Cleans up test comments and makes an error more verbose

src/poli/objective_repository/rasp/isolated_function.py

@@ -344,7 +344,12 @@ def __call__(self, x, context=None):
             )
 
             if hamming_distance > 1 and not self.additive:
-                raise ValueError("RaSP is only able to simulate single mutations.")
+                raise ValueError(
+                    "RaSP is only able to simulate single mutations."
+                    " If you want to simulate multiple mutations,"
+                    " you should set additive=True in the create method"
+                    " or in the black box of RaSP."
+                )
 
             closest_wildtypes[closest_wildtype_pdb_file].append(mutant_residue_string)
             mutant_residue_strings.append(mutant_residue_string)

src/poli/tests/registry/proteins/test_rasp.py

@@ -10,8 +10,6 @@
 
 @pytest.mark.poli__rasp
 def test_rasp_on_3ned_against_notebooks_results():
-    # If the previous import was successful, we can
-    # create a RaSP problem:
     problem = objective_factory.create(
         name="rasp",
         wildtype_pdb_path=THIS_DIR / "3ned.pdb",
@@ -79,8 +77,6 @@ def test_rasp_on_3ned_against_notebooks_results_isolated():
 
 @pytest.mark.poli__rasp
 def test_rasp_using_additive_flag_on_two_mutations():
-    # If the previous import was successful, we can
-    # create a RaSP problem:
     problem = objective_factory.create(
         name="rasp",
         wildtype_pdb_path=THIS_DIR / "3ned.pdb",