[glib] Added test cases for g_output_stream_close_async

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 246db9bfdb5919a77ce5ae0d2f426f163f7702c1
Author: Jesse van den Kieboom <jesse vandenkieboom epfl ch>
Date:   Fri May 7 11:55:40 2010 +0200

    Added test cases for g_output_stream_close_async
    
    https://bugzilla.gnome.org/show_bug.cgi?id=617937

 gio/tests/Makefile.am                 |    6 +-
 gio/tests/async-close-output-stream.c |  278 +++++++++++++++++++++++++++++++++
 2 files changed, 283 insertions(+), 1 deletions(-)
---
diff --git a/gio/tests/Makefile.am b/gio/tests/Makefile.am
index 8be6313..dec45bf 100644
--- a/gio/tests/Makefile.am
+++ b/gio/tests/Makefile.am
@@ -35,7 +35,8 @@ TEST_PROGS +=	 		\
 	srvtarget		\
 	contexts		\
 	gsettings		\
-	gschema-compile
+	gschema-compile		\
+	async-close-output-stream
 
 SAMPLE_PROGS = 			\
 	resolver		\
@@ -78,6 +79,9 @@ data_input_stream_LDADD		= $(progs_ldadd)
 data_output_stream_SOURCES	= data-output-stream.c
 data_output_stream_LDADD	= $(progs_ldadd)
 
+async_close_output_stream_SOURCES	= async-close-output-stream.c
+async_close_output_stream_LDADD		= $(progs_ldadd)
+
 filter_cat_SOURCES	= filter-cat.c
 filter_cat_LDADD	= $(progs_ldadd)
 
diff --git a/gio/tests/async-close-output-stream.c b/gio/tests/async-close-output-stream.c
new file mode 100644
index 0000000..8fc8e7e
--- /dev/null
+++ b/gio/tests/async-close-output-stream.c
@@ -0,0 +1,278 @@
+/* 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;
+
+  size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));
+
+  /* compare the size of the data */
+  g_assert_cmpint (size, ==, data->expected_size);
+
+  written = g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (data->data_stream));
+
+  /* compare the data itself */
+  g_assert (memcmp (written, data->expected_output, size) == 0);
+}
+
+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);
+
+  /* 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;
+
+  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)
+{
+  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_type_init ();
+  g_thread_init (NULL);
+
+  g_test_init (&argc, &argv, NULL);
+
+  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();
+}