public void BeginEndConvertPixelFormatImmediateCancelTest()
{
using var ref32bpp = Icons.Information.ExtractBitmap(new Size(256, 256));
Assert.AreEqual(32, ref32bpp.GetBitsPerPixel());
IAsyncResult ar = ref32bpp.BeginConvertPixelFormat(PixelFormat.Format8bppIndexed,
asyncConfig: new AsyncConfig(null, () => true));
Assert.IsTrue(ar.IsCompleted);
Assert.IsTrue(ar.CompletedSynchronously);
Assert.Throws <OperationCanceledException>(() => ImageExtensions.EndConvertPixelFormat(ar));
}
public void BeginEndConvertPixelFormatBlockingWaitTest()
{
using var ref32bpp = Icons.Information.ExtractBitmap(new Size(256, 256));
Assert.AreEqual(32, ref32bpp.GetBitsPerPixel());
IAsyncResult ar = ref32bpp.BeginConvertPixelFormat(PixelFormat.Format8bppIndexed);
Assert.IsFalse(ar.IsCompleted);
Bitmap result = ImageExtensions.EndConvertPixelFormat(ar);
Assert.IsTrue(ar.IsCompleted);
Assert.IsFalse(ar.CompletedSynchronously);
Assert.IsNotNull(result);
}
public void BeginEndConvertPixelFormatWithCallbackTest()
{
using var ref32bpp = Icons.Information.ExtractBitmap(new Size(256, 256));
Assert.AreEqual(32, ref32bpp.GetBitsPerPixel());
var syncRoot = new object();
Bitmap result = null;
IAsyncResult ar = ref32bpp.BeginConvertPixelFormat(PixelFormat.Format8bppIndexed,
asyncConfig: new AsyncConfig(ar =>
{
lock (syncRoot)
result = ImageExtensions.EndConvertPixelFormat(ar);
}));
Assert.IsFalse(ar.IsCompleted);
Assert.IsNull(result);
ar.AsyncWaitHandle.WaitOne();
Assert.IsTrue(ar.IsCompleted);
Assert.IsFalse(ar.CompletedSynchronously);
lock (syncRoot)
Assert.IsNotNull(result);
}