mono/mcs/class/System.Drawing/Test/System.Drawing/TestImageConverter.cs

//
// Tests for System.Drawing.ImageConverter.cs 
//
// Author:
//	Sanjay Gupta ([email protected])
//

//
// Copyright (C) 2004 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
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// 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 NUnit.Framework;
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Collections;
using System.ComponentModel;
using System.Globalization;
using System.IO;

namespace MonoTests.System.Drawing
{
	[TestFixture]	
	public class ImageConverterTest 
	{
		Image image;		
		ImageConverter imgConv;
		ImageConverter imgConvFrmTD;
		String imageStr;
		byte [] imageBytes;

		[TearDown]
		public void TearDown () {}

		[SetUp]
		public void SetUp ()		
		{
			image = Image.FromFile (TestBitmap.getInFile ("bitmaps/almogaver24bits.bmp"));
			imageStr = image.ToString ();
		
			imgConv = new ImageConverter();
			imgConvFrmTD = (ImageConverter) TypeDescriptor.GetConverter (image);
			
			Stream stream = new FileStream (TestBitmap.getInFile ("bitmaps/almogaver24bits1.bmp"), FileMode.Open);
			int length = (int) stream.Length;
			imageBytes = new byte [length];
 			
			try {
				if (stream.Read (imageBytes, 0, length) != length)
					Assert.Fail ("SU#1: Read Failure"); 
			} catch (Exception e) {
				Assert.Fail ("SU#2 Exception thrown while reading. Exception is: "+e.Message);
			} finally {
				stream.Close ();
			}
		
			stream.Close ();

		}

		[Test]
		public void TestCanConvertFrom ()
		{
			Assert.IsTrue (imgConv.CanConvertFrom (typeof (byte [])), "CCF#1");
			Assert.IsTrue (imgConv.CanConvertFrom (null, typeof (byte [])), "CCF#1a");
			Assert.IsTrue (imgConv.CanConvertFrom (null, imageBytes.GetType ()), "CCF#1b");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (String)), "CCF#2");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (Rectangle)), "CCF#3");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (Point)), "CCF#4");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (PointF)), "CCF#5");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (Size)), "CCF#6");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (SizeF)), "CCF#7");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (Object)), "CCF#8");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (int)), "CCF#9");
			Assert.IsTrue (! imgConv.CanConvertFrom (null, typeof (Metafile)), "CCF#10");

			Assert.IsTrue (imgConvFrmTD.CanConvertFrom (typeof (byte [])), "CCF#1A");
			Assert.IsTrue (imgConvFrmTD.CanConvertFrom (null, typeof (byte [])), "CCF#1aA");
			Assert.IsTrue (imgConvFrmTD.CanConvertFrom (null, imageBytes.GetType ()), "CCF#1bA");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (String)), "CCF#2A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (Rectangle)), "CCF#3A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (Point)), "CCF#4A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (PointF)), "CCF#5A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (Size)), "CCF#6A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (SizeF)), "CCF#7A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (Object)), "CCF#8A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (int)), "CCF#9A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertFrom (null, typeof (Metafile)), "CCF#10A");

		}

		[Test]
		public void TestCanConvertTo ()
		{
			Assert.IsTrue (imgConv.CanConvertTo (typeof (String)), "CCT#1");
			Assert.IsTrue (imgConv.CanConvertTo (null, typeof (String)), "CCT#1a");
			Assert.IsTrue (imgConv.CanConvertTo (null, imageStr.GetType ()), "CCT#1b");
			Assert.IsTrue (imgConv.CanConvertTo (typeof (byte [])), "CCT#2");
			Assert.IsTrue (imgConv.CanConvertTo (null, typeof (byte [])), "CCT#2a");
			Assert.IsTrue (imgConv.CanConvertTo (null, imageBytes.GetType ()), "CCT#2b");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (Rectangle)), "CCT#3");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (Point)), "CCT#4");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (PointF)), "CCT#5");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (Size)), "CCT#6");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (SizeF)), "CCT#7");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (Object)), "CCT#8");
			Assert.IsTrue (! imgConv.CanConvertTo (null, typeof (int)), "CCT#9");

