anchor.diff:  
     METHOD serialize_testclasses.
   
  +    DATA: lv_line1 LIKE LINE OF rt_source,
  +          lv_line2 LIKE LINE OF rt_source.
  +
  +
       CALL FUNCTION 'SEO_CLASS_GET_INCLUDE_SOURCE'
         EXPORTING
           clskey                       = is_clskey
  
positive.code:       RAISING   lcx_exception.
  
    PRIVATE SECTION.
      CLASS-METHODS deserialize_abap
        IMPORTING is_item    TYPE ty_item
                  it_files   TYPE ty_files_tt
  
negative.code:       ENDIF.
  
        lt_source = serialize_testclasses( ls_clskey ).
        IF NOT lt_source[] IS INITIAL AND gv_skip_testclass = abap_false.
          ls_file = abap_to_file( is_item  = is_item
                                  iv_extra = 'testclasses'
                                  it_abap  = lt_source ).     "#EC NOTEXT
  