gio/tests/memory-output-stream.c

   1 /* GLib testing framework examples and tests
   2  * Copyright (C) 2008 Red Hat, Inc.
   3  * Author: Matthias Clasen
   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 #include <glib/glib.h>
  23 #include <gio/gio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 static void
  28 test_truncate (void)
  29 {
  30   GOutputStream *mo;
  31   GDataOutputStream *o;
  32   int i;
  33   GError *error = NULL;
  34
  35   g_test_bug ("540423");
  36
  37   mo = g_memory_output_stream_new_resizable ();
  38   g_assert (g_seekable_can_truncate (G_SEEKABLE (mo)));
  39   o = g_data_output_stream_new (mo);
  40   for (i = 0; i < 1000; i++)
  41     {
  42       g_data_output_stream_put_byte (o, 1, NULL, &error);
  43       g_assert_no_error (error);
  44     }
  45   g_seekable_truncate (G_SEEKABLE (mo), 0, NULL, &error);
  46   g_assert_no_error (error);
  47   for (i = 0; i < 2000; i++)
  48     {
  49       g_data_output_stream_put_byte (o, 1, NULL, &error);
  50       g_assert_no_error (error);
  51     }
  52
  53   g_object_unref (o);
  54   g_object_unref (mo);
  55 }
  56
  57 static void
  58 test_seek (void)
  59 {
  60   GOutputStream *mo;
  61   GError *error;
  62
  63   mo = g_memory_output_stream_new (g_new (gchar, 100), 100, NULL, g_free);
  64
  65   g_assert (G_IS_SEEKABLE (mo));
  66   g_assert (g_seekable_can_seek (G_SEEKABLE (mo)));
  67
  68   error = NULL;
  69   g_assert (g_seekable_seek (G_SEEKABLE (mo), 26, G_SEEK_SET, NULL, &error));
  70   g_assert_no_error (error);
  71   g_assert_cmpint (g_seekable_tell (G_SEEKABLE (mo)), ==, 26);
  72
  73   g_assert (!g_seekable_seek (G_SEEKABLE (mo), 200, G_SEEK_CUR, NULL, &error));
  74   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
  75   g_error_free (error);
  76
  77   g_object_unref (mo);
  78 }
  79
  80 static void
  81 test_data_size (void)
  82 {
  83   GOutputStream *mo;
  84   GDataOutputStream *o;
  85   int pos;
  86
  87   g_test_bug ("540459");
  88
  89   mo = g_memory_output_stream_new_resizable ();
  90   o = g_data_output_stream_new (mo);
  91   g_data_output_stream_put_byte (o, 1, NULL, NULL);
  92   pos = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mo));
  93   g_assert_cmpint (pos, ==, 1);
  94
  95   g_seekable_seek (G_SEEKABLE (mo), 0, G_SEEK_CUR, NULL, NULL);
  96   pos = g_seekable_tell (G_SEEKABLE (mo));
  97   g_assert_cmpint (pos, ==, 1);
  98
  99   g_test_bug ("540461");
 100
 101   g_seekable_seek (G_SEEKABLE (mo), 0, G_SEEK_SET, NULL, NULL);
 102   pos = g_seekable_tell (G_SEEKABLE (mo));
 103   g_assert_cmpint (pos, ==, 0);
 104
 105   pos = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mo));
 106   g_assert_cmpint (pos, ==, 1);
 107
 108   g_assert_cmpint (g_memory_output_stream_get_size (G_MEMORY_OUTPUT_STREAM (mo)), ==, 16);
 109
 110   g_object_unref (o);
 111   g_object_unref (mo);
 112 }
 113
 114 static void
 115 test_properties (void)
 116 {
 117   GOutputStream *mo;
 118   GDataOutputStream *o;
 119   int i;
 120   GError *error = NULL;
 121   gsize data_size_fun;
 122   gsize data_size_prop;
 123   gpointer data_fun;
 124   gpointer data_prop;
 125   gpointer func;
 126
 127   g_test_bug ("605733");
 128
 129   mo = (GOutputStream*) g_object_new (G_TYPE_MEMORY_OUTPUT_STREAM,
 130                                       "realloc-function", g_realloc,
 131                                       "destroy-function", g_free,
 132                                       NULL);
 133   o = g_data_output_stream_new (mo);
 134
 135   for (i = 0; i < 1000; i++)
 136     {
 137       g_data_output_stream_put_byte (o, 1, NULL, &error);
 138       g_assert_no_error (error);
 139     }
 140
