Get-ServerHealth to get info about OWA health?

Hi,

In my script, I use Test-OwaConnectivity to get info about Owa in Ex2010 and Ex2007. Now, I installed Ex2013 on Windows Server 2012,  it shows the error:

The test couldn't test the internal URL of this virtual directory, because the internalURL property isn't set.

....

The service endpoint "ExchangeLoginUrl" was not found. This endpoint gets created during setup, but it has been deleted. ....... ServiceEndpointNotFoundException ....

However, if use Get-OwaVirtualDirectory, I can see the InternalUrl is set correctly, and I can use it to access owa.

I searched, and found http://technet.microsoft.com/en-us/library/jj218703%28v=exchg.150%29.aspxUse the 

The Test-OwaConnectivity cmdlet has been deprecated and will be removed from a future release. Use theGet-ServerHealth cmdlet to monitor server state.

However, it does not say what parameter we should use to get similar info about owa. and I could not find any example from search.

Anyone knows how to do it?

thanks