title: Facebook credits Graph API call to get order details does not work for test users
body: <p>Per Facebook credits documentation.</p>
  
  <p>Get Order</p>
  
  <p>Gets order details for the specified order_id</p>
  
  <p>API</p>
  
  <p>GET https://graph.facebook.com/[order id]?access_token=ACCESS_TOKEN</p>
  
  <p><strong>Note: You must use actual orders when calling the Graph API. Orders from test users will not be processed.</strong></p>
  
  <p>How do we test this call on dev apps? Is the only way to test this by making real Facebook credits purchases on the app? I would rather user $facebook->api_client->getOrderDetails if that is the case.</p>