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.Security.Permissions;
  36 using System.Xml.Serialization;
  37 using NUnit.Framework;
  38
  39 namespace MonoTests.System.Drawing{
  40
  41         [TestFixture]
  42         [SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
  43         public class ImageTest {
  44
  45                 private string fname;
  46                 private bool callback;
  47
  48                 [TestFixtureSetUp]
  49                 public void FixtureSetup ()
  50                 {
  51                         fname = Path.GetTempFileName ();
  52                 }
  53
  54                 [TestFixtureTearDown]
  55                 public void FixtureTearDown ()
  56                 {
  57                         try {
  58                                 File.Delete (fname);
  59                         }
  60                         catch {
  61                         }
  62                 }
  63
  64                 [SetUp]
  65                 public void SetUp ()
  66                 {
  67                         callback = false;
  68                 }
  69
  70                 [Test]
  71                 [ExpectedException (typeof (FileNotFoundException))]
  72                 public void FileDoesNotExists ()
  73                 {
  74                         Image.FromFile ("FileDoesNotExists.jpg");
  75                 }
  76
  77                 private bool CallbackTrue ()
  78                 {
  79                         callback = true;
  80                         return true;
  81                 }
  82
  83                 private bool CallbackFalse ()
  84                 {
  85                         callback = true;
  86                         return false;
  87                 }
  88
  89                 [Test]
  90                 public void GetThumbnailImage_NullCallback_Tiff ()
  91                 {
  92                         using (Bitmap bmp = new Bitmap (10, 10)) {
  93                                 // according to documentation a callback is mandatory
  94                                 Image tn = bmp.GetThumbnailImage (10, 5, null, IntPtr.Zero);
  95                                 Assert.AreEqual (5, tn.Height, "Height");
  96                                 Assert.AreEqual (10, tn.Width, "Width");
  97                                 Assert.IsFalse (callback, "Callback called");
  98                                 tn.Save (fname, ImageFormat.Tiff);
  99                         }
 100                 }
 101
 102                 [Test]
 103                 [ExpectedException (typeof (OutOfMemoryException))]
 104                 public void GetThumbnailImage_Height_Zero ()
 105                 {
 106                         using (Bitmap bmp = new Bitmap (10, 10)) {
 107                                 Image tn = bmp.GetThumbnailImage (5, 0, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 108                         }
 109                 }
 110
 111                 [Test]
 112                 [ExpectedException (typeof (OutOfMemoryException))]
 113                 public void GetThumbnailImage_Width_Negative ()
 114                 {
 115                         using (Bitmap bmp = new Bitmap (10, 10)) {
 116                                 Image tn = bmp.GetThumbnailImage (-5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 117                         }
 118                 }
 119
 120                 [Test]
 121                 public void GetThumbnailImage_CallbackData_Invalid ()
 122                 {
 123                         using (Bitmap bmp = new Bitmap (10, 10)) {
 124                                 // according to documentation IntPtr.Zero must be supplied as data
 125                                 Image tn = bmp.GetThumbnailImage (5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), (IntPtr)Int32.MaxValue);
 126                                 Assert.AreEqual (5, tn.Height, "Height");
 127                                 Assert.AreEqual (5, tn.Width, "Width");
 128                                 Assert.IsFalse (callback, "Callback called");
 129                                 tn.Save (fname, ImageFormat.Tiff);
 130                         }
 131                 }
 132
 133                 [Test]
 134                 public void GetThumbnailImage_SameSize_Bmp ()
 135                 {
 136                         using (Bitmap bmp = new Bitmap (10, 10)) {
 137                                 Image tn = bmp.GetThumbnailImage (10, 10, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
 138                                 Assert.AreEqual (10, tn.Height, "Height");
 139                                 Assert.AreEqual (10, tn.Width, "Width");
 140                                 Assert.IsFalse (callback, "Callback called");
 141                                 tn.Save (fname, ImageFormat.Bmp);
 142                         }
 143                 }
 144
 145                 [Test]
 146                 public void GetThumbnailImage_Smaller_Gif ()
 147                 {
 148                         using (Bitmap bmp = new Bitmap (10, 10)) {
 149                                 Image tn = bmp.GetThumbnailImage (4, 4, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
 150                                 Assert.AreEqual (4, tn.Height, "Height");
 151                                 Assert.AreEqual (4, tn.Width, "Width");
 152                                 Assert.IsFalse (callback, "Callback called");
 153                                 tn.Save (fname, ImageFormat.Gif);
 154                         }
 155                 }
 156
 157                 [Test]
 158                 public void GetThumbnailImage_Bigger_Png ()
 159                 {
 160                         using (Bitmap bmp = new Bitmap (10, 10)) {
 161                                 Image tn = bmp.GetThumbnailImage (40, 40, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
 162                                 Assert.AreEqual (40, tn.Height, "Height");
