New APIs: guestfs_first_private, guestfs_next_private to walk over

[libguestfs.git] / capitests / test-private-data.c

diff --git a/capitests/test-private-data.c b/capitests/test-private-data.c
new file mode 100644 (file)
index 0000000..fad88b5
--- /dev/null
+++ b/capitests/test-private-data.c
@@ -0,0 +1,85 @@
+/* libguestfs
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Test aspects of the private data area API. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include "guestfs.h"
+
+#define PREFIX "test_"
+
+int
+main (int argc, char *argv[])
+{
+  guestfs_h *g;
+  const char *key;
+  void *data;
+  size_t count;
+
+  g = guestfs_create ();
+  if (g == NULL) {
+    fprintf (stderr, "failed to create handle\n");
+    exit (EXIT_FAILURE);
+  }
+
+  guestfs_set_private (g, PREFIX "a", (void *) 1);
+  guestfs_set_private (g, PREFIX "b", (void *) 2);
+  guestfs_set_private (g, PREFIX "c", (void *) 3);
+  guestfs_set_private (g, PREFIX "a", (void *) 4); /* overwrites previous */
+
+  /* Check we can fetch keys. */
+  assert (guestfs_get_private (g, PREFIX "a") == (void *) 4);
+  assert (guestfs_get_private (g, PREFIX "b") == (void *) 2);
+  assert (guestfs_get_private (g, PREFIX "c") == (void *) 3);
+  assert (guestfs_get_private (g, PREFIX "d") == NULL);
+
+  /* Check we can count keys by iterating. */
+  count = 0;
+  data = guestfs_first_private (g, &key);
+  while (data != NULL) {
+    if (strncmp (key, PREFIX, strlen (PREFIX)) == 0)
+      count++;
+    data = guestfs_next_private (g, &key);
+  }
+  assert (count == 3);
+
+  /* Delete some keys. */
+  guestfs_set_private (g, PREFIX "a", NULL);
+  guestfs_set_private (g, PREFIX "b", NULL);
+
+  /* Count them again. */
+  count = 0;
+  data = guestfs_first_private (g, &key);
+  while (data != NULL) {
+    if (strncmp (key, PREFIX, strlen (PREFIX)) == 0)
+      count++;
+    data = guestfs_next_private (g, &key);
+  }
+  assert (count == 1);
+
+  guestfs_close (g);
+
+  exit (EXIT_SUCCESS);
+}