Fix tests

Author: luizrrodrigues

__tests__/__snapshots__/index.js.snap

@@ -379,5 +379,11 @@ Object {
     "delay": [Function],
     "formatDuration": [Function],
   },
+  "tracking": Object {
+    "default": undefined,
+    "event": [Function],
+    "init": [Function],
+    "pageView": [Function],
+  },
 }
 `;