Import Upstream version 2.72.4
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gio/tests/memory-input-stream.c
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302
gio/tests/memory-input-stream.c
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/* GLib testing framework examples and tests
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* Copyright (C) 2007 Imendio AB
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* Authors: Tim Janik
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*
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* This work is provided "as is"; redistribution and modification
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* in whole or in part, in any medium, physical or electronic is
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* permitted without restriction.
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*
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* This work is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* In no event shall the authors or contributors be liable for any
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* direct, indirect, incidental, special, exemplary, or consequential
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* damages (including, but not limited to, procurement of substitute
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* goods or services; loss of use, data, or profits; or business
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* interruption) however caused and on any theory of liability, whether
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* in contract, strict liability, or tort (including negligence or
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* otherwise) arising in any way out of the use of this software, even
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* if advised of the possibility of such damage.
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*/
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#include <glib/glib.h>
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#include <gio/gio.h>
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#include <stdlib.h>
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#include <string.h>
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static void
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test_read_chunks (void)
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{
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const char *data1 = "abcdefghijklmnopqrstuvwxyz";
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const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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const char *result = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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char buffer[128];
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gsize bytes_read, pos, len, chunk_size;
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GError *error = NULL;
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GInputStream *stream;
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gboolean res;
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stream = g_memory_input_stream_new ();
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data1, -1, NULL);
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data2, -1, NULL);
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len = strlen (data1) + strlen (data2);
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for (chunk_size = 1; chunk_size < len - 1; chunk_size++)
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{
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pos = 0;
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while (pos < len)
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{
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bytes_read = g_input_stream_read (stream, buffer, chunk_size, NULL, &error);
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g_assert_no_error (error);
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g_assert_cmpint (bytes_read, ==, MIN (chunk_size, len - pos));
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g_assert (strncmp (buffer, result + pos, bytes_read) == 0);
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pos += bytes_read;
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}
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g_assert_cmpint (pos, ==, len);
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res = g_seekable_seek (G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, &error);
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g_assert_cmpint (res, ==, TRUE);
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g_assert_no_error (error);
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}
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g_object_unref (stream);
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}
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GMainLoop *loop;
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static void
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async_read_chunk (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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gsize *bytes_read = user_data;
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GError *error = NULL;
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*bytes_read = g_input_stream_read_finish (G_INPUT_STREAM (object),
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result, &error);
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g_assert_no_error (error);
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g_main_loop_quit (loop);
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}
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static void
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async_skipped_chunk (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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gsize *bytes_skipped = user_data;
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GError *error = NULL;
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*bytes_skipped = g_input_stream_skip_finish (G_INPUT_STREAM (object),
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result, &error);
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g_assert_no_error (error);
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g_main_loop_quit (loop);
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}
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static void
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test_async (void)
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{
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const char *data1 = "abcdefghijklmnopqrstuvwxyz";
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const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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const char *result = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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char buffer[128];
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gsize bytes_read, bytes_skipped;
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gsize pos, len, chunk_size;
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GError *error = NULL;
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GInputStream *stream;
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gboolean res;
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loop = g_main_loop_new (NULL, FALSE);
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stream = g_memory_input_stream_new ();
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data1, -1, NULL);
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data2, -1, NULL);
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len = strlen (data1) + strlen (data2);
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for (chunk_size = 1; chunk_size < len - 1; chunk_size++)
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{
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pos = 0;
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while (pos < len)
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{
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g_input_stream_read_async (stream, buffer, chunk_size,
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G_PRIORITY_DEFAULT, NULL,
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async_read_chunk, &bytes_read);
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g_main_loop_run (loop);
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g_assert_cmpint (bytes_read, ==, MIN (chunk_size, len - pos));
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g_assert (strncmp (buffer, result + pos, bytes_read) == 0);
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pos += bytes_read;
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}
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g_assert_cmpint (pos, ==, len);
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res = g_seekable_seek (G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, &error);
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g_assert_cmpint (res, ==, TRUE);
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g_assert_no_error (error);
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pos = 0;
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while (pos + chunk_size + 1 < len)
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{
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g_input_stream_skip_async (stream, chunk_size,
