X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/240f4b16cb0cd57db5661561fecb4f932eb043bb..7affb40735592998dc047f216b48f9b771e4df1a:/libtests/t-heap.c

diff --git a/libtests/t-heap.c b/libtests/t-heap.c
new file mode 100644
index 0000000..54d052a
--- /dev/null
+++ b/libtests/t-heap.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of DisOrder.
+ * Copyright (C) 2005, 2007, 2008 Richard Kettlewell
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+#include "test.h"
+
+/** @brief Less-than comparison function for integer heap */
+static inline int int_lt(int a, int b) { return a < b; }
+
+/** @struct iheap
+ * @brief A heap with @c int elements */
+HEAP_TYPE(iheap, int, int_lt);
+HEAP_DEFINE(iheap, int, int_lt);
+
+/** @brief Tests for @ref heap.h */
+static void test_heap(void) {
+  struct iheap h[1];
+  int n;
+  int last = -1;
+
+  iheap_init(h);
+  for(n = 0; n < 1000; ++n)
+    iheap_insert(h, random() % 100);
+  for(n = 0; n < 1000; ++n) {
+    const int latest = iheap_remove(h);
+    if(last > latest)
+      fprintf(stderr, "should have %d <= %d\n", last, latest);
+    insist(last <= latest);
+    last = latest;
+  }
+}
+
+TEST(heap);
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+fill-column:79
+indent-tabs-mode:nil
+End:
+*/