Improve test coverage.

racad.py

@@ -24,6 +24,12 @@ def visit_ClassDef(self, node: ast.ClassDef) -> None:
             self.visit(stmt)
         # Reset the last attribute name after processing the class
         self.last_attr_name = None
+
+    def _store_target_attr_name(self, target: ast.expr) -> None:
+        if isinstance(target, ast.Name):
+            self.last_attr_name = target.id
+        else:
+            self.last_attr_name = None
 
     def visit_Assign(self, node: ast.Assign) -> None:
         """Visit an assignment node.
@@ -32,9 +38,10 @@ def visit_Assign(self, node: ast.Assign) -> None:
             node: The assignment AST node to visit.
         """
         # Handle simple assignments
-        if len(node.targets) == 1 and isinstance(node.targets[0], ast.Name):
-            self.last_attr_name = node.targets[0].id
+        if len(node.targets) == 1: 
+            self._store_target_attr_name(node.targets[0])
         else:
+            # Ignore multi assignments such as `a = b = 5`
             self.last_attr_name = None
 
     def visit_AnnAssign(self, node: ast.AnnAssign) -> None:
@@ -44,10 +51,7 @@ def visit_AnnAssign(self, node: ast.AnnAssign) -> None:
             node: The annotated assignment AST node to visit.
         """
         # Handle annotated assignments
-        if isinstance(node.target, ast.Name):
-            self.last_attr_name = node.target.id
-        else:
-            self.last_attr_name = None
+        self._store_target_attr_name(node.target)
 
     def visit_Expr(self, node: ast.Expr) -> None:
         """Visit an expression node.

test_racad.py

@@ -166,7 +166,10 @@ class MyWrongClass:
             """Hard-coding length."""
 
             b, c = 1, 2
-            """Document two at once."""
+            """Document unpacked tuple at once."""
+
+            d = e = 3
+            """Document multiple targets at once."""
 
         docs = get_attribute_docstrings(MyWrongClass)
         self.assertEqual(docs, {})
@@ -194,15 +197,15 @@ class Parent:
             a = 5
             """This is the docstring for a."""
 
-        if sys.version_info < (3, 9):
+        if sys.version_info < (3, 9): # pragma: no cover
             # Before python 3.9, getsource always returned the first class with
             # the given name. In this case, it would return the class of a previous
             # test.
             class Child_(Parent):
                 a = 6
                 """This is the overridden docstring."""
             Child = Child_
-        else:
+        else: # pragma: no cover
             class Child(Parent):
                 a = 6
                 """This is the overridden docstring."""
@@ -211,7 +214,3 @@ class Child(Parent):
         self.assertEqual(docs['a'], 'This is the overridden docstring.')
         doc_a = get_attribute_docstring(Child, 'a', search_bases=True)
         self.assertEqual(doc_a, 'This is the overridden docstring.')
-
-
-if __name__ == '__main__':
-    unittest.main()