OpenTween.Tests/MemoryImageTest.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2015 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
   3 // All rights reserved.
   4 //
   5 // This file is part of OpenTween.
   6 //
   7 // This program is free software; you can redistribute it and/or modify it
   8 // under the terms of the GNU General Public License as published by the Free
   9 // Software Foundation; either version 3 of the License, or (at your option)
  10 // any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15 // for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
  19 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  20 // Boston, MA 02110-1301, USA.
  21
  22 using System;
  23 using System.Collections.Generic;
  24 using System.Drawing;
  25 using System.Drawing.Imaging;
  26 using System.IO;
  27 using System.Linq;
  28 using System.Text;
  29 using System.Threading.Tasks;
  30 using Xunit;
  31
  32 namespace OpenTween
  33 {
  34     public class MemoryImageTest
  35     {
  36         [Fact]
  37         public async Task ImageFormat_GifTest()
  38         {
  39             using (var imgStream = File.OpenRead("Resources/re.gif"))
  40             using (var image = await MemoryImage.CopyFromStreamAsync(imgStream).ConfigureAwait(false))
  41             {
  42                 Assert.Equal(ImageFormat.Gif, image.ImageFormat);
  43                 Assert.Equal(".gif", image.ImageFormatExt);
  44             }
  45         }
  46
  47         [Fact]
  48         public void ImageFormat_CopyFromImageTest()
  49         {
  50             using (var bitmap = new Bitmap(width: 200, height: 200))
  51             using (var image = MemoryImage.CopyFromImage(bitmap))
  52             {
  53                 // CopyFromImage から作成した MemoryImage は PNG 画像として扱われる
  54                 Assert.Equal(ImageFormat.Png, image.ImageFormat);
  55                 Assert.Equal(".png", image.ImageFormatExt);
  56             }
  57         }
  58
  59         [Fact]
  60         public void CopyFromImage_Test()
  61         {
  62             using (var bitmap = new Bitmap(width: 200, height: 200))
  63             {
  64                 // MemoryImage をエラー無く作成できることをテストする
  65                 using (var image = MemoryImage.CopyFromImage(bitmap)) { }
  66             }
  67         }
  68
  69         [Fact]
  70         public void Dispose_Test()
  71         {
  72             using (var image = TestUtils.CreateDummyImage())
  73             {
  74                 Assert.False(image.IsDisposed);
  75
  76                 image.Dispose();
  77
  78                 Assert.True(image.IsDisposed);
  79                 Assert.Throws<ObjectDisposedException>(() => image.Image);
  80                 Assert.Throws<ObjectDisposedException>(() => image.ImageFormat);
  81             }
  82         }
  83
  84         [Fact]
  85         public async Task Equals_Test()
  86         {
  87             using (var imgStream1 = File.OpenRead("Resources/re.gif"))
  88             using (var image1 = await MemoryImage.CopyFromStreamAsync(imgStream1).ConfigureAwait(false))
  89             {
  90                 using (var imgStream2 = File.OpenRead("Resources/re.gif"))
  91                 using (var image2 = await MemoryImage.CopyFromStreamAsync(imgStream2).ConfigureAwait(false))
  92                 {
  93                     Assert.True(image1.Equals(image2));
  94                     Assert.True(image2.Equals(image1));
  95                 }
  96
  97                 using (var image3 = TestUtils.CreateDummyImage())
  98                 {
  99                     Assert.False(image1.Equals(image3));
 100                     Assert.False(image3.Equals(image1));
 101                 }
 102             }
 103         }
 104     }
 105 }