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G_PRIORITY_DEFAULT, NULL,
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async_skipped_chunk, &bytes_skipped);
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g_main_loop_run (loop);
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g_assert_cmpint (bytes_skipped, ==, MIN (chunk_size, len - pos));
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pos += bytes_skipped;
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}
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g_input_stream_read_async (stream, buffer, len - pos,
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G_PRIORITY_DEFAULT, NULL,
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async_read_chunk, &bytes_read);
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g_main_loop_run (loop);
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g_assert_cmpint (bytes_read, ==, len - pos);
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g_assert (strncmp (buffer, result + pos, bytes_read) == 0);
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res = g_seekable_seek (G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, &error);
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g_assert_cmpint (res, ==, TRUE);
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g_assert_no_error (error);
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}
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g_object_unref (stream);
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g_main_loop_unref (loop);
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}
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static void
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test_seek (void)
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{
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const char *data1 = "abcdefghijklmnopqrstuvwxyz";
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const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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GInputStream *stream;
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GError *error;
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char buffer[10];
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stream = g_memory_input_stream_new ();
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data1, -1, NULL);
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data2, -1, NULL);
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g_assert (G_IS_SEEKABLE (stream));
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g_assert (g_seekable_can_seek (G_SEEKABLE (stream)));
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error = NULL;
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g_assert (g_seekable_seek (G_SEEKABLE (stream), 26, G_SEEK_SET, NULL, &error));
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g_assert_no_error (error);
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g_assert_cmpint (g_seekable_tell (G_SEEKABLE (stream)), ==, 26);
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g_assert (g_input_stream_read (stream, buffer, 1, NULL, &error) == 1);
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g_assert_no_error (error);
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g_assert (buffer[0] == 'A');
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g_assert (!g_seekable_seek (G_SEEKABLE (stream), 26, G_SEEK_CUR, NULL, &error));
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g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
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g_error_free (error);
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g_object_unref (stream);
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}
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static void
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test_truncate (void)
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{
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const char *data1 = "abcdefghijklmnopqrstuvwxyz";
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const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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GInputStream *stream;
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GError *error;
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stream = g_memory_input_stream_new ();
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data1, -1, NULL);
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data2, -1, NULL);
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g_assert (G_IS_SEEKABLE (stream));
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g_assert (!g_seekable_can_truncate (G_SEEKABLE (stream)));
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error = NULL;
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g_assert (!g_seekable_truncate (G_SEEKABLE (stream), 26, NULL, &error));
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g_assert_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED);
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g_error_free (error);
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g_object_unref (stream);
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}
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static void
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test_read_bytes (void)
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{
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const char *data1 = "abcdefghijklmnopqrstuvwxyz";
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const char *data2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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GInputStream *stream;
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GError *error = NULL;
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GBytes *bytes;
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gsize size;
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gconstpointer data;
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stream = g_memory_input_stream_new ();
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data1, -1, NULL);
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g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
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data2, -1, NULL);
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bytes = g_input_stream_read_bytes (stream, 26, NULL, &error);
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g_assert_no_error (error);
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data = g_bytes_get_data (bytes, &size);
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g_assert_cmpint (size, ==, 26);
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g_assert (strncmp (data, data1, 26) == 0);
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g_bytes_unref (bytes);
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g_object_unref (stream);
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}
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static void
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test_from_bytes (void)
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{
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gchar data[4096], buffer[4096];
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GBytes *bytes;
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GError *error = NULL;
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GInputStream *stream;
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gint i;
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for (i = 0; i < 4096; i++)
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data[i] = 1 + i % 255;
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bytes = g_bytes_new_static (data, 4096);
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stream = g_memory_input_stream_new_from_bytes (bytes);
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g_assert (g_input_stream_read (stream, buffer, 2048, NULL, &error) == 2048);
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g_assert_no_error (error);
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g_assert (strncmp (data, buffer, 2048) == 0);
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g_object_unref (stream);
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g_bytes_unref (bytes);
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}
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int
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main (int argc,
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char *argv[])
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{
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g_test_init (&argc, &argv, NULL);
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g_test_add_func ("/memory-input-stream/read-chunks", test_read_chunks);
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g_test_add_func ("/memory-input-stream/async", test_async);
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g_test_add_func ("/memory-input-stream/seek", test_seek);
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g_test_add_func ("/memory-input-stream/truncate", test_truncate);
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g_test_add_func ("/memory-input-stream/read-bytes", test_read_bytes);
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g_test_add_func ("/memory-input-stream/from-bytes", test_from_bytes);
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return g_test_run();
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}
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