mcs/class/System.Drawing/Test/System.Drawing/TestImage.cs

   1 //
   2 // Image class testing unit
   3 //
   4 // Authors:
   5 //      Jordi Mas i Hernàndez (jmas@softcatala.org>
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // (C) 2005 Ximian, Inc.  http://www.ximian.com
   9 // Copyright (C) 2005-2007 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Drawing;
  33 using System.Drawing.Imaging;
  34 using System.IO;
  35 using System.Reflection;
  36 using System.Security.Permissions;
  37 using System.Xml.Serialization;
  38 using NUnit.Framework;
  39
  40 namespace MonoTests.System.Drawing{
  41
  42         [TestFixture]
  43         [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  44         public class ImageTest {
  45
  46                 private string fname;
  47                 private bool callback;
  48
  49                 [TestFixtureSetUp]
  50                 public void FixtureSetup ()
  51                 {
  52                         fname = Path.GetTempFileName ();
  53                 }
  54
  55                 [TestFixtureTearDown]
  56                 public void FixtureTearDown ()
  57                 {
  58                         try {
  59                                 File.Delete (fname);
  60                         }
  61                         catch {
  62                         }
  63                 }
  64
  65                 [SetUp]
  66                 public void SetUp ()
  67                 {
  68                         callback = false;
  69                 }
  70
  71                 [Test]
  72                 [ExpectedException (typeof (FileNotFoundException))]
  73                 public void FileDoesNotExists ()
  74                 {
  75                         Image.FromFile ("FileDoesNotExists.jpg");
  76                 }
  77
  78                 private bool CallbackTrue ()
  79                 {
  80                         callback = true;
  81                         return true;
  82                 }
  83
  84                 private bool CallbackFalse ()
  85                 {
  86                         callback = true;
  87                         return false;
  88                 }
  89
  90                 [Test]
  91                 public void GetThumbnailImage_NullCallback_Tiff ()
  92                 {
  93                         using (Bitmap bmp = new Bitmap (10, 10)) {
  94                                 // according to documentation a callback is mandatory
  95                                 Image tn = bmp.GetThumbnailImage (10, 5, null, IntPtr.Zero);
  96                                 Assert.AreEqual (5, tn.Height, "Height");
  97                                 Assert.AreEqual (10, tn.Width, "Width");
  98                                 Assert.IsFalse (callback, "Callback called");
  99                                 tn.Save (fname, ImageFormat.Tiff);
 100                         }
 101                 }
 102
 103                 [Test]
 104                 [ExpectedException (typeof (OutOfMemoryException))]
 105                 public void GetThumbnailImage_Height_Zero ()
 106                 {
 107                         using (Bitmap bmp = new Bitmap (10, 10)) {
 108                                 Image tn = bmp.GetThumbnailImage (5, 0, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 109                         }
 110                 }
 111
 112                 [Test]
 113                 [ExpectedException (typeof (OutOfMemoryException))]
 114                 public void GetThumbnailImage_Width_Negative ()
 115                 {
 116                         using (Bitmap bmp = new Bitmap (10, 10)) {
 117                                 Image tn = bmp.GetThumbnailImage (-5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 118                         }
 119                 }
 120
 121                 [Test]
 122                 public void GetThumbnailImage_CallbackData_Invalid ()
 123                 {
 124                         using (Bitmap bmp = new Bitmap (10, 10)) {
 125                                 // according to documentation IntPtr.Zero must be supplied as data
 126                                 Image tn = bmp.GetThumbnailImage (5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), (IntPtr)Int32.MaxValue);
 127                                 Assert.AreEqual (5, tn.Height, "Height");
 128                                 Assert.AreEqual (5, tn.Width, "Width");
 129                                 Assert.IsFalse (callback, "Callback called");
 130                                 tn.Save (fname, ImageFormat.Tiff);
 131                         }
 132                 }
 133
 134                 [Test]
 135                 public void GetThumbnailImage_SameSize_Bmp ()
 136                 {
 137                         using (Bitmap bmp = new Bitmap (10, 10)) {
 138                                 Image tn = bmp.GetThumbnailImage (10, 10, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 139                                 Assert.AreEqual (10, tn.Height, "Height");
 140                                 Assert.AreEqual (10, tn.Width, "Width");
 141                                 Assert.IsFalse (callback, "Callback called");
 142                                 tn.Save (fname, ImageFormat.Bmp);
 143                         }
 144                 }
 145
 146                 [Test]
 147                 public void GetThumbnailImage_Smaller_Gif ()
 148                 {
 149                         using (Bitmap bmp = new Bitmap (10, 10)) {
 150                                 Image tn = bmp.GetThumbnailImage (4, 4, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
 151                                 Assert.AreEqual (4, tn.Height, "Height");
 152                                 Assert.AreEqual (4, tn.Width, "Width");
 153                                 Assert.IsFalse (callback, "Callback called");
