/* GLib testing framework examples and tests

 * Authors: Jesse van den Kieboom <jessevdk@gnome.org>

 *

 * 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>

#define DATA_TO_WRITE "Hello world\n"

typedef struct

{

  GOutputStream *conv_stream;

  GOutputStream *data_stream;

  gchar *expected_output;

  gsize expected_size;

  GMainLoop *main_loop;

} SetupData;

static void

create_streams (SetupData *data)

{

  GConverter *converter;

  converter = G_CONVERTER (g_zlib_compressor_new (G_ZLIB_COMPRESSOR_FORMAT_GZIP, -1));

  data->data_stream = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);

  data->conv_stream = g_converter_output_stream_new (data->data_stream,

                                                     converter);

  g_object_unref (converter);

}

static void

destroy_streams (SetupData *data)

{

  g_object_unref (data->data_stream);

  g_object_unref (data->conv_stream);

}

static void

write_data_to_stream (SetupData *data)

{

  gsize bytes_written;

  GError *error = NULL;

  /* just write the data synchronously */

  g_output_stream_write_all (data->conv_stream,

                             DATA_TO_WRITE,

                             sizeof (DATA_TO_WRITE),

                             &bytes_written,

                             NULL,

                             &error);

  g_assert_no_error (error);

  g_assert_cmpint (sizeof (DATA_TO_WRITE), ==, bytes_written);

}

static void

setup_data (SetupData     *data,

            gconstpointer  user_data)

{

  data->main_loop = g_main_loop_new (NULL, FALSE);

  create_streams (data);

}

static void

teardown_data (SetupData     *data,

               gconstpointer  user_data)

{

  /* cleanup */

  g_main_loop_unref (data->main_loop);

  destroy_streams (data);

  g_free (data->expected_output);

}

static void

compare_output (SetupData *data)

{

  gsize size;

  gpointer written;

  written = g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (data->data_stream));

  size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));

  g_assert_cmpmem (written, size, data->expected_output, data->expected_size);

}

static void

async_close_ready (GOutputStream *stream,

                   GAsyncResult  *result,

                   SetupData     *data)

{

  GError *error = NULL;

  /* finish the close */

  g_output_stream_close_finish (stream, result, &error);

  g_assert_no_error (error);

  /* compare the output with the desired output */

  compare_output (data);

  g_main_loop_quit (data->main_loop);

}

static void

prepare_data (SetupData *data,

              gboolean   manual_flush)

{

  GError *error = NULL;

  gpointer written;

  write_data_to_stream (data);

  if (manual_flush)

    {

      g_output_stream_flush (data->conv_stream, NULL, &error);

      g_assert_no_error (error);

    }

  g_output_stream_close (data->conv_stream, NULL, &error);

  g_assert_no_error (error);

  written = g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (data->data_stream));

  data->expected_size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));

  g_assert_cmpint (data->expected_size, >, 0);

  data->expected_output = g_memdup (written, (guint)data->expected_size);

  /* then recreate the streams and prepare them for the asynchronous close */

  destroy_streams (data);

  create_streams (data);

  write_data_to_stream (data);

}

static void

test_without_flush (SetupData     *data,

                    gconstpointer  user_data)

{

  prepare_data (data, FALSE);

  g_test_bug ("617937");

  /* just close asynchronously */

  g_output_stream_close_async (data->conv_stream,

                               G_PRIORITY_DEFAULT,

                               NULL,

                               (GAsyncReadyCallback)async_close_ready,

                               data);

  g_main_loop_run (data->main_loop);

}

static void

test_with_flush (SetupData *data, gconstpointer user_data)

{

  GError *error = NULL;

  g_test_bug ("617937");

  prepare_data (data, TRUE);

  g_output_stream_flush (data->conv_stream, NULL, &error);

  g_assert_no_error (error);

  /* then close asynchronously */

  g_output_stream_close_async (data->conv_stream,

                               G_PRIORITY_DEFAULT,

                               NULL,

                               (GAsyncReadyCallback)async_close_ready,

                               data);

  g_main_loop_run (data->main_loop);

}

static void

async_flush_ready (GOutputStream *stream,

                   GAsyncResult  *result,

                   SetupData     *data)

{

  GError *error = NULL;

  g_output_stream_flush_finish (stream, result, &error);

  g_assert_no_error (error);

  /* then close async after the flush */

  g_output_stream_close_async (data->conv_stream,

                               G_PRIORITY_DEFAULT,

                               NULL,

                               (GAsyncReadyCallback)async_close_ready,

                               data);

}

static void

test_with_async_flush (SetupData     *data,

                       gconstpointer  user_data)

{

  g_test_bug ("617937");

  prepare_data (data, TRUE);

  /* first flush async */

  g_output_stream_flush_async (data->conv_stream,

                               G_PRIORITY_DEFAULT,

                               NULL,

                               (GAsyncReadyCallback)async_flush_ready,

                               data);

  g_main_loop_run (data->main_loop);

}

int

main (int   argc,

      char *argv[])

{

  SetupData *data;

  g_test_init (&argc, &argv, NULL);

  g_test_bug_base ("http://bugzilla.gnome.org/");

  data = g_slice_new (SetupData);

  /* test closing asynchronously without flushing manually */

  g_test_add ("/close-async/without-flush",

              SetupData,

              data,

              setup_data,

              test_without_flush,

              teardown_data);

  /* test closing asynchronously with a synchronous manually flush */

  g_test_add ("/close-async/with-flush",

              SetupData,

              data,

              setup_data,

              test_with_flush,

              teardown_data);

  /* test closing asynchronously with an asynchronous manually flush */

  g_test_add ("/close-async/with-async-flush",

              SetupData,

              data,

              setup_data,

              test_with_async_flush,

              teardown_data);

  g_slice_free (SetupData, data);

  return g_test_run();

}