diff --git a/diceplayer/shared/interface/dice_interface.py b/diceplayer/shared/interface/dice_interface.py
index 90630e8..91b091e 100644
--- a/diceplayer/shared/interface/dice_interface.py
+++ b/diceplayer/shared/interface/dice_interface.py
@@ -15,6 +15,7 @@ import time
 import sys
 import os
 
+
 DICE_END_FLAG: Final[str] = "End of simulation"
 DICE_FLAG_LINE: Final[int] = -2
 UMAANG3_TO_GCM3: Final[float] = 1.6605
diff --git a/tests/shared/config/test_player_dto.py b/tests/shared/config/test_player_dto.py
index a514fb1..98440af 100644
--- a/tests/shared/config/test_player_dto.py
+++ b/tests/shared/config/test_player_dto.py
@@ -5,12 +5,12 @@ import unittest
 
 class TestPlayerDTO(unittest.TestCase):
     def test_class_instantiation(self):
-        player_dto = PlayerDTO(opt=True, maxcyc=100, nprocs=4)
+        player_dto = PlayerDTO(opt=True, maxcyc=100, nprocs=4, ncores=4)
 
         self.assertIsInstance(player_dto, PlayerDTO)
 
     def test_min_altsteps(self):
-        player_dto = PlayerDTO(opt=True, maxcyc=100, nprocs=4, altsteps=100)
+        player_dto = PlayerDTO(opt=True, maxcyc=100, nprocs=4, ncores=4, altsteps=100)
 
         self.assertEqual(player_dto.altsteps, 20000)
 
@@ -18,7 +18,8 @@ class TestPlayerDTO(unittest.TestCase):
         player_dto = PlayerDTO.from_dict({
             'opt': True,
             'maxcyc': 100,
-            'nprocs': 4
+            'nprocs': 4,
+            'ncores': 4,
         })
 
         self.assertIsInstance(player_dto, PlayerDTO)
diff --git a/tests/shared/interface/test_dice_interface.py b/tests/shared/interface/test_dice_interface.py
index 4698751..1f2c6c4 100644
--- a/tests/shared/interface/test_dice_interface.py
+++ b/tests/shared/interface/test_dice_interface.py
@@ -1,6 +1,9 @@
 from diceplayer.shared.interface.dice_interface import DiceInterface
+from diceplayer.shared.environment.molecule import Molecule
 from diceplayer.shared.config.step_dto import StepDTO
 
+import io
+
 from tests.mocks.mock_proc import MockConnection, MockProc
 
 from unittest import mock
@@ -560,6 +563,38 @@ class TestDiceInterface(unittest.TestCase):
         with self.assertRaises(FileNotFoundError):
             dice._run_dice(1, 1)
 
+    def test_make_init_file(self):
+        dice = DiceInterface(
+            {
+                'ljname': 'test',
+                'outname': 'test',
+                'ncores': 1,
+                'dens': 1.0,
+                'nmol': [1],
+                'nstep': [1, 1],
+            }
+        )
+        dice.configure(
+            StepDTO(
+                ncores=1,
+                nprocs=1,
+                simulation_dir='test',
+                altsteps=1,
+                molecule=[
+                    
+                ],
+                nmol=[],
+            )
+        )
+
+        last_xyz_file = io.StringIO()
+        last_xyz_file.writelines([
+            'TEST',
+            'TEST',
+            'TEST',
+            'TEST',
+        ])
+
 
 if __name__ == '__main__':
     unittest.main()