 154                                 tn.Save (fname, ImageFormat.Gif);
 155                         }
 156                 }
 157
 158                 [Test]
 159                 public void GetThumbnailImage_Bigger_Png ()
 160                 {
 161                         using (Bitmap bmp = new Bitmap (10, 10)) {
 162                                 Image tn = bmp.GetThumbnailImage (40, 40, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
 163                                 Assert.AreEqual (40, tn.Height, "Height");
 164                                 Assert.AreEqual (40, tn.Width, "Width");
 165                                 Assert.IsFalse (callback, "Callback called");
 166                                 tn.Save (fname, ImageFormat.Png);
 167                         }
 168                 }
 169
 170                 [Test]
 171 #if !NET_2_0
 172                 [Category ("NotDotNet")] // MS 1.x throws an ArgumentNullException in this case
 173 #endif
 174                 public void Stream_Unlocked ()
 175                 {
 176                         try {
 177                                 Image img = null;
 178                                 using (MemoryStream ms = new MemoryStream ()) {
 179                                         using (Bitmap bmp = new Bitmap (10, 10)) {
 180                                                 bmp.Save (ms, ImageFormat.Png);
 181                                         }
 182                                         ms.Position = 0;
 183                                         img = Image.FromStream (ms);
 184                                 }
 185                                 // stream isn't available anymore
 186                                 ((Bitmap) img).MakeTransparent (Color.Transparent);
 187                         }
 188                         catch (OutOfMemoryException) {
 189                                 int p = (int) Environment.OSVersion.Platform;
 190                                 // libgdiplus (UNIX) doesn't lazy load the image so the
 191                                 // stream may be freed (and this exception will never occur)
 192                                 if ((p == 4) || (p == 128) || (p == 6))
 193                                         throw;
 194                         }
 195                 }
 196
 197                 [Test]
 198 #if !NET_2_0
 199                 [Category ("NotDotNet")] // MS 1.x throws an ArgumentNullException in this case
 200 #endif
 201                 public void Stream_Locked ()
 202                 {
 203                         Image img = null;
 204                         using (MemoryStream ms = new MemoryStream ()) {
 205                                 using (Bitmap bmp = new Bitmap (10, 10)) {
 206                                         bmp.Save (ms, ImageFormat.Png);
 207                                 }
 208                                 ms.Position = 0;
 209                                 img = Image.FromStream (ms);
 210                                 // stream is available
 211                                 ((Bitmap) img).MakeTransparent (Color.Transparent);
 212                         }
 213                 }
 214
 215                 [Test]
 216 #if NET_2_0
 217                 [Category ("NotWorking")]       // http://bugzilla.ximian.com/show_bug.cgi?id=80558
 218 #else
 219                 [ExpectedException (typeof (InvalidOperationException))]
 220 #endif
 221                 public void XmlSerialize ()
 222                 {
 223                         new XmlSerializer (typeof (Image));
 224                 }
 225
 226                 private void Wmf (Image img)
 227                 {
 228                         Assert.IsFalse (img is Bitmap, "Bitmap");
 229                         Assert.IsTrue (img is Metafile, "Metafile");
 230                         // as Image
 231                         Assert.AreEqual (327683, img.Flags, "Flags");
 232                         Assert.IsTrue (img.RawFormat.Equals (ImageFormat.Wmf), "Wmf");
 233 #if NET_2_0
 234                         Assert.IsNull (img.Tag, "Tag");
 235 #endif
 236                 }
 237
 238                 [Test]
 239                 public void FromFile_Metafile_Wmf ()
 240                 {
 241                         string filename = TestBitmap.getInFile ("bitmaps/telescope_01.wmf");
 242                         using (Image img = Image.FromFile (filename)) {
 243                                 Wmf (img);
 244                         }
 245                 }
 246
 247                 [Test]
 248                 public void FromStream_Metafile_Wmf ()
 249                 {
 250                         string filename = TestBitmap.getInFile ("bitmaps/telescope_01.wmf");
 251                         using (FileStream fs = File.OpenRead (filename)) {
 252                                 using (Image img = Image.FromStream (fs)) {
 253                                         Wmf (img);
 254                                 }
 255                         }
 256                 }
 257
 258                 [Test]
 259                 [Category ("NotWorking")] // https://bugzilla.novell.com/show_bug.cgi?id=338779
 260                 [ExpectedException (typeof (ArgumentException))]
 261                 public void FromStream_Metafile_Wmf_NotOrigin ()
 262                 {
 263                         string filename = TestBitmap.getInFile ("bitmaps/telescope_01.wmf");
 264                         using (FileStream fs = File.OpenRead (filename)) {
 265                                 fs.Position = fs.Length / 2;
 266                                 Image.FromStream (fs);
 267                         }
 268                 }
 269
 270                 private void Emf (Image img)
 271                 {
 272                         Assert.IsFalse (img is Bitmap, "Bitmap");
