text: // BSD 3-Clause License
  
  // Copyright (c) 2019, SCALE Lab, Brown University
  // All rights reserved.
  
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  
  // * Redistributions of source code must retain the above copyright notice, this
  //   list of conditions and the following disclaimer.
  
  // * Redistributions in binary form must reproduce the above copyright notice,
  //   this list of conditions and the following disclaimer in the documentation
  //   and/or other materials provided with the distribution.
  
  // * Neither the name of the copyright holder nor the names of its
  //   contributors may be used to endorse or promote products derived from
  //   this software without specific prior written permission.
  
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  #include "OpenPhySyn/Psn/Psn.hpp"
  #include "PsnException/PsnException.hpp"
  #include "Utils/FileUtils.hpp"
  #include "doctest.h"
  
  namespace psn
  {
  
  TEST_CASE("testing writing DEF files")
  {
      Psn& psn_inst = Psn::instance();
      try
      {
          bool mkdir_result =
              FileUtils::createDirectoryIfNotExists("../tests/results");
          CHECK(mkdir_result);
          psn_inst.clearDatabase();
          psn_inst.readLef(
              "../tests/data/libraries/Nangate45/NangateOpenCellLibrary.mod.lef");
          psn_inst.readDef("../tests/data/designs/fanout/fanout_nan.def");
          CHECK(psn_inst.database()->getChip() != nullptr);
          int result = psn_inst.writeDef("../tests/results/test.def");
          CHECK(result >= 1);
      }
      catch (PsnException& e)
      {
          FAIL(e.what());
      }
  }
  } // namespace psn