<?xml version="1.0"?>
<!--Specified elements present no more than once-->
<root_element>
  <condition></condition><!--condition case-->
  <element1></element1><!--single path-->
  <element2></element2><!--multiple paths-->
  <element3></element3>
  <element4></element4><!--duplicate paths-->
  <element5 attribute=""></element5><!--single path-->
  <element6 attribute=""></element6><!--multiple paths-->
  <element7 attribute=""></element7>
  <element8 attribute=""></element8><!--duplicate paths-->
  <nest>
    <element9></element9><!--nested element-->
  </nest>
  <nest>
    <element10 attribute=""></element10><!--nested attribute-->
  </nest>
</root_element>

<?xml version="1.0"?>
<!--Specified elements present no more than once-->
<root_element>
  <condition></condition><!--condition case-->
  <element1></element1><!--single path-->
  <element2></element2><!--multiple paths, only one exists-->
  <element4></element4><!--duplicate paths-->
  <element5 attribute=""></element5><!--single path-->
  <element6 attribute=""></element6><!--multiple paths, only one exists-->
  <element8 attribute=""></element8><!--duplicate paths-->
  <nest>
    <element9></element9><!--nested element-->
  </nest>
  <nest>
    <element10 attribute=""></element10><!--nested attribute-->
  </nest>
</root_element>

Remove invalid elements from valid test case
Remove invalid elements from valid test case
