diff --git a/tests/functional2/testlib/fixtures/file_helper.py b/tests/functional2/testlib/fixtures/file_helper.py
index 037ebaae8..040afa89c 100644
--- a/tests/functional2/testlib/fixtures/file_helper.py
+++ b/tests/functional2/testlib/fixtures/file_helper.py
@@ -2,6 +2,7 @@ import shutil
 from abc import ABC, abstractmethod
 from pathlib import Path
 from typing import Any
+from collections.abc import Callable, Iterable
 
 import pytest
 
@@ -67,16 +68,19 @@ class CopyFile(Fileish):
 
 
 class CopyTree(Fileish):
-    def __init__(self, tree_base: str | Path):
+    def __init__(
+        self, tree_base: str | Path, ignore: Callable[[str, list[str]], Iterable[str]] | None = None
+    ):
         """
         Declares a folder as a copy of an existing folder
         :param tree_base: base folder of the tree being copied
         """
         self.tree_base = tree_base
+        self.ignore = ignore
 
     def copy_to(self, path: Path, origin: Path):
         orig = self.tree_base if isinstance(self.tree_base, Path) else origin / self.tree_base
-        shutil.copytree(orig, path, dirs_exist_ok=True)
+        shutil.copytree(orig, path, dirs_exist_ok=True, ignore=self.ignore)
 
 
 class CopyTemplate(_ByContentFileish):
diff --git a/tests/functional2/testlib/utils.py b/tests/functional2/testlib/utils.py
index 737e8d9ad..7a8253673 100644
--- a/tests/functional2/testlib/utils.py
+++ b/tests/functional2/testlib/utils.py
@@ -55,16 +55,22 @@ def get_functional2_files(additional_files: FileDeclaration | None = None) -> Fi
 
 
 def get_functional2_files_with_testlib(
-    additional_files: FileDeclaration | None = None,
+    additional_files: FileDeclaration | None = None, no_tests: bool = True
 ) -> FileDeclaration:
     if additional_files is None:
         additional_files = {}
+    if no_tests:
+
+        def ignore(_: Any, names: list[str]) -> list[str]:
+            return [name for name in names if name.startswith("test_")]
+    else:
+        ignore = None
     return get_functional2_files(
         merge_file_declaration(
             {
                 "functional2": {
                     "conftest.py": CopyFile(functional2_base_folder / "conftest.py"),
-                    "testlib": CopyTree(functional2_base_folder / "testlib"),
+                    "testlib": CopyTree(functional2_base_folder / "testlib", ignore=ignore),
                 }
             },
             additional_files,