diff --git a/craftclash/tests/test_aboutscreen.py b/craftclash/tests/test_aboutscreen.py
index ff3a5c7..14035b1 100644
--- a/craftclash/tests/test_aboutscreen.py
+++ b/craftclash/tests/test_aboutscreen.py
@@ -9,6 +9,7 @@
 import unittest
 from aboutscreen import aboutscreen  # assuming AboutScreen is a class in aboutscreen.py
 
+
 class TestAboutScreen(unittest.TestCase):
     def setUp(self):
         self.about_screen = aboutscreen()
@@ -16,5 +17,6 @@ def setUp(self):
     def test_init(self):
         self.assertIsNotNone(self.about_screen)
 
-if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/craftclash/tests/test_optionscreen.py b/craftclash/tests/test_optionscreen.py
index 14ef8b6..55dd5e2 100644
--- a/craftclash/tests/test_optionscreen.py
+++ b/craftclash/tests/test_optionscreen.py
@@ -7,7 +7,10 @@
 sys.path.append(os.path.join(parent_dir))
 
 import unittest
-from optionscreen import optionsscreen  # assuming OptionScreen is a class in optionscreen.py
+from optionscreen import (
+    optionsscreen,
+)  # assuming OptionScreen is a class in optionscreen.py
+
 
 class TestOptionScreen(unittest.TestCase):
     def setUp(self):
@@ -16,5 +19,6 @@ def setUp(self):
     def test_init(self):
         self.assertIsNotNone(self.option_screen)
 
-if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_main.py b/tests/test_main.py
index 27c1492..74d3d32 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -11,6 +11,7 @@
 from tkinter import Tk
 from main import craftclash
 
+
 class TestCraftClash(unittest.TestCase):
     def setUp(self):
         self.app = craftclash()
@@ -18,5 +19,6 @@ def setUp(self):
     def test_window_title(self):
         self.assertEqual(self.app.title(), "CraftClash - Windows - 0.0.4 BETA")
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     unittest.main()