This test only ensures that your webcam works for ProctorHub's purpose. It does not record anything.
Make sure you select Allow at the top of the page if your webcam does not turn on.
If you still can't see an image, click on the video camera icon at the top right of the screen and select the proper camera.
From the address bar of your browser, select the video camera icon, make sure the camera to share is your webcam, and click Share Selected Device
Microsoft Internet Explorer and Apple Safari