			Assert.IsTrue (imgConvFrmTD.CanConvertTo (typeof (String)), "CCT#1A");
			Assert.IsTrue (imgConvFrmTD.CanConvertTo (null, typeof (String)), "CCT#1aA");
			Assert.IsTrue (imgConvFrmTD.CanConvertTo (null, imageStr.GetType ()), "CCT#1bA");
			Assert.IsTrue (imgConvFrmTD.CanConvertTo (typeof (byte [])), "CCT#2A");
			Assert.IsTrue (imgConvFrmTD.CanConvertTo (null, typeof (byte [])), "CCT#2aA");
			Assert.IsTrue (imgConvFrmTD.CanConvertTo (null, imageBytes.GetType ()), "CCT#2bA");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (Rectangle)), "CCT#3A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (Point)), "CCT#4A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (PointF)), "CCT#5A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (Size)), "CCT#6A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (SizeF)), "CCT#7A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (Object)), "CCT#8A");
			Assert.IsTrue (! imgConvFrmTD.CanConvertTo (null, typeof (int)), "CCT#9A");

		}

		[Test]
		public void TestConvertFrom ()
		{
			Image newImage = (Image) imgConv.ConvertFrom (null, CultureInfo.InvariantCulture, imageBytes);
			
			Assert.AreEqual (image.Height, newImage.Height, "CF#1");
			Assert.AreEqual (image.Width, newImage.Width, "CF#1a");
			
			try {
				imgConv.ConvertFrom ("System.Drawing.String");
				Assert.Fail ("CF#2: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#2");
			}

			try {
				imgConv.ConvertFrom (null, CultureInfo.InvariantCulture,
						   "System.Drawing.String");
				Assert.Fail ("CF#2a: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#2a");
			}

			try {
				imgConv.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Bitmap (20, 20));
				Assert.Fail ("CF#3: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#3");
			}

			try {
				imgConv.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Point (10, 10));
				Assert.Fail ("CF#4: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#4");
			}

			try {
				imgConv.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new SizeF (10, 10));
				Assert.Fail ("CF#5: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#5");
			}

			try {
				imgConv.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Object ());
				Assert.Fail ("CF#6: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#6");
			}


			newImage = (Image) imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture, imageBytes);

			Assert.AreEqual (image.Height, newImage.Height, "CF#1A");
			Assert.AreEqual (image.Width, newImage.Width, "CF#1aA");
			
			
			try {
				imgConvFrmTD.ConvertFrom ("System.Drawing.String");
				Assert.Fail ("CF#2A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#2A");
			}

			try {
				imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture,
						   "System.Drawing.String");
				Assert.Fail ("CF#2aA: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#2aA");
			}

			try {
				imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Bitmap (20, 20));
				Assert.Fail ("CF#3A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#3A");
			}

			try {
				imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Point (10, 10));
				Assert.Fail ("CF#4A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#4A");
			}

			try {
				imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new SizeF (10, 10));
				Assert.Fail ("CF#5A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#5A");
			}

			try {
				imgConvFrmTD.ConvertFrom (null, CultureInfo.InvariantCulture,
						   new Object ());
				Assert.Fail ("CF#6A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CF#6A");
			}

		}

		[Test]
		public void TestConvertTo ()
		{
			Assert.AreEqual (imageStr, (String) imgConv.ConvertTo (null,
								CultureInfo.InvariantCulture,
								image, typeof (String)), "CT#1");

			Assert.AreEqual (imageStr, (String) imgConv.ConvertTo (image, 
									typeof (String)), "CT#1a");
				
			/*byte [] newImageBytes = (byte []) imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
											image, imageBytes.GetType ());

