* tests/priority_queue_unit_test.cc: New test.

tests/priority_queue_unit_test.cc

@@ -0,0 +1,105 @@
+/*
+ *  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 <stdio.h>
+#include <string.h>
+#include <grub/test.h>
+#include <grub/misc.h>
+#include <grub/priority_queue.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <queue>
+
+using namespace std;
+
+static int 
+compar (const void *a_, const void *b_)
+{
+  int a = *(int *) a_;
+  int b = *(int *) b_;
+  if (a < b)
+    return -1;
+  if (a > b)
+    return +1;
+  return 0;
+}
+
+static void
+priority_queue_test (void)
+{
+  priority_queue <int> pq;
+  grub_priority_queue_t pq2;
+  int counter;
+  int s = 0;
+  pq2 = grub_priority_queue_new (sizeof (int), compar);
+  if (!pq2)
+    {
+      grub_test_assert (0,
+			"priority queue: queue creating failed\n");
+      return;
+    }
+  srand (1);
+
+  for (counter = 0; counter < 1000000; counter++)
+    {
+      int op = rand () % 10;
+      if (s && *(int *) grub_priority_queue_top (pq2) != pq.top ())
+	{
+	  printf ("Error at %d\n", counter);
+	  grub_test_assert (0,
+			    "priority queue: error at %d\n", counter);
+	  return;
+	}
+      if (op < 3 && s)
+	{
+	  grub_priority_queue_pop (pq2);
+	  pq.pop ();
+	  s--;
+	}
+      else
+	{
+	  int v = rand ();
+	  pq.push (v);
+	  if (grub_priority_queue_push (pq2, &v) != 0)
+	    {
+	      grub_test_assert (0,
+				"priority queue: push failed");
+	      return;
+	    }
+	  s++;
+	}
+    }
+  while (s)
+    {
+      if (*(int *) grub_priority_queue_top (pq2) != pq.top ())
+	{
+	  grub_test_assert (0,
+			    "priority queue: Error at the end. %d elements remaining.\n", s);
+	  return;
+	}
+      grub_priority_queue_pop (pq2);
+      pq.pop ();
+      s--;
+    }
+  printf ("priority_queue: passed successfully\n");
+}
+
+GRUB_UNIT_TEST ("priority_queue_unit_test", priority_queue_test);