OpenTween.Tests/OTPictureBoxTest.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2014 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.Linq;
  23 using System.Threading;
  24 using System.Threading.Tasks;
  25 using System.Windows.Forms;
  26 using Xunit;
  27
  28 namespace OpenTween
  29 {
  30     public class OTPictureBoxTest
  31     {
  32         [WinFormsFact]
  33         public void SizeMode_SetterGetterTest()
  34         {
  35             using var picbox = new OTPictureBox();
  36             picbox.SizeMode = PictureBoxSizeMode.Zoom;
  37
  38             Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
  39             Assert.Equal(PictureBoxSizeMode.Zoom, ((PictureBox)picbox).SizeMode);
  40         }
  41
  42         [WinFormsFact]
  43         public void SizeMode_ErrorImageTest()
  44         {
  45             using var picbox = new OTPictureBox();
  46             picbox.SizeMode = PictureBoxSizeMode.Zoom;
  47
  48             picbox.ShowErrorImage();
  49
  50             Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
  51             Assert.Equal(PictureBoxSizeMode.CenterImage, ((PictureBox)picbox).SizeMode);
  52         }
  53
  54         [WinFormsFact]
  55         public void SizeMode_ErrorImageTest2()
  56         {
  57             using var picbox = new OTPictureBox();
  58             picbox.ShowErrorImage();
  59
  60             picbox.SizeMode = PictureBoxSizeMode.Zoom;
  61
  62             Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
  63             Assert.Equal(PictureBoxSizeMode.CenterImage, ((PictureBox)picbox).SizeMode);
  64         }
  65
  66         [WinFormsFact]
  67         public void SizeMode_RestoreTest()
  68         {
  69             using var picbox = new OTPictureBox();
  70             picbox.SizeMode = PictureBoxSizeMode.Zoom;
  71
  72             picbox.ShowErrorImage();
  73
  74             picbox.Image = TestUtils.CreateDummyImage();
  75
  76             Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
  77             Assert.Equal(PictureBoxSizeMode.Zoom, ((PictureBox)picbox).SizeMode);
  78         }
  79
  80         [WinFormsFact]
  81         public async Task SetImageFromAsync_Test()
  82         {
  83             using var picbox = new OTPictureBox();
  84
  85             var tcs = new TaskCompletionSource<MemoryImage>();
  86
  87             var setImageTask = picbox.SetImageFromTask(() => tcs.Task);
  88
  89             Assert.Equal(picbox.InitialImage, ((PictureBox)picbox).Image);
  90
  91             var image = TestUtils.CreateDummyImage();
  92             tcs.SetResult(image);
  93             await setImageTask;
  94
  95             Assert.Equal(image, picbox.Image);
  96         }
  97
  98         [WinFormsFact]
  99         public async Task SetImageFromAsync_ErrorTest()
 100         {
 101             using var picbox = new OTPictureBox();
 102
 103             var tcs = new TaskCompletionSource<MemoryImage>();
 104
 105             var setImageTask = picbox.SetImageFromTask(() => tcs.Task);
 106
 107             Assert.Equal(picbox.InitialImage, ((PictureBox)picbox).Image);
 108
 109             tcs.SetException(new InvalidImageException());
 110             await setImageTask;
 111
 112             Assert.Equal(picbox.ErrorImage, ((PictureBox)picbox).Image);
 113         }
 114
 115         [WinFormsFact]
 116         public async Task SetImageFromAsync_OutdatedTest()
 117         {
 118             using var picbox = new OTPictureBox();
 119
 120             // 1回目
 121             var tcs1 = new TaskCompletionSource<MemoryImage>();
 122             var setImageTask1 = picbox.SetImageFromTask(() => tcs1.Task);
 123
 124             // 2回目
 125             var tcs2 = new TaskCompletionSource<MemoryImage>();
 126             var setImageTask2 = picbox.SetImageFromTask(() => tcs2.Task);
 127
 128             Assert.Same(picbox.InitialImage, ((PictureBox)picbox).Image);
 129
 130             // 2回目のタスクが先に完了する
 131             using var image2 = TestUtils.CreateDummyImage();
 132             tcs2.SetResult(image2);
 133             await setImageTask2;
 134             Assert.Same(image2, picbox.Image);
 135
 136             // 1回目のタスクが完了したとしても、最後に呼んだ SetImageFromTask の画像を表示し続ける
 137             using var image1 = TestUtils.CreateDummyImage();
 138             tcs1.SetResult(image1);
 139             await setImageTask1;
 140             Assert.Same(image2, picbox.Image);
 141         }
 142
 143         [WinFormsFact]
 144         public async Task SetImageFromAsync_OutdatedByImageSetterTest()
 145         {
 146             using var picbox = new OTPictureBox();
 147
 148             // 1回目
 149             var tcs1 = new TaskCompletionSource<MemoryImage>();
 150             var setImageTask1 = picbox.SetImageFromTask(() => tcs1.Task);
 151
 152             // 2回目 (set_Image による同期的な更新)
 153             using var image2 = TestUtils.CreateDummyImage();
 154             picbox.Image = image2;
 155             Assert.Same(image2, picbox.Image);
 156
 157             // 1回目のタスクが完了したとしても、最後にセットされた Image の画像を表示し続ける
 158             using var image1 = TestUtils.CreateDummyImage();
 159             tcs1.SetResult(image1);
 160             await setImageTask1;
 161             Assert.Same(image2, picbox.Image);
 162         }
 163     }
 164 }