add unit test

evennia/commands/default/tests.py

@@ -1920,6 +1920,25 @@ class TestBuilding(BaseEvenniaCommandTest):
             building.CmdSpawn(), "/examine NO_EXISTS", "No prototype named 'NO_EXISTS' was found."
         )
 
+    def test_setattr_view_with_category(self):
+        """
+        Test checking attributes with a category, including nested attributes.
+        """
+        self.obj1.attributes.add("test", "value", category="cat")
+        self.call(
+            building.CmdSetAttribute(),
+            "Obj/test:cat",
+            "Attribute Obj/test [category:cat] = value",
+        )
+
+        # nested dict
+        self.obj1.attributes.add("testdict", {"key": "value"}, category="cat")
+        self.call(
+            building.CmdSetAttribute(),
+            "Obj/testdict['key']:cat",
+            "Attribute Obj/testdict['key'] [category:cat] = value",
+        )
+
 
 import evennia.commands.default.comms as cmd_comms  # noqa
 from evennia.comms.comms import DefaultChannel  # noqa