* grub-core/tests/setjmp_test.c: New test.

grub-core/tests/setjmp_test.c

@@ -0,0 +1,74 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/test.h>
+#include <grub/dl.h>
+#include <grub/setjmp.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_jmp_buf jmp_point;
+static int expected, ctr;
+
+static void
+jmp0 (void)
+{
+  grub_longjmp (jmp_point, 0);
+}
+
+static void
+jmp1 (void)
+{
+  grub_longjmp (jmp_point, 1);
+}
+
+static void
+jmp2 (void)
+{
+  grub_longjmp (jmp_point, 2);
+}
+
+static void
+setjmp_test (void)
+{
+  int val;
+
+  expected = 0;
+  val = grub_setjmp (jmp_point);
+
+  grub_test_assert (val == expected, "setjmp returned %d instead of %d",
+		    val, expected);
+  switch (ctr++)
+    {
+    case 0:
+      expected = 1;
+      jmp0 ();
+    case 1:
+      expected = 1;
+      jmp1 ();
+    case 2:
+      expected = 2;
+      jmp2 ();
+    case 3:
+      return;
+    }
+  grub_test_assert (0, "setjmp didn't return enough times");
+}
+
+/* Register example_test method as a functional test.  */
+GRUB_FUNCTIONAL_TEST (setjmp_test, setjmp_test);