Add pure gdk-pixbuf tests from GTK+

1 files changed, 170 insertions, 0 deletions

diff --git a/tests/pixbuf-random.c b/tests/pixbuf-random.c
new file mode 100644
index 000000000..e94b63115
--- /dev/null
+++ b/tests/pixbuf-random.c
@@ -0,0 +1,170 @@
+/* -*- Mode: C; c-basic-offset: 2; -*- */
+/* GdkPixbuf library - assault loaders with random data
+ *
+ * Copyright (C) 2001 Søren Sandmann (sandmann@daimi.au.dk)
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "gdk-pixbuf/gdk-pixbuf.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+
+static void
+assault (const guchar *header, gsize header_size, int n_images)
+{
+  FILE *f;
+  enum { N_CHARACTERS = 10000 };
+
+  int j;
+
+  for (j = 0; j < n_images; ++j)
+    {
+      GError *err = NULL;
+      int i;
+      GdkPixbufLoader *loader;
+      
+      f = fopen ("pixbuf-random-image", "w");
+      if (!f)
+	{
+	  perror ("fopen");
+	  exit (EXIT_FAILURE);
+	}
+  
+      loader = gdk_pixbuf_loader_new ();
+      
+      gdk_pixbuf_loader_write (loader, header, header_size, &err);
+      if (err)
+	{
+	  g_error_free (err);
+	  continue;
+	}
+      
+      for (i = 0; i < N_CHARACTERS; ++i)
+	{
+	  int r = g_random_int ();
+
+	  fwrite (&r, 1, sizeof (r), f);
+	  if (ferror (f))
+	    {
+	      perror ("fwrite");
+	      exit (EXIT_FAILURE);
+	    }
+	  
+	  gdk_pixbuf_loader_write (loader, (guchar *)&r, sizeof (r), &err);
+	  if (err)
+	    {
+	      g_error_free (err);
+	      err = NULL;
+	      break;
+	    }
+	}
+      
+      fclose (f);
+      
+      gdk_pixbuf_loader_close (loader, &err);
+      if (err)
+	{
+	  g_error_free (err);
+	  err = NULL;
+	}
+      
+      g_object_unref (loader);
+    }
+}
+
+static void
+write_seed (int seed)
+{
+  FILE *f;
+  /* write this so you can reproduce failed tests */
+  f = fopen ("pixbuf-random-seed", "w");
+  if (!f)
+    {
+      perror ("fopen");
+      exit (EXIT_FAILURE);
+    }
+  if (fprintf (f, "%d\n", seed) < 0)
+    {
+      perror ("fprintf");
+      exit (EXIT_FAILURE);
+    }
+  if (fclose (f) < 0)
+    {
+      perror ("fclose");
+      exit (EXIT_FAILURE);
+    }
+  g_print ("seed: %d\n", seed);
+}
+
+int
+main (int argc, char **argv)
+{
+  int seed;
+
+  if (argc > 1)
+    seed = atoi (argv[1]);
+  else
+    {
+      seed = time (NULL);
+      write_seed (seed);
+    }
+  g_print ("the last tested image is saved to the file \"pixbuf-random-image\"\n\n");
+
+  g_type_init ();
+  g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL);
+  
+  g_random_set_seed (seed);
+
+#define GIF_HEADER 'G', 'I', 'F', '8', '9', 'a'
+#define PNG_HEADER 0x89, 'P', 'N', 'G', 0x0d, 0x0a, 0x1a, 0x0a
+#define TIFF1_HEADER 'M', 'M', 0x00, 0x2a
+#define TIFF2_HEADER 'I', 'I', 0x2a, 0x00
+#define JPEG_HEADER 0xFF, 0xd8
+#define PNM_HEADER 'P', '6'
+#define XBM_HEADER '#', 'd', 'e', 'f', 'i', 'n', 'e', ' '  
+#define BMP_HEADER 'B', 'M'  
+#define XPM_HEADER '/', '*', ' ', 'X', 'P', 'M', ' ', '*', '/'
+#define RAS_HEADER 0x59, 0xA6, 0x6A, 0x95
+
+#define TEST_RANDOM(header, n_img)				\
+do {								\
+	static guchar h[] = { header };				\
+	g_print (#header);					\
+	fflush (stdout);					\
+	assault (h, sizeof (h), n_img);				\
+	g_print ("\t\tpassed\n");				\
+} while (0)
+
+  for (;;)
+    {
+      TEST_RANDOM (GIF_HEADER,   150);
+      TEST_RANDOM (PNG_HEADER,   110);
+      TEST_RANDOM (JPEG_HEADER,  800);
+      TEST_RANDOM (TIFF1_HEADER, 150);
+      TEST_RANDOM (TIFF2_HEADER, 150);
+      TEST_RANDOM (PNM_HEADER,   150);
+      TEST_RANDOM (XBM_HEADER,   150);
+      TEST_RANDOM (BMP_HEADER,   150);
+      TEST_RANDOM (XPM_HEADER,   150);
+      TEST_RANDOM (RAS_HEADER,   300);
+      g_print ("===========================\n");
+    }
+  
+  return 0;
+}