 163                                 Assert.AreEqual (40, tn.Width, "Width");
 164                                 Assert.IsFalse (callback, "Callback called");
 165                                 tn.Save (fname, ImageFormat.Png);
 166                         }
 167                 }
 168
 169                 [Test]
 170 #if !NET_2_0
 171                 [Category ("NotDotNet")] // MS 1.x throws an ArgumentNullException in this case
 172 #endif
 173                 public void Stream_Unlocked ()
 174                 {
 175                         try {
 176                                 Image img = null;
 177                                 using (MemoryStream ms = new MemoryStream ()) {
 178                                         using (Bitmap bmp = new Bitmap (10, 10)) {
 179                                                 bmp.Save (ms, ImageFormat.Png);
 180                                         }
 181                                         ms.Position = 0;
 182                                         img = Image.FromStream (ms);
 183                                 }
 184                                 // stream isn't available anymore
 185                                 ((Bitmap) img).MakeTransparent (Color.Transparent);
 186                         }
 187                         catch (OutOfMemoryException) {
 188                                 int p = (int) Environment.OSVersion.Platform;
 189                                 // libgdiplus (UNIX) doesn't lazy load the image so the
 190                                 // stream may be freed (and this exception will never occur)
 191                                 if ((p == 4) || (p == 128))
 192                                         throw;
 193                         }
 194                 }
 195
 196                 [Test]
 197 #if !NET_2_0
 198                 [Category ("NotDotNet")] // MS 1.x throws an ArgumentNullException in this case
 199 #endif
 200                 public void Stream_Locked ()
 201                 {
 202                         Image img = null;
 203                         using (MemoryStream ms = new MemoryStream ()) {
 204                                 using (Bitmap bmp = new Bitmap (10, 10)) {
 205                                         bmp.Save (ms, ImageFormat.Png);
 206                                 }
 207                                 ms.Position = 0;
 208                                 img = Image.FromStream (ms);
 209                                 // stream is available
 210                                 ((Bitmap) img).MakeTransparent (Color.Transparent);
 211                         }
 212                 }
 213
 214                 [Test]
 215 #if NET_2_0
 216                 [Category ("NotWorking")]       // http://bugzilla.ximian.com/show_bug.cgi?id=80558
 217 #else
 218                 [ExpectedException (typeof (InvalidOperationException))]
 219 #endif
 220                 public void XmlSerialize ()
 221                 {
 222                         new XmlSerializer (typeof (Image));
 223                 }
 224
 225                 private void Wmf (Image img)
 226                 {
 227                         Assert.IsFalse (img is Bitmap, "Bitmap");
 228                         Assert.IsTrue (img is Metafile, "Metafile");
 229                         // as Image
 230                         Assert.AreEqual (327683, img.Flags, "Flags");
 231                         Assert.IsTrue (img.RawFormat.Equals (ImageFormat.Wmf), "Wmf");
 232 #if NET_2_0
 233                         Assert.IsNull (img.Tag, "Tag");
 234 #endif
 235                 }
 236
 237                 [Test]
 238                 public void FromFile_Metafile_Wmf ()
 239                 {
 240                         string filename = TestBitmap.getInFile ("bitmaps/telescope_01.wmf");
 241                         using (Image img = Image.FromFile (filename)) {
 242                                 Wmf (img);
 243                         }
 244                 }
 245
 246                 [Test]
 247                 public void FromStream_Metafile_Wmf ()
 248                 {
 249                         string filename = TestBitmap.getInFile ("bitmaps/telescope_01.wmf");
 250                         using (FileStream fs = File.OpenRead (filename)) {
 251                                 using (Image img = Image.FromStream (fs)) {
 252                                         Wmf (img);
 253                                 }
 254                         }
 255                 }
 256
 257                 private void Emf (Image img)
 258                 {
 259                         Assert.IsFalse (img is Bitmap, "Bitmap");
 260                         Assert.IsTrue (img is Metafile, "Metafile");
 261                         // as Image
 262                         Assert.AreEqual (327683, img.Flags, "Flags");
 263                         Assert.IsTrue (img.RawFormat.Equals (ImageFormat.Emf), "Emf");
 264 #if NET_2_0
 265                         Assert.IsNull (img.Tag, "Tag");
 266 #endif
 267                 }
 268
 269                 [Test]
 270                 public void FromFile_Metafile_Emf ()
 271                 {
 272                         string filename = TestBitmap.getInFile ("bitmaps/milkmateya01.emf");
 273                         using (Image img = Image.FromFile (filename)) {
 274                                 Emf (img);
 275                         }
 276                 }
 277
 278                 [Test]
 279                 public void FromStream_Metafile_Emf ()
 280                 {
 281                         string filename = TestBitmap.getInFile ("bitmaps/milkmateya01.emf");
 282                         using (FileStream fs = File.OpenRead (filename)) {
 283                                 using (Image img = Image.FromStream (fs)) {
 284                                         Emf (img);
 285                                 }
 286                         }
 287                 }
 288         }
 289 }