Remove one no-cover pragma by mocking a method

It is fairly easy to mock the _volume_key_loaded() method.

Signed-off-by: mulhern <amulhern@redhat.com>

Author: mulkieran

src/stratis_cli/_actions/_list_pool.py

@@ -314,7 +314,7 @@ def alert_codes(
                 and not vkl_is_bool
                 else []
             )
-        except DbusClientMissingPropertyError:  # pragma: no cover
+        except DbusClientMissingPropertyError:
             pool_encryption_alerts = [PoolEncryptionAlert.VOLUME_KEY_STATUS_UNKNOWN]
         return availability_alerts + no_alloc_space_alerts + pool_encryption_alerts
 

tests/integration/pool/test_list.py

@@ -16,10 +16,11 @@
 """
 
 # isort: STDLIB
+from unittest.mock import patch
 from uuid import uuid4
 
 # isort: FIRSTPARTY
-from dbus_client_gen import DbusClientUniqueResultError
+from dbus_client_gen import DbusClientMissingPropertyError, DbusClientUniqueResultError
 
 # isort: LOCAL
 from stratis_cli import StratisCliErrorCodes
@@ -316,3 +317,46 @@ def test_list_detail(self):
         Test detail view on running pool.
         """
         TEST_RUNNER(self._MENU + [f"--name={self._POOLNAME}"])
+
+    def test_list_volume_key_loaded_raises_detail(self):
+        """
+        Test with _volume_key_loaded raising DbusClientMissingPropertyError,
+        in detail view.
+        """
+
+        # isort: LOCAL
+        import stratis_cli  # pylint: disable=import-outside-toplevel
+
+        with patch.object(
+            # pylint: disable=protected-access
+            stratis_cli._actions._list_pool.Default,  # pyright: ignore
+            "_volume_key_loaded",
+            autospec=True,
+            side_effect=DbusClientMissingPropertyError(
+                "oops",
+                stratis_cli._actions._constants.POOL_INTERFACE,  # pyright: ignore
+                "VolumeKeyLoaded",
+            ),
+        ):
+            TEST_RUNNER(self._MENU + [f"--name={self._POOLNAME}"])
+
+    def test_list_volume_key_loaded_raises(self):
+        """
+        Test with _volume_key_loaded raising DbusClientMissingPropertyError.
+        """
+
+        # isort: LOCAL
+        import stratis_cli  # pylint: disable=import-outside-toplevel
+
+        with patch.object(
+            # pylint: disable=protected-access
+            stratis_cli._actions._list_pool.Default,  # pyright: ignore
+            "_volume_key_loaded",
+            autospec=True,
+            side_effect=DbusClientMissingPropertyError(
+                "oops",
+                stratis_cli._actions._constants.POOL_INTERFACE,  # pyright: ignore
+                "VolumeKeyLoaded",
+            ),
+        ):
+            TEST_RUNNER(self._MENU)