memory-output-stream.c

this is a glib for c language

/* GLib testing framework examples and tests
 * Copyright (C) 2008 Red Hat, Inc.
 * Author: Matthias Clasen
 *
 * This work is provided "as is"; redistribution and modification
 * in whole or in part, in any medium, physical or electronic is
 * permitted without restriction.
 *
 * This work 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.
 *
 * In no event shall the authors or contributors be liable for any
 * direct, indirect, incidental, special, exemplary, or consequential
 * damages (including, but not limited to, procurement of substitute
 * goods or services; loss of use, data, or profits; or business
 * interruption) however caused and on any theory of liability, whether
 * in contract, strict liability, or tort (including negligence or
 * otherwise) arising in any way out of the use of this software, even
 * if advised of the possibility of such damage.
 */
#include <glib/glib.h>
#include <gio/gio.h>
#include <stdlib.h>
#include <string.h>

static void
test_truncate (void)
{
  GOutputStream *mo;
  GDataOutputStream *o;
  int i;
  GError *error = NULL;

  g_test_bug ("540423");

  mo = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
  o = g_data_output_stream_new (mo);
  for (i = 0; i < 1000; i++)
    {
      g_data_output_stream_put_byte (o, 1, NULL, &error);
      g_assert (error == NULL);
    }
  g_seekable_truncate (G_SEEKABLE (mo), 0, NULL, &error);
  g_assert (error == NULL);
  for (i = 0; i < 2000; i++)
    {
      g_data_output_stream_put_byte (o, 1, NULL, &error);
      g_assert (error == NULL);
    }

  g_object_unref (o);
  g_object_unref (mo);
}

static void
test_data_size (void)
{
  GOutputStream *mo;
  GDataOutputStream *o;
  int pos;

  g_test_bug ("540459");

  mo = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
  o = g_data_output_stream_new (mo);
  g_data_output_stream_put_byte (o, 1, NULL, NULL);
  pos = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mo));
  g_assert_cmpint (pos, ==, 1);

  g_seekable_seek (G_SEEKABLE (mo), 0, G_SEEK_CUR, NULL, NULL);
  pos = g_seekable_tell (G_SEEKABLE (mo));
  g_assert_cmpint (pos, ==, 1);

  g_object_unref (o);
  g_object_unref (mo);
}

int
main (int   argc,
      char *argv[])
{
  g_type_init ();
  g_test_init (&argc, &argv, NULL);
  g_test_bug_base ("http://bugzilla.gnome.org/");

  g_test_add_func ("/memory-output-stream/truncate", test_truncate);
  g_test_add_func ("/memory-output-stream/get-data-size", test_data_size);

  return g_test_run();
}