From e481164258f706bac2bfbbac0d7599dd6a92a2cb Mon Sep 17 00:00:00 2001
From: Veloman Yunkan <veloman.yunkan@gmail.com>
Date: Sun, 22 Feb 2026 11:34:03 +0400
Subject: [PATCH] Extracted test/testing_tools.h

---
 test/name_mapper.cpp | 24 +++----------------
 test/testing_tools.h | 57 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 21 deletions(-)
 create mode 100644 test/testing_tools.h

diff --git a/test/name_mapper.cpp b/test/name_mapper.cpp
index 371cc9d5..07087b37 100644
--- a/test/name_mapper.cpp
+++ b/test/name_mapper.cpp
@@ -2,6 +2,9 @@
 
 #include "../include/library.h"
 #include "../include/manager.h"
+#include "testing_tools.h"
+using namespace kiwix::testing;
+
 #include "gtest/gtest.h"
 
 namespace
@@ -58,27 +61,6 @@ class NameMapperTest : public ::testing::Test {
   std::shared_ptr<kiwix::Library> lib;
 };
 
-class CapturedStderr
-{
-  std::ostringstream buffer;
-  std::streambuf* const sbuf;
-public:
-  CapturedStderr()
-    : sbuf(std::cerr.rdbuf())
-  {
-    std::cerr.rdbuf(buffer.rdbuf());
-  }
-
-  CapturedStderr(const CapturedStderr&) = delete;
-
-  ~CapturedStderr()
-  {
-    std::cerr.rdbuf(sbuf);
-  }
-
-  operator std::string() const { return buffer.str(); }
-};
-
 #if _WIN32
 const std::string ZERO_FOUR_NAME_CONFLICT_MSG =
     "Path collision: 'C:\\data\\zero_four_2021-10.zim' and"
diff --git a/test/testing_tools.h b/test/testing_tools.h
new file mode 100644
index 00000000..c09b6efd
--- /dev/null
+++ b/test/testing_tools.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2026 Veloman Yunkan
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU  General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef LIBKIWIX_TESTING_TOOLS_H
+#define LIBKIWIX_TESTING_TOOLS_H
+
+#include <sstream>
+#include <iostream>
+
+namespace kiwix
+{
+
+namespace testing
+{
+
+class CapturedStderr
+{
+  std::ostringstream buffer;
+  std::streambuf* const sbuf;
+public:
+  CapturedStderr()
+    : sbuf(std::cerr.rdbuf())
+  {
+    std::cerr.rdbuf(buffer.rdbuf());
+  }
+
+  CapturedStderr(const CapturedStderr&) = delete;
+
+  ~CapturedStderr()
+  {
+    std::cerr.rdbuf(sbuf);
+  }
+
+  operator std::string() const { return buffer.str(); }
+};
+
+} // namespace testing
+
+} // namespace kiwix
+
+#endif // LIBKIWIX_TESTING_TOOLS_H