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);
  41             Assert.Equal(ImageFormat.Gif, image.ImageFormat);
  42             Assert.Equal(".gif", image.ImageFormatExt);
  43         }
  44
  45         [Fact]
  46         public void ImageFormat_CopyFromImageTest()
  47         {
  48             using var bitmap = new Bitmap(width: 200, height: 200);
  49             using var image = MemoryImage.CopyFromImage(bitmap);
  50
  51             // CopyFromImage から作成した MemoryImage は PNG 画像として扱われる
  52             Assert.Equal(ImageFormat.Png, image.ImageFormat);
  53             Assert.Equal(".png", image.ImageFormatExt);
  54         }
  55
  56         [Fact]
  57         public async Task CopyFromStream_Test()
  58         {
  59             using var stream = File.OpenRead("Resources/re.gif");
  60             using var memstream = new MemoryStream();
  61             await stream.CopyToAsync(memstream);
  62
  63             stream.Seek(0, SeekOrigin.Begin);
  64
  65             using var image = MemoryImage.CopyFromStream(stream);
  66             Assert.Equal(memstream.ToArray(), image.Stream.ToArray());
  67         }
  68
  69         [Fact]
  70         public async Task CopyFromStreamAsync_Test()
  71         {
  72             using var stream = File.OpenRead("Resources/re.gif");
  73             using var memstream = new MemoryStream();
  74             await stream.CopyToAsync(memstream);
  75
  76             stream.Seek(0, SeekOrigin.Begin);
  77
  78             using var image = await MemoryImage.CopyFromStreamAsync(stream);
  79             Assert.Equal(memstream.ToArray(), image.Stream.ToArray());
  80         }
  81
  82         [Fact]
  83         public async Task CopyFromBytes_Test()
  84         {
  85             using var stream = File.OpenRead("Resources/re.gif");
  86             using var memstream = new MemoryStream();
  87             await stream.CopyToAsync(memstream);
  88             var imageBytes = memstream.ToArray();
  89
  90             using var image = MemoryImage.CopyFromBytes(imageBytes);
  91             Assert.Equal(imageBytes, image.Stream.ToArray());
  92         }
  93
  94         [Fact]
  95         public void CopyFromImage_Test()
  96         {
  97             using var bitmap = new Bitmap(width: 200, height: 200);
  98
  99             // MemoryImage をエラー無く作成できることをテストする
 100             using var image = MemoryImage.CopyFromImage(bitmap);
 101         }
 102
 103         [Fact]
 104         public void Dispose_Test()
 105         {
 106             using var image = TestUtils.CreateDummyImage();
 107             Assert.False(image.IsDisposed);
 108
 109             image.Dispose();
 110
 111             Assert.True(image.IsDisposed);
 112             Assert.Throws<ObjectDisposedException>(() => image.Image);
 113             Assert.Throws<ObjectDisposedException>(() => image.ImageFormat);
 114         }
 115
 116         [Fact]
 117         public async Task Equals_Test()
 118         {
 119             using var imgStream1 = File.OpenRead("Resources/re.gif");
 120             using var image1 = await MemoryImage.CopyFromStreamAsync(imgStream1);
 121
 122             using var imgStream2 = File.OpenRead("Resources/re.gif");
 123             using var image2 = await MemoryImage.CopyFromStreamAsync(imgStream2);
 124             Assert.True(image1.Equals(image2));
 125             Assert.True(image2.Equals(image1));
 126
 127             using var image3 = TestUtils.CreateDummyImage();
 128             Assert.False(image1.Equals(image3));
 129             Assert.False(image3.Equals(image1));
 130         }
 131     }
 132 }