+/* Self tests for path_join for GDB, the GNU debugger.
+
+ Copyright (C) 2022 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ 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
+ (at your option) 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, see <http://www.gnu.org/licenses/>. */
+
+#include "defs.h"
+#include "gdbsupport/pathstuff.h"
+#include "gdbsupport/selftest.h"
+
+namespace selftests {
+namespace path_join {
+
+template <typename ...Args>
+static void
+test_one (const char *expected, Args... paths)
+{
+ std::string actual = ::path_join (paths...);
+
+ SELF_CHECK (actual == expected);
+}
+
+/* Test path_join. */
+
+static void
+test ()
+{
+ test_one ("/foo/bar", "/foo", "bar");
+ test_one ("/bar", "/", "bar");
+ test_one ("foo/bar/", "foo", "bar", "");
+ test_one ("foo", "", "foo");
+ test_one ("foo/bar", "foo", "", "bar");
+ test_one ("foo/", "foo", "");
+ test_one ("foo/", "foo/", "");
+
+ test_one ("D:/foo/bar", "D:/foo", "bar");
+ test_one ("D:/foo/bar", "D:/foo/", "bar");
+
+#if defined(_WIN32)
+ /* The current implementation doesn't recognize backslashes as directory
+ separators on Unix-like systems, so only run these tests on Windows. If
+ we ever switch our implementation to use std::filesystem::path, they
+ should work anywhere, in theory. */
+ test_one ("D:\\foo/bar", "D:\\foo", "bar");
+ test_one ("D:\\foo\\bar", "D:\\foo\\", "bar");
+ test_one ("\\\\server\\dir\\file", "\\\\server\\dir\\", "file");
+ test_one ("\\\\server\\dir/file", "\\\\server\\dir", "file");
+#endif /* _WIN32 */
+}
+
+}
+}
+
+void _initialize_path_join_selftests ();
+void
+_initialize_path_join_selftests ()
+{
+ selftests::register_test ("path_join",
+ selftests::path_join::test);
+}