text: #!/usr/bin/env python3
  # See LICENSE for licensing information.
  #
  # Copyright (c) 2016-2019 Regents of the University of California and The Board
  # of Regents for the Oklahoma Agricultural and Mechanical College
  # (acting for and on behalf of Oklahoma State University)
  # All rights reserved.
  #
  import unittest
  from testutils import *
  import sys,os
  sys.path.append(os.getenv("OPENRAM_HOME"))
  import globals
  from globals import OPTS
  from sram_factory import factory
  import debug
  
  class contact_test(openram_test):
  
      def runTest(self):
          config_file = "{}/tests/configs/config".format(os.getenv("OPENRAM_HOME"))
          globals.init_openram(config_file)
  
          from tech import active_stack, poly_stack, beol_stacks
  
          # Don't do active because of nwell contact rules
          # Don't do metal3 because of min area rules
          for layer_stack in [poly_stack] + [beol_stacks[0]]:
              stack_name = ":".join(map(str, layer_stack))
  
              # Check single 1 x 1 contact"
              debug.info(2, "1 x 1 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(1, 1), directions=("H", "H"))
              self.local_drc_check(c)
              
              # Check single 1 x 1 contact"
              debug.info(2, "1 x 1 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(1, 1), directions=("H","V"))
              self.local_drc_check(c)
  
              # Check single x 1 contact"
              debug.info(2, "1 x 1 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(1, 1), directions=("H","H"))
              self.local_drc_check(c)
  
              # Check single 1 x 1 contact"
              debug.info(2, "1 x 1 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(1, 1), directions=("V","V"))
              self.local_drc_check(c)
  
          # Only do multiple contacts for BEOL
          for layer_stack in beol_stacks:
              stack_name = ":".join(map(str, layer_stack))
              
              # check vertical array with one in the middle and two ends
              debug.info(2, "1 x 3 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(1, 3))
              self.local_drc_check(c)
  
              # check horizontal array with one in the middle and two ends
              debug.info(2, "3 x 1 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(3, 1))
              self.local_drc_check(c)
  
              # check 3x3 array for all possible neighbors
              debug.info(2, "3 x 3 {} test".format(stack_name))
              c = factory.create(module_type="contact", layer_stack=layer_stack, dimensions=(3, 3))
              self.local_drc_check(c)
  
          # Test the well taps
          # check vertical array with one in the middle and two ends
          layer_stack = active_stack
          stack_name = ":".join(map(str, layer_stack))
          
          debug.info(2, "1 x 1 {} nwell".format(stack_name))
          c = factory.create(module_type="contact",
                             layer_stack=layer_stack,
                             implant_type="n",
                             well_type="n")
          self.local_drc_check(c)
  
          debug.info(2, "1 x 1 {} pwell".format(stack_name))
          c = factory.create(module_type="contact",
                             layer_stack=layer_stack,
                             implant_type="p",
                             well_type="p")
          self.local_drc_check(c)
          
          globals.end_openram()
          
  
  
  # run the test from the command line
  if __name__ == "__main__":
      (OPTS, args) = globals.parse_args()
      del sys.argv[1:]
      header(__file__, OPTS.tech_name)
      unittest.main(testRunner=debugTestRunner())
  