--- /dev/null
+/* Unit tests for the utils.c file.
+
+ Copyright (C) 2018 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 "utils.h"
+#include "selftest.h"
+
+namespace selftests {
+namespace utils {
+
+static void
+test_substitute_path_component ()
+{
+ auto test = [] (std::string s, const char *from, const char *to,
+ const char *expected)
+ {
+ char *temp = xstrdup (s.c_str ());
+ substitute_path_component (&temp, from, to);
+ SELF_CHECK (strcmp (temp, expected) == 0);
+ xfree (temp);
+ };
+
+ test ("/abc/$def/g", "abc", "xyz", "/xyz/$def/g");
+ test ("abc/$def/g", "abc", "xyz", "xyz/$def/g");
+ test ("/abc/$def/g", "$def", "xyz", "/abc/xyz/g");
+ test ("/abc/$def/g", "g", "xyz", "/abc/$def/xyz");
+ test ("/abc/$def/g", "ab", "xyz", "/abc/$def/g");
+ test ("/abc/$def/g", "def", "xyz", "/abc/$def/g");
+ test ("/abc/$def/g", "abc", "abc", "/abc/$def/g");
+ test ("/abc/$def/g", "abc", "", "//$def/g");
+ test ("/abc/$def/g", "abc/$def", "xyz", "/xyz/g");
+ test ("/abc/$def/abc", "abc", "xyz", "/xyz/$def/xyz");
+}
+
+}
+}
+
+void
+_initialize_utils_selftests ()
+{
+ selftests::register_test ("substitute_path_component",
+ selftests::utils::test_substitute_path_component);
+}