 141   data_size_fun = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mo));
 142   g_object_get (mo, "data-size", &data_size_prop, NULL);
 143   g_assert_cmpint (data_size_fun, ==, data_size_prop);
 144
 145   data_fun = g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (mo));
 146   g_object_get (mo, "data", &data_prop, NULL);
 147   g_assert_cmphex (GPOINTER_TO_SIZE (data_fun), ==, GPOINTER_TO_SIZE (data_prop));
 148
 149   g_object_get (mo, "realloc-function", &func, NULL);
 150   g_assert (func == g_realloc);
 151   g_object_get (mo, "destroy-function", &func, NULL);
 152   g_assert (func == g_free);
 153
 154   data_size_fun = g_memory_output_stream_get_size (G_MEMORY_OUTPUT_STREAM (mo));
 155   g_object_get (mo, "size", &data_size_prop, NULL);
 156   g_assert_cmpint (data_size_fun, ==, data_size_prop);
 157
 158   g_object_unref (o);
 159   g_object_unref (mo);
 160 }
 161
 162 static void
 163 test_write_bytes (void)
 164 {
 165   GOutputStream *mo;
 166   GBytes *bytes, *bytes2;
 167   GError *error = NULL;
 168
 169   mo = (GOutputStream*) g_object_new (G_TYPE_MEMORY_OUTPUT_STREAM,
 170                                       "realloc-function", g_realloc,
 171                                       "destroy-function", g_free,
 172                                       NULL);
 173   bytes = g_bytes_new_static ("hello world!", strlen ("hello world!") + 1);
 174   g_output_stream_write_bytes (mo, bytes, NULL, &error);
 175   g_assert_no_error (error);
 176
 177   g_output_stream_close (mo, NULL, &error);
 178   g_assert_no_error (error);
 179
 180   bytes2 = g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (mo));
 181   g_object_unref (mo);
 182   g_assert (g_bytes_equal (bytes, bytes2));
 183
 184   g_bytes_unref (bytes);
 185   g_bytes_unref (bytes2);
 186 }
 187
 188 static void
 189 test_steal_as_bytes (void)
 190 {
 191   GOutputStream *mo;
 192   GDataOutputStream *o;
 193   GError *error = NULL;
 194   GBytes *bytes;
 195   gsize size;
 196
 197   mo = (GOutputStream*) g_object_new (G_TYPE_MEMORY_OUTPUT_STREAM,
 198                                       "realloc-function", g_realloc,
 199                                       "destroy-function", g_free,
 200                                       NULL);
 201   o = g_data_output_stream_new (mo);
 202
 203   g_data_output_stream_put_string (o, "hello ", NULL, &error);
 204   g_assert_no_error (error);
 205
 206   g_data_output_stream_put_string (o, "world!", NULL, &error);
 207   g_assert_no_error (error);
 208
 209   g_data_output_stream_put_byte (o, '\0', NULL, &error);
 210   g_assert_no_error (error);
 211
 212   g_output_stream_close ((GOutputStream*) o, NULL, &error);
 213   g_assert_no_error (error);
 214
 215   bytes = g_memory_output_stream_steal_as_bytes ((GMemoryOutputStream*)mo);
 216   g_object_unref (mo);
 217
 218   g_assert_cmpint (g_bytes_get_size (bytes), ==, strlen ("hello world!") + 1);
 219   g_assert_cmpstr (g_bytes_get_data (bytes, &size), ==, "hello world!");
 220
 221   g_bytes_unref (bytes);
 222   g_object_unref (o);
 223 }
 224
 225 int
 226 main (int   argc,
 227       char *argv[])
 228 {
 229   g_test_init (&argc, &argv, NULL);
 230   g_test_bug_base ("http://bugzilla.gnome.org/");
 231
 232   g_test_add_func ("/memory-output-stream/truncate", test_truncate);
 233   g_test_add_func ("/memory-output-stream/seek", test_seek);
 234   g_test_add_func ("/memory-output-stream/get-data-size", test_data_size);
 235   g_test_add_func ("/memory-output-stream/properties", test_properties);
 236   g_test_add_func ("/memory-output-stream/write-bytes", test_write_bytes);
 237   g_test_add_func ("/memory-output-stream/steal_as_bytes", test_steal_as_bytes);
 238
 239   return g_test_run();
 240 }