Add reset API function (#51)

* Add reset API function

* pylint

synology_dsm/synology_dsm.py

@@ -273,6 +273,34 @@ class SynologyDSM(object):
             data = self.get(SynoStorage.API_KEY, "load_info")
             self._storage.update(data)
 
+    def reset(self, api):
+        """Reset an API to avoid fetching in on update."""
+        if isinstance(api, str):
+            if api in ("information", SynoDSMInformation.API_KEY):
+                return False
+            if hasattr(self, "_" + api):
+                setattr(self, "_" + api, None)
+                return True
+            if api == SynoCoreSecurity.API_KEY:
+                self._security = None
+                return True
+            if api == SynoCoreUtilization.API_KEY:
+                self._utilisation = None
+                return True
+            if api == SynoStorage.API_KEY:
+                self._storage = None
+                return True
+        if isinstance(api, SynoCoreSecurity):
+            self._security = None
+            return True
+        if isinstance(api, SynoCoreUtilization):
+            self._utilisation = None
+            return True
+        if isinstance(api, SynoStorage):
+            self._storage = None
+            return True
+        return False
+
     @property
     def information(self):
         """Gets NAS informations."""

tests/test_synology_dsm.py

@@ -2,6 +2,8 @@
 """Synology DSM tests."""
 from unittest import TestCase
 
+from synology_dsm.api.core.security import SynoCoreSecurity
+from synology_dsm.api.dsm.information import SynoDSMInformation
 from synology_dsm.exceptions import (
     SynologyDSMRequestException,
     SynologyDSMAPINotExistsException,
@@ -188,6 +190,54 @@ class TestSynologyDSM(TestCase):
                 },
             )
 
+    def test_reset_str_attr(self):
+        """Test reset with string attr."""
+        assert not self.api._security
+        assert self.api.security
+        assert self.api._security
+        assert self.api.reset("security")
+        assert not self.api._security
+
+    def test_reset_str_key(self):
+        """Test reset with string API key."""
+        assert not self.api._security
+        assert self.api.security
+        assert self.api._security
+        assert self.api.reset(SynoCoreSecurity.API_KEY)
+        assert not self.api._security
+
+    def test_reset_object(self):
+        """Test reset with object."""
+        assert not self.api._security
+        assert self.api.security
+        assert self.api._security
+        assert self.api.reset(self.api.security)
+        assert not self.api._security
+
+    def test_reset_str_attr_information(self):
+        """Test reset with string information attr (should not be reset)."""
+        assert not self.api._information
+        assert self.api.information
+        assert self.api._information
+        assert not self.api.reset("information")
+        assert self.api._information
+
+    def test_reset_str_key_information(self):
+        """Test reset with string information API key (should not be reset)."""
+        assert not self.api._information
+        assert self.api.information
+        assert self.api._information
+        assert not self.api.reset(SynoDSMInformation.API_KEY)
+        assert self.api._information
+
+    def test_reset_object_information(self):
+        """Test reset with information object (should not be reset)."""
+        assert not self.api._information
+        assert self.api.information
+        assert self.api._information
+        assert not self.api.reset(self.api.information)
+        assert self.api._information
+
     def test_information(self):
         """Test information."""
         assert self.api.information