Make Vitest helpers global

examples/button-factory/src/button.test.js

@@ -1,4 +1,3 @@
-import { it, expect, describe } from 'vitest';
 import { createButton } from './button.js';
 
 describe('createButton', () => {

examples/button-factory/src/local-storage.test.js

@@ -1,5 +1,3 @@
-import { it, expect } from 'vitest';
-
 it('should properly assign to localStorage', () => {
   const key = 'secret';
   const message = "It's a secret to everybody.";

examples/button-factory/src/secret-input.test.js

@@ -1,4 +1,3 @@
-import { describe, expect, it, beforeEach, vi, afterEach } from 'vitest';
 import { screen } from '@testing-library/dom';
 import userEvent from '@testing-library/user-event';
 import { createSecretInput } from './secret-input.js';

examples/button-factory/vitest.config.ts

@@ -3,5 +3,6 @@ import { defineConfig } from 'vitest/config';
 export default defineConfig({
   test: {
     environment: 'happy-dom',
+    globals: true,
   },
 });