Introduce geoGraphNode test

second try , not using GMock

ok, this should be clean , so not sure what is going on here:

 17:17:06 WARNING: cannot load libPixelGeoModel.so for factory PixelDetectorTool
  17:17:06 WARNING: /cvmfs/atlas-nightlies.cern.ch/repo/sw/main_Athena_x86_64-el9-gcc13-opt/2025-04-15T2101/Athena/25.0.30/InstallArea/x86_64-el9-gcc13-opt/lib/libPixelGeoModelLib.so: undefined symbol: _ZTI19GeoVDetectorFactory
  17:17:06 ToolSvc             ERROR Cannot create tool PixelDetectorTool (No factory found)
  17:17:06 GeoModelSvc         ERROR GeoModelSvc/src/GeoModelSvc.cxx:65 (StatusCode GeoModelSvc::initialize()): code FAILURE: m_detectorTools.retrieve()
  17:17:07 WARNING: cannot load libPixelGeoModel.so for factory PixelDetectorTool
  17:17:07 WARNING: /cvmfs/atlas-nightlies.cern.ch/repo/sw/main_Athena_x86_64-el9-gcc13-opt/2025-04-15T2101/Athena/25.0.30/InstallArea/x86_64-el9-gcc13-opt/lib/libPixelGeoModelLib.so: undefined symbol: _ZTI19GeoVDetectorFactory
  17:17:07 ToolSvc             ERROR Cannot create tool PixelDetectorTool (No factory found)
  17:17:07 GeoModelSvc         ERROR Service failed to initilize ToolHandles : GeoModelSvc 	 Failed to retrieve tool PixelDetectorTool/PixelDetectorTool	 StatusCode=FAILURE
  17:17:07 ServiceManager      ERROR Unable to initialize Service: GeoModelSvc

enabled an automatic merge when all merge checks for 4b5fad7e pass

aborted the automatic merge because the source branch was updated. Learn more.

added 1 commit

• d005a2b0 - Edit RCBase.h

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enabled an automatic merge when all merge checks for d005a2b0 pass

aborted the automatic merge because target branch was updated

added 4 commits

• f3a5364c - 1 commit from branch main
• aef9ed17 - add new test
• 6aca40fc - allow gtest discovery
• 0dd2c96d - Edit RCBase.h

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merged