5)).toBe(false);
+});
+
+test('reverse reverses string', () => {
+  expect(reverse('hello')).toBe('olleh');
+});