more tests

tests/test_dagset.py

@@ -99,6 +99,14 @@ class TestDAGSetCallbacks:
             assert len(added) == 1
 
         def test_on_remove_callback(self) -> None:
+            removed: list[int] = []
+            s = DAGSetView({1, 2, 3})
+            s.on_remove = lambda v: removed.append(v)
+            s.remove(2)
+            assert 2 in removed
+            assert len(removed) == 1
+
+        def test_on_discard_callback(self) -> None:
             removed: list[int] = []
             s = DAGSetView({1, 2, 3})
             s.on_remove = lambda v: removed.append(v)
@@ -136,6 +144,26 @@ class TestDAGSetCallbacks:
             assert 2 in removed
             assert 3 in removed
 
+        def test_iand_triggers_callbacks(self) -> None:
+            removed: list[int] = []
+            s = DAGSetView({1, 2, 3, 4})
+            s.on_remove = lambda v: removed.append(v)
+            s &= {2, 3}
+            assert 1 in removed
+            assert 4 in removed
+            assert len(removed) == 2
+
+        def test_ixor_triggers_callbacks(self) -> None:
+            added: list[int] = []
+            removed: list[int] = []
+            s = DAGSetView({1, 2, 3})
+            s.on_add = lambda v: added.append(v)
+            s.on_remove = lambda v: removed.append(v)
+            s ^= {3, 4, 5}
+            assert 3 in removed
+            assert 4 in added
+            assert 5 in added
+
 
 class TestDAGSetInPlaceOperators:
     """Test in-place set operators."""