Use the proper skip and separation in tests

Author: Pierre-Sassoulas

tests/checkers/unittest_spelling.py

@@ -40,19 +40,19 @@ def _get_msg_suggestions(self, word: str, count: int = 4) -> str:
         suggestions = "' or '".join(self.checker.spelling_dict.suggest(word)[:count])
         return f"'{suggestions}'"
 
-    def test_spelling_dict_help(self) -> None:
+    def test_spelling_dict_help_no_enchant(self) -> None:
         assert "both the python package and the system dep" in _get_enchant_dict_help(
             [], pyenchant_available=False
         )
         assert "need to install the system dep" in _get_enchant_dict_help(
             [], pyenchant_available=True
         )
-        if enchant is not None:
-            assert "Available dictionaries: " in _get_enchant_dict_help(
-                enchant.Broker().list_dicts(), pyenchant_available=True
-            )
-        else:
-            pytest.skip("'enchant' is not installed.")
+
+    @skip_on_missing_package_or_dict
+    def test_spelling_dict_help_enchant(self) -> None:
+        assert "Available dictionaries: " in _get_enchant_dict_help(
+            enchant.Broker().list_dicts(), pyenchant_available=True
+        )
 
     @skip_on_missing_package_or_dict
     @set_config(spelling_dict=spell_dict)