Mark system as unhealthy on OSError Bad message errors (#4750)

* Bad message error marks system as unhealthy

* Finish adding test cases for changes

* Rename test file for uniqueness

* bad_message to oserror_bad_message

* Omit some checks and check for network mounts

tests/host/test_apparmor_control.py

@@ -0,0 +1,60 @@
+"""Test host apparmor control."""
+
+import errno
+from pathlib import Path
+from unittest.mock import patch
+
+from pytest import raises
+
+from supervisor.coresys import CoreSys
+from supervisor.exceptions import HostAppArmorError
+
+
+async def test_load_profile_error(coresys: CoreSys):
+    """Test error loading apparmor profile."""
+    test_path = Path("test")
+    with patch("supervisor.host.apparmor.validate_profile"), patch(
+        "supervisor.host.apparmor.shutil.copyfile", side_effect=(err := OSError())
+    ):
+        err.errno = errno.EBUSY
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.load_profile("test", test_path)
+        assert coresys.core.healthy is True
+
+        err.errno = errno.EBADMSG
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.load_profile("test", test_path)
+        assert coresys.core.healthy is False
+
+
+async def test_remove_profile_error(coresys: CoreSys, path_extern):
+    """Test error removing apparmor profile."""
+    coresys.host.apparmor._profiles.add("test")  # pylint: disable=protected-access
+    with patch("supervisor.host.apparmor.Path.unlink", side_effect=(err := OSError())):
+        err.errno = errno.EBUSY
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.remove_profile("test")
+        assert coresys.core.healthy is True
+
+        err.errno = errno.EBADMSG
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.remove_profile("test")
+        assert coresys.core.healthy is False
+
+
+async def test_backup_profile_error(coresys: CoreSys, path_extern):
+    """Test error while backing up apparmor profile."""
+    test_path = Path("test")
+    coresys.host.apparmor._profiles.add("test")  # pylint: disable=protected-access
+    with patch(
+        "supervisor.host.apparmor.shutil.copyfile", side_effect=(err := OSError())
+    ):
+        err.errno = errno.EBUSY
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.backup_profile("test", test_path)
+        assert coresys.core.healthy is True
+
+        err.errno = errno.EBADMSG
+        with raises(HostAppArmorError):
+            await coresys.host.apparmor.backup_profile("test", test_path)
+        assert coresys.core.healthy is False