//
// Image class testing unit
//
-// Author:
-//
-// Jordi Mas i Hernàndez (jmas@softcatala.org>
+// Authors:
+// Jordi Mas i Hernàndez (jmas@softcatala.org>
+// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2005 Ximian, Inc. http://www.ximian.com
-//
-
-//
-// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2005-2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
+
using System;
using System.Drawing;
using System.Drawing.Imaging;
-using NUnit.Framework;
using System.IO;
-using System.Runtime.InteropServices;
using System.Security.Permissions;
+using NUnit.Framework;
namespace MonoTests.System.Drawing{
[TestFixture]
[SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
- public class TestImage {
+ public class ImageTest {
+ private string fname;
+ private bool callback;
+
+ [TestFixtureSetUp]
+ public void FixtureSetup ()
+ {
+ fname = Path.GetTempFileName ();
+ }
+
+ [TestFixtureTearDown]
+ public void FixtureTearDown ()
+ {
+ try {
+ File.Delete (fname);
+ }
+ catch {
+ }
+ }
+
+ [SetUp]
+ public void SetUp ()
+ {
+ callback = false;
+ }
[Test]
[ExpectedException (typeof (FileNotFoundException))]
public void FileDoesNotExists ()
{
- Image img = Image.FromFile ("FileDoesNotExists.jpg");
+ Image.FromFile ("FileDoesNotExists.jpg");
+ }
+
+ private bool CallbackTrue ()
+ {
+ callback = true;
+ return true;
+ }
+
+ private bool CallbackFalse ()
+ {
+ callback = true;
+ return false;
+ }
+
+ [Test]
+ public void GetThumbnailImage_NullCallback_Tiff ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ // according to documentation a callback is mandatory
+ Image tn = bmp.GetThumbnailImage (10, 5, null, IntPtr.Zero);
+ Assert.AreEqual (5, tn.Height, "Height");
+ Assert.AreEqual (10, tn.Width, "Width");
+ Assert.IsFalse (callback, "Callback called");
+ tn.Save (fname, ImageFormat.Tiff);
+ }
+ }
+
+ [Test]
+ [ExpectedException (typeof (OutOfMemoryException))]
+ public void GetThumbnailImage_Height_Zero ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ Image tn = bmp.GetThumbnailImage (5, 0, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
+ }
+ }
+
+ [Test]
+ [ExpectedException (typeof (OutOfMemoryException))]
+ public void GetThumbnailImage_Width_Negative ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ Image tn = bmp.GetThumbnailImage (-5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
+ }
+ }
+
+ [Test]
+ public void GetThumbnailImage_CallbackData_Invalid ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ // according to documentation IntPtr.Zero must be supplied as data
+ Image tn = bmp.GetThumbnailImage (5, 5, new Image.GetThumbnailImageAbort (CallbackFalse), (IntPtr)Int32.MaxValue);
+ Assert.AreEqual (5, tn.Height, "Height");
+ Assert.AreEqual (5, tn.Width, "Width");
+ Assert.IsFalse (callback, "Callback called");
+ tn.Save (fname, ImageFormat.Tiff);
+ }
+ }
+
+ [Test]
+ public void GetThumbnailImage_SameSize_Bmp ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ Image tn = bmp.GetThumbnailImage (10, 10, new Image.GetThumbnailImageAbort (CallbackFalse), IntPtr.Zero);
+ Assert.AreEqual (10, tn.Height, "Height");
+ Assert.AreEqual (10, tn.Width, "Width");
+ Assert.IsFalse (callback, "Callback called");
+ tn.Save (fname, ImageFormat.Bmp);
+ }
+ }
+
+ [Test]
+ public void GetThumbnailImage_Smaller_Gif ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ Image tn = bmp.GetThumbnailImage (4, 4, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
+ Assert.AreEqual (4, tn.Height, "Height");
+ Assert.AreEqual (4, tn.Width, "Width");
+ Assert.IsFalse (callback, "Callback called");
+ tn.Save (fname, ImageFormat.Gif);
+ }
+ }
+
+ [Test]
+ public void GetThumbnailImage_Bigger_Png ()
+ {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ Image tn = bmp.GetThumbnailImage (40, 40, new Image.GetThumbnailImageAbort (CallbackTrue), IntPtr.Zero);
+ Assert.AreEqual (40, tn.Height, "Height");
+ Assert.AreEqual (40, tn.Width, "Width");
+ Assert.IsFalse (callback, "Callback called");
+ tn.Save (fname, ImageFormat.Png);
+ }
+ }
+
+ [Test]
+ public void Stream_Unlocked ()
+ {
+ try {
+ Image img = null;
+ using (MemoryStream ms = new MemoryStream ()) {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ bmp.Save (ms, ImageFormat.Png);
+ }
+ ms.Position = 0;
+ img = Image.FromStream (ms);
+ }
+ // stream isn't available anymore
+ ((Bitmap) img).MakeTransparent (Color.Transparent);
+ }
+ catch (OutOfMemoryException) {
+ int p = (int) Environment.OSVersion.Platform;
+ // libgdiplus (UNIX) doesn't lazy load the image so the
+ // stream may be freed (and this exception will never occur)
+ if ((p == 4) || (p == 128))
+ throw;
+ }
+ }
+
+ [Test]
+ public void Stream_Locked ()
+ {
+ Image img = null;
+ using (MemoryStream ms = new MemoryStream ()) {
+ using (Bitmap bmp = new Bitmap (10, 10)) {
+ bmp.Save (ms, ImageFormat.Png);
+ }
+ ms.Position = 0;
+ img = Image.FromStream (ms);
+ // stream is available
+ ((Bitmap) img).MakeTransparent (Color.Transparent);
+ }
}
}
}
projects / mono.git / blobdiff