fix sapt test class errors

mdsapt/tests/test_sapt.py

@@ -9,32 +9,26 @@
 from ..config import Config, load_from_yaml_file
 from ..sapt import TrajectorySAPT, DockingSAPT
 
+traj_settings = load_from_yaml_file(
+    os.path.join(os.getcwd(), 'mdsapt', 'tests', 'testing_resources', 'test_input.yaml'))
+
+dock_settings = load_from_yaml_file(
+            os.path.join(os.getcwd(), 'mdsapt', 'tests', 'testing_resources', 'docking_in.yaml'))
+
+unv = traj_settings.analysis.create_universe()
+elements = guess_types(unv.atoms.names)
+unv.add_TopologyAttr('elements', elements)
 
 class TestSAPT:
     """
     Test object for SAPT analysis
     """
-    traj_settings: Config
-    dock_settings: Config
-    unv: MDAnalysis.Universe
-
-    def setup(self) -> None:
-        """
-        Sets up system and config for other tests
-        """
-        self.traj_settings = load_from_yaml_file(
-            os.path.join(os.getcwd(), 'mdsapt', 'tests', 'testing_resources', 'test_input.yaml'))
-        self.dock_settings = load_from_yaml_file(
-            os.path.join(os.getcwd(), 'mdsapt', 'tests', 'testing_resources', 'docking_in.yaml'))
-        self.unv = self.traj_settings.analysis.create_universe()
-        elements = guess_types(self.unv.atoms.names)
-        self.unv.add_TopologyAttr('elements', elements)
 
     def test_run_traj_sapt(self) -> None:
         """
         Test running trajectory SAPT
         """
-        sapt12 = TrajectorySAPT(self.traj_settings)
+        sapt12 = TrajectorySAPT(traj_settings)
         sapt12.run(1, 2)
         cols_act = sapt12.results.columns
         cols_exp = ['residues', 'time', 'total', 'electrostatic',
@@ -47,7 +41,7 @@ def test_run_dock_sapt(self) -> None:
         """
         Test running docking SAPT
         """
-        docking = DockingSAPT(self.dock_settings)
+        docking = DockingSAPT(dock_settings)
         docking.run()
         cols_act = docking.results.columns
         cols_exp = ['structure', 'pair', 'total', 'electrostatic',