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             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                 .ConfigureAwait(false);
  63
  64             stream.Seek(0, SeekOrigin.Begin);
  65
  66             using var image = MemoryImage.CopyFromStream(stream);
  67             Assert.Equal(memstream.ToArray(), image.Stream.ToArray());
  68         }
  69
  70         [Fact]
  71         public async Task CopyFromStreamAsync_Test()
  72         {
  73             using var stream = File.OpenRead("Resources/re.gif");
  74             using var memstream = new MemoryStream();
  75             await stream.CopyToAsync(memstream)
  76                 .ConfigureAwait(false);
  77
  78             stream.Seek(0, SeekOrigin.Begin);
  79
  80             using var image = await MemoryImage.CopyFromStreamAsync(stream)
  81                 .ConfigureAwait(false);
  82             Assert.Equal(memstream.ToArray(), image.Stream.ToArray());
  83         }
  84
  85         [Fact]
  86         public async Task CopyFromBytes_Test()
  87         {
  88             using var stream = File.OpenRead("Resources/re.gif");
  89             using var memstream = new MemoryStream();
  90             await stream.CopyToAsync(memstream)
  91                 .ConfigureAwait(false);
  92             var imageBytes = memstream.ToArray();
  93
  94             using var image = MemoryImage.CopyFromBytes(imageBytes);
  95             Assert.Equal(imageBytes, image.Stream.ToArray());
  96         }
  97
  98         [Fact]
  99         public void CopyFromImage_Test()
 100         {
 101             using var bitmap = new Bitmap(width: 200, height: 200);
 102
 103             // MemoryImage をエラー無く作成できることをテストする
 104             using var image = MemoryImage.CopyFromImage(bitmap);
 105         }
 106
 107         [Fact]
 108         public void Dispose_Test()
 109         {
 110             using var image = TestUtils.CreateDummyImage();
 111             Assert.False(image.IsDisposed);
 112
 113             image.Dispose();
 114
 115             Assert.True(image.IsDisposed);
 116             Assert.Throws<ObjectDisposedException>(() => image.Image);
 117             Assert.Throws<ObjectDisposedException>(() => image.ImageFormat);
 118         }
 119
 120         [Fact]
 121         public async Task Equals_Test()
 122         {
 123             using var imgStream1 = File.OpenRead("Resources/re.gif");
 124             using var image1 = await MemoryImage.CopyFromStreamAsync(imgStream1).ConfigureAwait(false);
 125
 126             using var imgStream2 = File.OpenRead("Resources/re.gif");
 127             using var image2 = await MemoryImage.CopyFromStreamAsync(imgStream2).ConfigureAwait(false);
 128             Assert.True(image1.Equals(image2));
 129             Assert.True(image2.Equals(image1));
 130
 131             using var image3 = TestUtils.CreateDummyImage();
 132             Assert.False(image1.Equals(image3));
 133             Assert.False(image3.Equals(image1));
 134         }
 135     }
 136 }