[gdk-pixbuf] Add some tests for pixbuf-form-stream apis

[Matthias Clasen <matthiasc src gnome org>]

commit b4841e463b4418ce7e4048440d0a225fe8309dc2
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 17 19:34:31 2013 -0500

    Add some tests for pixbuf-form-stream apis

 tests/Makefile.am     |    1 +
 tests/pixbuf-stream.c |  197 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 198 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ac367f7..c3246af 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -32,6 +32,7 @@ test_programs =                       \
        pixbuf-randomly-modified        \
        pixbuf-threads                  \
        pixbuf-icc                      \
+       pixbuf-stream                   \
        $(NULL)
 
 dist_test_data =                       \
diff --git a/tests/pixbuf-stream.c b/tests/pixbuf-stream.c
new file mode 100644
index 0000000..4ddcd7b
--- /dev/null
+++ b/tests/pixbuf-stream.c
@@ -0,0 +1,197 @@
+/* -*- Mode: C; c-basic-offset: 2; -*- */
+/* GdkPixbuf library - test loaders
+ *
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Author: Matthias Clasen
+ */
+
+#include "config.h"
+#include "gdk-pixbuf/gdk-pixbuf.h"
+#include <string.h>
+
+#define compare_option(p1, p2, key) \
+  g_strcmp0 (gdk_pixbuf_get_option (p1, key), gdk_pixbuf_get_option (p2, key))
+
+static gboolean
+pixbuf_equal (GdkPixbuf *p1, GdkPixbuf *p2)
+{
+  if (gdk_pixbuf_get_colorspace (p1) != gdk_pixbuf_get_colorspace (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_n_channels (p1) != gdk_pixbuf_get_n_channels (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_bits_per_sample (p1) != gdk_pixbuf_get_bits_per_sample (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_width (p1) != gdk_pixbuf_get_width (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_height (p1) != gdk_pixbuf_get_height (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_rowstride (p1) != gdk_pixbuf_get_rowstride (p2))
+    return FALSE;
+  if (memcmp (gdk_pixbuf_get_pixels (p1), gdk_pixbuf_get_pixels (p2),
+          gdk_pixbuf_get_byte_length (p1)) != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "Title") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "Artist") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "x_hot") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "y_hot") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "orientation") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "icc-profile") != 0)
+    return FALSE;
+
+  return TRUE;
+}
+
+static void
+test_stream (gconstpointer data)
+{
+  const gchar *filename = data;
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *pixbuf, *ref;
+  GFile *file;
+  GInputStream *stream;
+
+  path = g_test_get_filename (G_TEST_DIST, filename, NULL);
+  ref = gdk_pixbuf_new_from_file (path, &error);
+  g_assert_no_error (error);
+
+  file = g_file_new_for_path (path);
+  stream = (GInputStream *)g_file_read (file, NULL, &error);
+  g_assert_no_error (error);
+
+  pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, &error);
+  g_assert_no_error (error);
+  g_assert (pixbuf_equal (pixbuf, ref));
+  g_object_unref (pixbuf);
+  
+  g_object_unref (stream);
+  g_object_unref (file);
+  g_object_unref (ref);
+}
+
+static void
+async_done_cb (GObject *source, GAsyncResult *res, gpointer data)
+{
+  GdkPixbuf *ref = data;
+  GdkPixbuf *pixbuf;
+  GError *error = NULL;
+
+  pixbuf = gdk_pixbuf_new_from_stream_finish (res, &error);
+  g_assert_no_error (error);
+
+  g_assert (pixbuf_equal (pixbuf, ref));
+
+  g_object_unref (pixbuf);
+  g_object_unref (ref);
+}
+
+static void
+test_stream_async (gconstpointer data)
+{
+  const gchar *filename = data;
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *ref;
+  gchar *buffer;
+  gsize size;
+  GInputStream *stream;
+
+  path = g_test_get_filename (G_TEST_DIST, filename, NULL);
+  ref = gdk_pixbuf_new_from_file (path, &error);
+  g_assert_no_error (error);
+
+  g_file_get_contents (path, &buffer, &size, &error);
+  g_assert_no_error (error);
+
+  stream = g_memory_input_stream_new_from_data (buffer, size, g_free);
+  gdk_pixbuf_new_from_stream_async (stream, NULL, async_done_cb, ref);
+  g_object_unref (stream);
+}
+
+static void
+test_stream_at_scale (gconstpointer data)
+{
+  const gchar *filename = data;
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *pixbuf, *ref;
+  GFile *file;
+  GInputStream *stream;
+
+  path = g_test_get_filename (G_TEST_DIST, filename, NULL);
+  ref = gdk_pixbuf_new_from_file_at_scale (path, 20, 30, TRUE, &error);
+  g_assert_no_error (error);
+
+  file = g_file_new_for_path (path);
+  stream = (GInputStream *)g_file_read (file, NULL, &error);
+  g_assert_no_error (error);
+
+  pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, 20, 30, TRUE, NULL, &error);
+  g_assert_no_error (error);
+  g_assert (pixbuf_equal (pixbuf, ref));
+  g_object_unref (pixbuf);
+  
+  g_object_unref (stream);
+  g_object_unref (file);
+  g_object_unref (ref);
+}
+
+static void
+test_stream_at_scale_async (gconstpointer data)
+{
+  const gchar *filename = data;
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *ref;
+  gchar *buffer;
+  gsize size;
+  GInputStream *stream;
+
+  path = g_test_get_filename (G_TEST_DIST, filename, NULL);
+  ref = gdk_pixbuf_new_from_file_at_scale (path, 40, 10, FALSE, &error);
+  g_assert_no_error (error);
+
+  g_file_get_contents (path, &buffer, &size, &error);
+  g_assert_no_error (error);
+
+  stream = g_memory_input_stream_new_from_data (buffer, size, g_free);
+  gdk_pixbuf_new_from_stream_at_scale_async (stream, 40, 10, FALSE, NULL, async_done_cb, ref);
+  g_object_unref (stream);
+}
+
+int
+main (int argc, char **argv)
+{
+#if !GLIB_CHECK_VERSION (2, 35, 3)
+  g_type_init ();
+#endif
+
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_data_func ("/pixbuf/stream", "icc-profile.png", test_stream);
+  g_test_add_data_func ("/pixbuf/stream/async", "icc-profile.png", test_stream_async);
+  g_test_add_data_func ("/pixbuf/stream/scale", "icc-profile.png", test_stream_at_scale);
+  g_test_add_data_func ("/pixbuf/stream/scale/async", "icc-profile.png", test_stream_at_scale_async);
+
+  return g_test_run ();
+}