old_contents: from openroad import Design, Tech
  import helpers
  import gpl_aux
  
  tech = Tech()
  tech.readLiberty("./library/nangate45/NangateOpenCellLibrary_typical.lib")
  tech.readLef("./nangate45.lef")
  design = Design(tech)
  design.readDef("./simple01-td.def")
  
  design.evalTclString("create_clock -name core_clock -period 2 clk")
  
  design.evalTclString("set_wire_rc -signal -layer metal3")
  design.evalTclString("set_wire_rc -clock  -layer metal5")
  
  gpl_aux.global_placement(design, timing_driven=True)
  
  design.evalTclString("estimate_parasitics -placement")
  design.evalTclString("report_worst_slack")
  
  def_file = helpers.make_result_file("simple01-td.def")
  design.writeDef(def_file)
  helpers.diff_files(def_file, "simple01-td.defok")
  
  
  # source helpers.tcl
  # set test_name simple01-td
  # read_liberty ./library/nangate45/NangateOpenCellLibrary_typical.lib
  
  # read_lef ./nangate45.lef
  # read_def ./$test_name.def
  
  # create_clock -name core_clock -period 2 clk
  
  # set_wire_rc -signal -layer metal3
  # set_wire_rc -clock  -layer metal5
  
  # global_placement -timing_driven
  
  # # check reported wns
  # estimate_parasitics -placement
  # report_worst_slack
  
  # set def_file [make_result_file $test_name.def]
  # write_def $def_file
  # diff_file $def_file $test_name.defok
  
new_contents: from openroad import Design, Tech
  import helpers
  import gpl_aux
  
  tech = Tech()
  tech.readLiberty("./library/nangate45/NangateOpenCellLibrary_typical.lib")
  tech.readLef("./nangate45.lef")
  design = Design(tech)
  design.readDef("./simple01-td.def")
  
  design.evalTclString("create_clock -name core_clock -period 2 clk")
  
  design.evalTclString("set_wire_rc -signal -layer metal3")
  design.evalTclString("set_wire_rc -clock  -layer metal5")
  
  gpl_aux.global_placement(design, timing_driven=True)
  
  design.evalTclString("estimate_parasitics -placement")
  design.evalTclString("report_worst_slack")
  
  def_file = helpers.make_result_file("simple01-td.def")
  design.writeDef(def_file)
  helpers.diff_files(def_file, "simple01-td.defok")
  
subject: Remove dead code from test