			Assert.AreEqual (imageBytes.Length, newImageBytes.Length, "CT#2");

			newImageBytes = (byte []) imgConv.ConvertTo (image, imageBytes.GetType ());
			
			Assert.AreEqual (imageBytes.Length, newImageBytes.Length, "CT#2a");
			
			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture, 
						 image, typeof (Rectangle));
				Assert.Fail ("CT#3: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#3");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, image.GetType ());
				Assert.Fail ("CT#4: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#4");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Size));
				Assert.Fail ("CT#5: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#5");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Bitmap));
				Assert.Fail ("CT#6: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#6");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Point));
				Assert.Fail ("CT#7: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#7");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Metafile));
				Assert.Fail ("CT#8: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#8");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Object));
				Assert.Fail ("CT#9: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#9");
			}

			try {
				imgConv.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (int));
				Assert.Fail ("CT#10: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#10");
			}
			*/
			
			Assert.AreEqual (imageStr, (String) imgConvFrmTD.ConvertTo (null,
								CultureInfo.InvariantCulture,
								image, typeof (String)), "CT#1A");

			Assert.AreEqual (imageStr, (String) imgConvFrmTD.ConvertTo (image, 
									typeof (String)), "CT#1aA");
				
			/*newImageBytes = (byte []) imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
											image, imageBytes.GetType ());

			Assert.AreEqual ( imageBytes.Length, newImageBytes.Length, "CT#2A");

			newImageBytes = (byte []) imgConvFrmTD.ConvertTo (image, imageBytes.GetType ());
			
			Assert.AreEqual (imageBytes.Length, newImageBytes.Length, "CT#2aA");
			
			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture, 
						 image, typeof (Rectangle));
				Assert.Fail ("CT#3A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#3A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, image.GetType ());
				Assert.Fail ("CT#4A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#4A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Size));
				Assert.Fail ("CT#5A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#5A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Bitmap));
				Assert.Fail ("CT#6A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#6A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Point));
				Assert.Fail ("CT#7A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#7A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Metafile));
				Assert.Fail ("CT#8A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#8A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (Object));
				Assert.Fail ("CT#9A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#9A");
			}

			try {
				imgConvFrmTD.ConvertTo (null, CultureInfo.InvariantCulture,
						 image, typeof (int));
				Assert.Fail ("CT#10A: must throw NotSupportedException");
			} catch (Exception e) {
				Assert.IsTrue (e is NotSupportedException, "CT#10A");
			}*/
		}

		
		[Test]
		public void TestGetPropertiesSupported ()
		{
			Assert.IsTrue (imgConv.GetPropertiesSupported (), "GPS#1");
			Assert.IsTrue (imgConv.GetPropertiesSupported (null), "GPS#2");
		}

		[Test]
		[Ignore ("This test fails because of bug #58435")]
		public void TestGetProperties ()
		{
			PropertyDescriptorCollection propsColl;

			propsColl = imgConv.GetProperties (null, image, null);
			Assert.AreEqual (13, propsColl.Count, "GP1#1");
			
			propsColl = imgConv.GetProperties (null, image);
			Assert.AreEqual (6, propsColl.Count, "GP1#2");

			propsColl = imgConv.GetProperties (image);
			Assert.AreEqual (6, propsColl.Count, "GP1#3");

			propsColl = TypeDescriptor.GetProperties (typeof (Image));
			Assert.AreEqual (13, propsColl.Count, "GP1#4");
			
			propsColl = imgConvFrmTD.GetProperties (null, image, null);
			Assert.AreEqual (13, propsColl.Count, "GP1#1A");
			
			propsColl = imgConvFrmTD.GetProperties (null, image);
			Assert.AreEqual (6, propsColl.Count, "GP1#2A");

			propsColl = imgConvFrmTD.GetProperties (image);
			Assert.AreEqual (6, propsColl.Count, "GP1#3A");
			
		}
	}
}