common: Add new function strlist_rev.

* common/strlist.c (strlist_rev): New function.
* common/t-strlist.c: New file.
* common/Makefile.am (common_sources): Add strlist.c and strlist.h.
(module_tests): Add t-strlist.
(t_strlist_LDADD): New variable.

--
Signed-off-by: Neal H. Walfield <[email protected]>

1 files changed, 82 insertions, 0 deletions

diff --git a/common/t-strlist.c b/common/t-strlist.c
new file mode 100644
index 000000000..b03390593
--- /dev/null
+++ b/common/t-strlist.c
@@ -0,0 +1,82 @@
+/* t-strlist.c - Regression tests for strist.c
+ * Copyright (C) 2015  g10 Code GmbH
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify it
+ * under the terms of either
+ *
+ *   - the GNU Lesser General Public License as published by the Free
+ *     Software Foundation; either version 3 of the License, or (at
+ *     your option) any later version.
+ *
+ * or
+ *
+ *   - the GNU General Public License as published by the Free
+ *     Software Foundation; either version 2 of the License, or (at
+ *     your option) any later version.
+ *
+ * or both in parallel, as here.
+ *
+ * GnuPG 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 copies of the GNU General Public License
+ * and the GNU Lesser General Public License along with this program;
+ * if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <string.h>
+
+#include "strlist.h"
+
+#include "t-support.h"
+
+static void
+test_strlist_rev (void)
+{
+  strlist_t s = NULL;
+
+  /* Reversing an empty list should yield the empty list.  */
+  if (! (strlist_rev (&s) == NULL))
+    fail (1);
+
+  add_to_strlist (&s, "1");
+  add_to_strlist (&s, "2");
+  add_to_strlist (&s, "3");
+
+  if (strcmp (s->d, "3") != 0)
+    fail (2);
+  if (strcmp (s->next->d, "2") != 0)
+    fail (2);
+  if (strcmp (s->next->next->d, "1") != 0)
+    fail (2);
+  if (s->next->next->next)
+    fail (2);
+
+  strlist_rev (&s);
+
+  if (strcmp (s->d, "1") != 0)
+    fail (2);
+  if (strcmp (s->next->d, "2") != 0)
+    fail (2);
+  if (strcmp (s->next->next->d, "3") != 0)
+    fail (2);
+  if (s->next->next->next)
+    fail (2);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  (void)argc;
+  (void)argv;
+
+  test_strlist_rev ();
+
+  return 0;
+}