deepcopy to isolate changes

Author: snopoke

taskbadger/mug.py

@@ -1,6 +1,7 @@
 import dataclasses
 from contextlib import ContextDecorator
 from contextvars import ContextVar
+from copy import deepcopy
 from typing import Union
 
 from taskbadger.internal import AuthenticatedClient
@@ -87,8 +88,8 @@ def __init__(self):
 
     def __enter__(self):
         self.stack.append((self.context, self.tags))
-        self.context = self.context.copy()
-        self.tags = self.tags.copy()
+        self.context = deepcopy(self.context)
+        self.tags = deepcopy(self.tags)
         return self
 
     def __exit__(self, *args):
@@ -116,17 +117,19 @@ def current(cls):
 
 class Badger(metaclass=MugMeta):
     def __init__(self, settings_or_mug=None):
+        self._session = ReentrantSession()
+        self._scope = Scope()
+
         if isinstance(settings_or_mug, Badger):
             self.settings = settings_or_mug.settings
+            self._scope.context = deepcopy(settings_or_mug._scope.context)
+            self._scope.tags = deepcopy(settings_or_mug._scope.tags)
         else:
             self.settings = settings_or_mug
 
-        self._session = ReentrantSession()
-        self._scope = Scope()
-
     def bind(self, settings, tags=None):
         self.settings = settings
-        self.scope().tags = tags or {}
+        self._scope.tags = tags or {}
 
     def session(self) -> ReentrantSession:
         return self._session

tests/test_session.py renamed to tests/test_mug.py

@@ -9,7 +9,7 @@
 
 @pytest.fixture(autouse=True)
 def _bind_settings():
-    Badger.current.bind(Settings("https://taskbadger.net", "token", "org", "proj"))
+    Badger.current.bind(Settings("https://taskbadger.net", "token", "org", "proj"), tags={"env": "test"})
 
 
 def test_session_singleton():
@@ -19,6 +19,8 @@ def test_session_singleton():
     assert session.stack == []
     assert session == Badger.current.session()
 
+    assert Badger.current.scope().tags == {"env": "test"}
+
 
 def test_session_global():
     session = Session()
@@ -90,3 +92,10 @@ def run(self):
         with session as client:
             assert client is not None
             self.clients.append(client)
+
+        assert Badger.current.scope().tags == {"env": "test"}
+        with Badger.current.scope() as scope:
+            scope.tag({"thread": self.name})
+            assert scope.tags == {"env": "test", "thread": self.name}
+
+        assert Badger.current.scope().tags == {"env": "test"}

tests/test_scope.py

@@ -22,19 +22,21 @@ def test_scope_context():
     with scope:
         assert scope.stack == [({}, {})]
         scope.context["foo"] = "bar"
+        scope.context["nit"] = [1]
         scope.tags["name"] = "value"
         with scope:
-            assert scope.stack == [({}, {}), ({"foo": "bar"}, {"name": "value"})]
-            assert scope.context == {"foo": "bar"}
+            assert scope.stack == [({}, {}), ({"foo": "bar", "nit": [1]}, {"name": "value"})]
+            assert scope.context == {"foo": "bar", "nit": [1]}
             assert scope.tags == {"name": "value"}
             scope.context["bar"] = "bazz"
+            scope.context["nit"].append(2)
             scope.tags["bar"] = "bazz"
             with scope:
-                assert scope.context == {"foo": "bar", "bar": "bazz"}
+                assert scope.context == {"foo": "bar", "bar": "bazz", "nit": [1, 2]}
                 assert scope.tags == {"name": "value", "bar": "bazz"}
                 scope.context.clear()
                 scope.tags.clear()
-        assert scope.context == {"foo": "bar"}
+        assert scope.context == {"foo": "bar", "nit": [1]}
         assert scope.tags == {"name": "value"}
         assert scope.stack == [({}, {})]
     assert scope.context == {}