Add some additional examples

examples/scratchpad/fake-time.test.js

@@ -0,0 +1,21 @@
+import { vi, describe, it, expect } from 'vitest';
+
+vi.useFakeTimers();
+
+function delay(callback) {
+  setTimeout(() => {
+    callback('Delayed');
+  }, 1000);
+}
+
+describe('delay function', () => {
+  it('should call callback after delay', () => {
+    const callback = vi.fn();
+
+    delay(callback);
+
+    vi.advanceTimersByTime(1000);
+
+    expect(callback).toHaveBeenCalledWith('Delayed');
+  });
+});