anchor.diff:  skinparam shadowing false
   * SpockEngine
   ** SpecA
  -*** TestA1
  -*** TestA2
  +*** testA1
  +*** testA2
   ** SpecB
  -*** TestB1
  -*** TestB2
  -**** TestB2[1]
  -**** TestB2[2]
  +*** testB1
  +*** testB2
  +**** testB2[1]
  +**** testB2[2]
   @endwbs
   ....
   
  
positive.code: skinparam shadowing false
  * SpockEngine
  ** SpecA
  *** TestA1
  *** @ResourceLock("R")\nTestA2 <<write_lock>>
  ** SpecB
  *** @ResourceLock("R")\nTestB1 <<write_lock>>
  *** TestB2
  **** TestB2[1]
  **** TestB2[2]
  @endwbs
  ....
  
  
negative.code: skinparam shadowing false
  * SpockEngine
  ** SpecA
  *** testA1
  *** testA2
  ** SpecB
  *** testB1
  *** testB2
  **** testB2[1]
  **** testB2[2]
  @endwbs
  ....
  
  