 273                         Assert.IsTrue (img is Metafile, "Metafile");
 274                         // as Image
 275                         Assert.AreEqual (327683, img.Flags, "Flags");
 276                         Assert.IsTrue (img.RawFormat.Equals (ImageFormat.Emf), "Emf");
 277 #if NET_2_0
 278                         Assert.IsNull (img.Tag, "Tag");
 279 #endif
 280                 }
 281
 282                 [Test]
 283                 public void FromFile_Metafile_Emf ()
 284                 {
 285                         string filename = TestBitmap.getInFile ("bitmaps/milkmateya01.emf");
 286                         using (Image img = Image.FromFile (filename)) {
 287                                 Emf (img);
 288                         }
 289                 }
 290
 291                 [Test]
 292                 public void FromStream_Metafile_Emf ()
 293                 {
 294                         string filename = TestBitmap.getInFile ("bitmaps/milkmateya01.emf");
 295                         using (FileStream fs = File.OpenRead (filename)) {
 296                                 using (Image img = Image.FromStream (fs)) {
 297                                         Emf (img);
 298                                 }
 299                         }
 300                 }
 301
 302                 [Test]
 303                 [Category ("NotWorking")] // https://bugzilla.novell.com/show_bug.cgi?id=338779
 304                 [ExpectedException (typeof (ArgumentException))]
 305                 public void FromStream_Metafile_Emf_NotOrigin ()
 306                 {
 307                         string filename = TestBitmap.getInFile ("bitmaps/milkmateya01.emf");
 308                         using (FileStream fs = File.OpenRead (filename)) {
 309                                 fs.Position = fs.Length / 2;
 310                                 Image.FromStream (fs);
 311                         }
 312                 }
 313
 314                 [Test]
 315                 [ExpectedException (typeof (OutOfMemoryException))]
 316                 public void FromFile_Invalid ()
 317                 {
 318                         string filename = Assembly.GetExecutingAssembly ().Location;
 319                         Image.FromFile (filename);
 320                 }
 321
 322                 [Test]
 323                 [ExpectedException (typeof (ArgumentException))]
 324                 public void FromStream_Invalid ()
 325                 {
 326                         string filename = Assembly.GetExecutingAssembly ().Location;
 327                         using (FileStream fs = File.OpenRead (filename)) {
 328                                 Image.FromStream (fs);
 329                         }
 330                 }
 331
 332                 private Bitmap GetBitmap ()
 333                 {
 334                         Bitmap bmp = new Bitmap (20, 10, PixelFormat.Format24bppRgb);
 335                         using (Graphics g = Graphics.FromImage (bmp))
 336                         {
 337                                 Pen pen = new Pen (Color.Black, 3);
 338                                 g.DrawRectangle (pen, 0, 0, 5, 10);
 339                         }
 340                         return bmp;
 341                 }
 342
 343                 [Test]
 344                 public void StreamSaveLoad ()
 345                 {
 346                         using (MemoryStream ms = new MemoryStream ()) {
 347                                 using (Bitmap bmp = GetBitmap ()) {
 348                                         Assert.AreEqual (0, ms.Position, "Position-1");
 349                                         bmp.Save (ms, ImageFormat.Bmp);
 350                                         Assert.IsTrue (ms.Position > 0, "Position-2");
 351
 352                                         ms.Position = ms.Length;
 353                                         Assert.AreEqual (ms.Length, ms.Position, "Position-3");
 354
 355                                         Bitmap bmp2 = (Bitmap)Image.FromStream (ms);
 356                                         Assert.IsTrue (ms.Position > 20, "Position-4");
 357
 358                                         Assert.IsTrue (bmp2.RawFormat.Equals (ImageFormat.Bmp), "Bmp");
 359
 360                                         Assert.AreEqual (bmp.GetPixel (0, 0), bmp2.GetPixel (0, 0), "0,0");
 361                                         Assert.AreEqual (bmp.GetPixel (10, 0), bmp2.GetPixel (10, 0), "10,0");
 362                                 }
 363                         }
 364                 }
 365
 366                 [Test]
 367                 [ExpectedException (typeof (ArgumentException))]
 368                 public void StreamJunkSaveLoad ()
 369                 {
 370                         using (MemoryStream ms = new MemoryStream ()) {
 371                                 // junk
 372                                 ms.WriteByte (0xff);
 373                                 ms.WriteByte (0xef);
 374                                 Assert.AreEqual (2, ms.Position, "Position-1");
 375
 376                                 using (Bitmap bmp = GetBitmap ()) {
 377                                         bmp.Save (ms, ImageFormat.Bmp);
 378                                         Assert.IsTrue (ms.Position > 2, "Position-2");
 379                                         // exception here
 380                                         Image.FromStream (ms);
 381                                 }
 382                         }
 383                 }
 384
 385                 [Test]
 386 #if !NET_2_0
 387                 [ExpectedException (typeof (InvalidOperationException))]
 388 #endif
 389                 public void XmlSerialization ()
 390                 {
 391                         new XmlSerializer (typeof (Image));
 392                 }
 393         }
 394 }