Catch last inner exception when using the -ErrorAction Stop flag - powershell

Question

Here is the code:
Try{
$connection = Test-Connection -BufferSize 32 -Count 1 -ErrorAction Stop -ComputerName "test"
return $connection.StatusCode.ToString()
}
Catch [System.Net.NetworkInformation.PingException]{
return "Ping Exception"
}
Catch [Exception]{
return "Unexpected exception"
}
Now, let's consider the case where the -ComputerName would not be found, this would return me a System.Net.NetworkInformation.PingException. But, in the above code the output would be Unexpected exception.
Refering to this answer, I should use System.Management.Automation.ActionPreferenceStopException to catch it.
Now my question is, how can I catch the last inner exception when using the -ErrorAction Stop flag. Should I just throw a PingException ? It doesn't seems to be a good idea since I can't be sure a PinException really is the cause of the ErrorAction trigger.

Answer 1

Turns out that when using -ErrorAction Stop flag, non-terminating errors are wrapped and thrown as type System.Management.Automation.ActionPreferenceStopException. Therefore a solution would be to walk through the exception tree like so,
Try{
$connection = Test-Connection -BufferSize 32 -Count 1 -ErrorAction Stop -ComputerName "test"
return $connection.StatusCode.ToString()
}
Catch [System.Management.Automation.ActionPreferenceStopException]{
$exception = $_.Exception
#Walk through Exception tree
while ($exception.InnerException) {
$exception = $exception.InnerException
}
#Return only the last inner exception
return $exception.Message
}
Catch [Exception]{
return "Unexpected exception"
}
EDIT
Note that my code is returning the last inner exception Message as a string. The same logic can be used to find other information if needed.