gstreamer/check/gst/gstiterator.c

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/* GStreamer
* Copyright (C) 2005 Andy Wingo <wingo@pobox.com>
*
* gstiterator.c: Unit test for iterators
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "../gstcheck.h"
static GList *
make_list_of_ints (gint n)
{
GList *ret = NULL;
gint i;
for (i = 0; i < n; i++)
ret = g_list_prepend (ret, GINT_TO_POINTER (i));
return g_list_reverse (ret);
}
#define NUM_ELEMENTS 10
GST_START_TEST (test_manual_iteration)
{
GList *l;
guint32 cookie = 0;
GMutex *m;
GstIterator *iter;
GstIteratorResult res;
gpointer item;
gint i = 0;
l = make_list_of_ints (NUM_ELEMENTS);
m = g_mutex_new ();
iter = gst_iterator_new_list (m, &cookie, &l, NULL, NULL, NULL);
g_return_if_fail (iter != NULL);
while (1) {
res = gst_iterator_next (iter, &item);
if (i < NUM_ELEMENTS) {
g_return_if_fail (res == GST_ITERATOR_OK);
g_return_if_fail (GPOINTER_TO_INT (item) == i);
i++;
continue;
} else {
g_return_if_fail (res == GST_ITERATOR_DONE);
break;
}
}
gst_iterator_free (iter);
}
GST_END_TEST
GST_START_TEST (test_resync)
{
GList *l;
guint32 cookie = 0;
GMutex *m;
GstIterator *iter;
GstIteratorResult res;
gpointer item;
gint i = 0;
gboolean hacked_list = FALSE;
l = make_list_of_ints (NUM_ELEMENTS);
m = g_mutex_new ();
iter = gst_iterator_new_list (m, &cookie, &l, NULL, NULL, NULL);
g_return_if_fail (iter != NULL);
while (1) {
res = gst_iterator_next (iter, &item);
if (i < NUM_ELEMENTS / 2) {
g_return_if_fail (res == GST_ITERATOR_OK);
g_return_if_fail (GPOINTER_TO_INT (item) == i);
i++;
continue;
} else if (!hacked_list) {
/* here's where we test resync */
g_return_if_fail (res == GST_ITERATOR_OK);
l = g_list_prepend (l, GINT_TO_POINTER (-1));
cookie++;
hacked_list = TRUE;
continue;
} else {
g_return_if_fail (res == GST_ITERATOR_RESYNC);
gst_iterator_resync (iter);
res = gst_iterator_next (iter, &item);
g_return_if_fail (res == GST_ITERATOR_OK);
g_return_if_fail (GPOINTER_TO_INT (item) == -1);
break;
}
}
gst_iterator_free (iter);
}
GST_END_TEST static gboolean
add_fold_func (gpointer item, GValue * ret, gpointer user_data)
{
g_value_set_int (ret, g_value_get_int (ret) + GPOINTER_TO_INT (item));
return TRUE;
}
GST_START_TEST (test_fold)
{
GList *l;
guint32 cookie = 0;
GMutex *m;
GstIterator *iter;
GstIteratorResult res;
gint i, expected;
GValue ret = { 0, };
l = make_list_of_ints (NUM_ELEMENTS);
m = g_mutex_new ();
iter = gst_iterator_new_list (m, &cookie, &l, NULL, NULL, NULL);
g_return_if_fail (iter != NULL);
expected = 0;
for (i = 0; i < NUM_ELEMENTS; i++)
expected += i;
g_value_init (&ret, G_TYPE_INT);
g_value_set_int (&ret, 0);
res = gst_iterator_fold (iter, add_fold_func, &ret, NULL);
g_return_if_fail (res == GST_ITERATOR_DONE);
g_return_if_fail (g_value_get_int (&ret) == expected);
}
GST_END_TEST Suite *
gstiterator_suite (void)
{
Suite *s = suite_create ("GstIterator");
TCase *tc_chain = tcase_create ("correctness");
tcase_set_timeout (tc_chain, 0);
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_manual_iteration);
tcase_add_test (tc_chain, test_resync);
tcase_add_test (tc_chain, test_fold);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = gstiterator_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}