I have an XML I'm trying to parse from memory and get the status of each of my heart beat tests using Nokogiri. Here is the solution I have...

xml = 
<a:HBeat>
  <a:ElapsedTime>3 ms</a:ElapsedTime>
  <a:Name>Service 1</a:Name>
  <a:Status>true</a:Status>
</a:HBeat>
<a:HBeat>
  <a:ElapsedTime>4 ms</a:ElapsedTime>
  <a:Name>Service 2</a:Name>
  <a:Status>true</a:Status>
  </a:HBeat>
<a:HBeat>

I have tried using both css and xpath to pull back the value for each Status and put it into an array. Code is below:

doc = Nokogiri::XML.parse(xml)
#service_state = doc.css("a:HBeat, a:Status", 'a' => 'http://schemas.datacontract.org/2004/07/OpenAPI.Entity').map {|node| node.children.text}
service_state = doc.xpath("//*[@a:Status]", 'a' => 'http://schemas.datacontract.org/2004/07/OpenAPI.Entity').map(&:text)

Both will return service_state = []. Any thoughts or recommendations?

Also, consider that I have almost identical xml for another test and I used the following snippet of code which does exactly what I wanted but for some reason isn't working with the xml that contains namespaces.

service_state = doc.css("HBeat Status").map(&:text)

Thanks!