// OpenTween - Client of Twitter
// Copyright (c) 2014 kim_upsilon (@kim_upsilon)
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see , or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using Xunit;
namespace OpenTween
{
public class OTPictureBoxTest
{
[WinFormsFact]
public void SizeMode_SetterGetterTest()
{
using var picbox = new OTPictureBox();
picbox.SizeMode = PictureBoxSizeMode.Zoom;
Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
Assert.Equal(PictureBoxSizeMode.Zoom, ((PictureBox)picbox).SizeMode);
}
[WinFormsFact]
public void SizeMode_ErrorImageTest()
{
using var picbox = new OTPictureBox();
picbox.SizeMode = PictureBoxSizeMode.Zoom;
picbox.ShowErrorImage();
Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
Assert.Equal(PictureBoxSizeMode.CenterImage, ((PictureBox)picbox).SizeMode);
}
[WinFormsFact]
public void SizeMode_ErrorImageTest2()
{
using var picbox = new OTPictureBox();
picbox.ShowErrorImage();
picbox.SizeMode = PictureBoxSizeMode.Zoom;
Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
Assert.Equal(PictureBoxSizeMode.CenterImage, ((PictureBox)picbox).SizeMode);
}
[WinFormsFact]
public void SizeMode_RestoreTest()
{
using var picbox = new OTPictureBox();
picbox.SizeMode = PictureBoxSizeMode.Zoom;
picbox.ShowErrorImage();
picbox.Image = TestUtils.CreateDummyImage();
Assert.Equal(PictureBoxSizeMode.Zoom, picbox.SizeMode);
Assert.Equal(PictureBoxSizeMode.Zoom, ((PictureBox)picbox).SizeMode);
}
[WinFormsFact]
public async Task SetImageFromAsync_Test()
{
using var picbox = new OTPictureBox();
var tcs = new TaskCompletionSource();
var setImageTask = picbox.SetImageFromTask(() => tcs.Task);
Assert.Equal(picbox.InitialImage, ((PictureBox)picbox).Image);
var image = TestUtils.CreateDummyImage();
tcs.SetResult(image);
await setImageTask;
Assert.Equal(image, picbox.Image);
}
[WinFormsFact]
public async Task SetImageFromAsync_ErrorTest()
{
using var picbox = new OTPictureBox();
var tcs = new TaskCompletionSource();
var setImageTask = picbox.SetImageFromTask(() => tcs.Task);
Assert.Equal(picbox.InitialImage, ((PictureBox)picbox).Image);
tcs.SetException(new InvalidImageException());
await setImageTask;
Assert.Equal(picbox.ErrorImage, ((PictureBox)picbox).Image);
}
[WinFormsFact]
public async Task SetImageFromAsync_OutdatedTest()
{
using var picbox = new OTPictureBox();
// 1回目
var tcs1 = new TaskCompletionSource();
var setImageTask1 = picbox.SetImageFromTask(() => tcs1.Task);
// 2回目
var tcs2 = new TaskCompletionSource();
var setImageTask2 = picbox.SetImageFromTask(() => tcs2.Task);
Assert.Same(picbox.InitialImage, ((PictureBox)picbox).Image);
// 2回目のタスクが先に完了する
using var image2 = TestUtils.CreateDummyImage();
tcs2.SetResult(image2);
await setImageTask2;
Assert.Same(image2, picbox.Image);
// 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
using var image1 = TestUtils.CreateDummyImage();
tcs1.SetResult(image1);
await setImageTask1;
Assert.Same(image2, picbox.Image);
}
[WinFormsFact]
public async Task SetImageFromAsync_OutdatedByImageSetterTest()
{
using var picbox = new OTPictureBox();
// 1回目
var tcs1 = new TaskCompletionSource();
var setImageTask1 = picbox.SetImageFromTask(() => tcs1.Task);
// 2回目 (set_Image による同期的な更新)
using var image2 = TestUtils.CreateDummyImage();
picbox.Image = image2;
Assert.Same(image2, picbox.Image);
// 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
using var image1 = TestUtils.CreateDummyImage();
tcs1.SetResult(image1);
await setImageTask1;
Assert.Same(image2, picbox.Image);
}
}
}