fix tests

example/example.ts

@@ -51,7 +51,7 @@ server.on('request', async (req, res) => {
   const path = getPath(req.url || '/');
 
   res.on('close', () => {
-    inspector.instruments.measurements.trackResponse({
+    inspector.instruments.metrics.trackResponse({
       status: res.statusCode,
       duration: performance.now() - start,
     });

tests/inspector.test.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from 'vitest';
+import { Inspector } from '../lib/index.js';
+import { MemoryStore } from '../lib/store.js';
+
+describe('Inspector', () => {
+  it('should create a new instance', () => {
+    const inspector = new Inspector({
+      store: new MemoryStore(),
+    });
+    expect(inspector).toBeInstanceOf(Inspector);
+  });
+});