Can you update the following unit tests in cphd to make use of the new functionality?

• six/modules/c++/cphd/unittests/test_cphd_xml_optional.cpp (line 888-892)
  • also add an assert to diff the input with the buffer owned xml::lite::MinidomParser
• six/modules/c++/cphd/unittests/test_cphd_xml_control.cpp (line 905-908)
  • also add an assert to diff the input with the buffer owned xml::lite::MinidomParser

Also, can you clone the modded tests above to cphd03 analogues in that unittest dir of that module (it doesn't have any xml tests currently)

Can you update the following unit tests in cphd to make use of the new functionality?

* `six/modules/c++/cphd/unittests/test_cphd_xml_optional.cpp` (line 888-892)
  
  * also add an assert to diff the input with the buffer owned `xml::lite::MinidomParser`

* `six/modules/c++/cphd/unittests/test_cphd_xml_control.cpp` (line 905-908)
  
  * also add an assert to diff the input with the buffer owned `xml::lite::MinidomParser`

Also, can you clone the modded tests above to cphd03 analogues in that unittest dir of that module (it doesn't have any xml tests currently)

I can update the current unittests for cphd. I took a stab at trying to making copies of these tests for cphd03 but I don't have enough knowledge to know if I'm doing this correctly. There are many fields and parameters that don't exist or differ between the two.