modify SubController terminology in docstrings

Author: hyperrealist

src/fastcs/controller.py

@@ -51,7 +51,7 @@ def path(self) -> list[str]:
 
     def set_path(self, path: list[str]):
         if self._path:
-            raise ValueError(f"SubController is already registered under {self.path}")
+            raise ValueError(f"sub controller is already registered under {self.path}")
 
         self._path = path
 
@@ -101,7 +101,7 @@ class method and a controller instance, so that it can be called from any
     def register_sub_controller(self, name: str, sub_controller: Controller):
         if name in self.__sub_controller_tree.keys():
             raise ValueError(
-                f"Controller {self} already has a SubController registered as {name}"
+                f"Controller {self} already has a sub controller registered as {name}"
             )
 
         self.__sub_controller_tree[name] = sub_controller
@@ -110,7 +110,7 @@ def register_sub_controller(self, name: str, sub_controller: Controller):
         if isinstance(sub_controller.root_attribute, Attribute):
             if name in self.attributes:
                 raise TypeError(
-                    f"Cannot set SubController `{name}` root attribute "
+                    f"Cannot set sub controller `{name}` root attribute "
                     f"on the parent controller `{type(self).__name__}` "
                     f"as it already has an attribute of that name."
                 )

src/fastcs/controller_api.py

@@ -7,7 +7,7 @@
 
 @dataclass
 class ControllerAPI:
-    """Attributes, bound methods and sub APIs of a `Controller` / `SubController`"""
+    """Attributes, bound methods and sub APIs of a `Controller`"""
 
     path: list[str] = field(default_factory=list)
     """Path within controller tree (empty if this is the root)"""

tests/assertable_controller.py

@@ -110,7 +110,7 @@ def _assert_method(self, path: list[str], method: Literal["get", "process", ""])
         """
         queue = copy.deepcopy(path)
 
-        # Navigate to subcontroller
+        # Navigate to sub controller
         controller_api = self
         item_name = queue.pop(-1)
         for item in queue:

tests/test_controller.py

@@ -19,12 +19,12 @@ def test_controller_nesting():
     assert sub_controller.get_sub_controllers() == {"b": sub_sub_controller}
 
     with pytest.raises(
-        ValueError, match=r"Controller .* already has a SubController registered as .*"
+        ValueError, match=r"Controller .* already has a sub controller registered as .*"
     ):
         controller.register_sub_controller("a", Controller())
 
     with pytest.raises(
-        ValueError, match=r"SubController is already registered under .*"
+        ValueError, match=r"sub controller is already registered under .*"
     ):
         controller.register_sub_controller("c", sub_controller)
 
@@ -106,7 +106,7 @@ class FailingController(SomeController):
     with pytest.raises(
         TypeError,
         match=(
-            "Cannot set SubController `sub_controller` root attribute "
+            "Cannot set sub controller `sub_controller` root attribute "
             "on the parent controller `FailingController` as it already "
             "has an attribute of that name."
         ),