1/* GLib testing framework examples and tests
2 * Copyright (C) 2007 Imendio AB
3 * Authors: Tim Janik
4 *
5 * This work is provided "as is"; redistribution and modification
6 * in whole or in part, in any medium, physical or electronic is
7 * permitted without restriction.
8 *
9 * This work is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * In no event shall the authors or contributors be liable for any
14 * direct, indirect, incidental, special, exemplary, or consequential
15 * damages (including, but not limited to, procurement of substitute
16 * goods or services; loss of use, data, or profits; or business
17 * interruption) however caused and on any theory of liability, whether
18 * in contract, strict liability, or tort (including negligence or
19 * otherwise) arising in any way out of the use of this software, even
20 * if advised of the possibility of such damage.
21 */
22
23#include <glib/glib.h>
24#include <gio/gio.h>
25#include <stdlib.h>
26#include <string.h>
27
28static void
29test_read_chunks (void)
30{
31  const char *data1 = "abcdefghijklmnopqrstuvwxyz";
32  const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
33  const char *result = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
34  char buffer[128];
35  gsize bytes_read, pos, len, chunk_size;
36  GError *error = NULL;
37  GInputStream *stream;
38  gboolean res;
39
40  stream = g_memory_input_stream_new ();
41
42  g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
43                                  data1, -1, NULL);
44  g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
45                                  data2, -1, NULL);
46  len = strlen (data1) + strlen (data2);
47
48  for (chunk_size = 1; chunk_size < len - 1; chunk_size++)
49    {
50      pos = 0;
51      while (pos < len)
52        {
53          bytes_read = g_input_stream_read (stream, buffer, chunk_size, NULL, &error);
54          g_assert_no_error (error);
55          g_assert_cmpint (bytes_read, ==, MIN (chunk_size, len - pos));
56          g_assert (strncmp (buffer, result + pos, bytes_read) == 0);
57
58          pos += bytes_read;
59        }
60
61      g_assert_cmpint (pos, ==, len);
62      res = g_seekable_seek (G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, &error);
63      g_assert_cmpint (res, ==, TRUE);
64      g_assert_no_error (error);
65    }
66}
67
68int
69main (int   argc,
70      char *argv[])
71{
72  g_type_init ();
73  g_test_init (&argc, &argv, NULL);
74
75  g_test_add_func ("/memory-input-stream/read-chunks", test_read_chunks);
76
77  return g_test_run();
78}
79