fix for conftest issue

Author: aseembits93

codeflash/code_utils/code_replacer.py

@@ -8,6 +8,7 @@
 import isort
 import libcst as cst
 import libcst.matchers as m
+from libcst.metadata import PositionProvider
 
 from codeflash.cli_cmds.console import logger
 from codeflash.code_utils.code_extractor import add_global_assignments, add_needed_imports_from_module
@@ -37,6 +38,34 @@ def normalize_code(code: str) -> str:
     return ast.unparse(normalize_node(ast.parse(code)))
 
 
+class AddRequestArgument(cst.CSTTransformer):
+    METADATA_DEPENDENCIES = (PositionProvider,)
+
+    def leave_FunctionDef(self, original_node: cst.FunctionDef, updated_node: cst.FunctionDef) -> cst.FunctionDef:  # noqa: ARG002
+        args = updated_node.params.params
+        arg_names = {arg.name.value for arg in args}
+
+        # Skip if 'request' is already present
+        if "request" in arg_names:
+            return updated_node
+
+        # Create a new 'request' param
+        request_param = cst.Param(name=cst.Name("request"))
+
+        # Add 'request' as the first argument (after 'self' or 'cls' if needed)
+        if args:
+            first_arg = args[0].name.value
+            if first_arg in {"self", "cls"}:
+                new_params = [args[0], request_param] + list(args[1:])  # noqa: RUF005
+            else:
+                new_params = [request_param] + list(args)  # noqa: RUF005
+        else:
+            new_params = [request_param]
+
+        new_param_list = updated_node.params.with_changes(params=new_params)
+        return updated_node.with_changes(params=new_param_list)
+
+
 class PytestMarkAdder(cst.CSTTransformer):
     """Transformer that adds pytest marks to test functions."""
 
@@ -139,8 +168,10 @@ def leave_FunctionDef(self, original_node: cst.FunctionDef, updated_node: cst.Fu
 def disable_autouse(test_path: Path) -> str:
     file_content = test_path.read_text(encoding="utf-8")
     module = cst.parse_module(file_content)
+    add_request_argument = AddRequestArgument()
     disable_autouse_fixture = AutouseFixtureModifier()
-    modified_module = module.visit(disable_autouse_fixture)
+    modified_module = module.visit(add_request_argument)
+    modified_module = modified_module.visit(disable_autouse_fixture)
     test_path.write_text(modified_module.code, encoding="utf-8")
     return file_content