1 files changed, 21 insertions, 0 deletions
diff --git a/src/lib/utils.test.ts b/src/lib/utils.test.ts
new file mode 100644
index 0000000..9a61d41
--- /dev/null
+++ b/src/lib/utils.test.ts
@@ -0,0 +1,21 @@
+import { describe, expect, test } from 'vitest';
+import { cn } from './utils';
+
+describe('cn', () => {
+  test('merges class names and resolves tailwind conflicts', () => {
+    expect(cn('px-2', 'px-4')).toBe('px-4');
+  });
+
+  test('handles conditional and falsy inputs', () => {
+    expect(cn('text-sm', false && 'hidden', undefined, 'font-medium')).toBe(
+      'text-sm font-medium',
+    );
+  });
+
+  test('supports object and array style class inputs', () => {
+    expect(
+      cn(['inline-flex', ['items-center']], { 'cursor-pointer': true }),
+    ).toBe('inline-flex items-center cursor-pointer');
+  });
+});
+