unittests: Add a helper for copying source trees
This is a useful thing to do when a test needs to modify the source
tree, as it prevents races between tests.
diff --git a/unittests/baseplatformtests.py b/unittests/baseplatformtests.py
index 6125ed9..93bfc89 100644
--- a/unittests/baseplatformtests.py
+++ b/unittests/baseplatformtests.py
@@ -1,6 +1,8 @@
# SPDX-License-Identifier: Apache-2.0
# Copyright 2016-2021 The Meson development team
+# Copyright © 2024 Intel Corporation
+from __future__ import annotations
from pathlib import PurePath
from unittest import mock, TestCase, SkipTest
import json
@@ -9,6 +11,7 @@
import re
import subprocess
import sys
+import shutil
import tempfile
import typing as T
@@ -492,3 +495,23 @@
def assertLength(self, val, length):
assert len(val) == length, f'{val} is not length {length}'
+
+ def copy_srcdir(self, srcdir: str) -> str:
+ """Copies a source tree and returns that copy.
+
+ ensures that the copied tree is deleted after running.
+
+ :param srcdir: The locaiton of the source tree to copy
+ :return: The location of the copy
+ """
+ dest = tempfile.mkdtemp()
+ self.addCleanup(windows_proof_rmtree, dest)
+
+ # shutil.copytree expects the destinatin directory to not exist, Once
+ # python 3.8 is required the `dirs_exist_ok` parameter negates the need
+ # for this
+ dest = os.path.join(dest, 'subdir')
+
+ shutil.copytree(srcdir, dest)
+
+ return dest
