public async Task LoadNativeThumbnailAsync_ReturnExceptionsThrownByFileSystem()
{
var entity = new FileEntity("test");
_fileSystem
.Setup(mock => mock.ReadAllBytes(entity.Path))
.Throws(new Exception("IO exception"));
var exception = "";
try
{
var image = await _loader.LoadNativeThumbnailAsync(entity, new Size(1, 1), CancellationToken.None);
}
catch (Exception e)
{
exception = e.Message;
}
Assert.AreEqual("IO exception", exception);
Assert.IsNull(entity.GetValue <ImageValue>(ExifAttributeReaderFactory.Thumbnail));
}
public async Task LoadNativeThumbnailAsync_DisposeIntermediateResults()
{
var originalImage = new BitmapMock();
var thumbnailImage = new BitmapMock();
var entity = new FileEntity("test");
_fileSystem
.Setup(mock => mock.ReadAllBytes(entity.Path))
.Returns(new byte[] { 0x42 });
_imageLoader
.Setup(mock => mock.LoadImage(entity, It.Is <Stream>(stream => stream.ReadByte() == 0x42 && stream.ReadByte() < 0)))
.Returns(originalImage);
_thumbnailGenerator
.Setup(mock => mock.GetThumbnail(originalImage, new Size(1, 1)))
.Returns(thumbnailImage);
Assert.IsFalse(originalImage.IsDisposed);
Assert.IsFalse(thumbnailImage.IsDisposed);
var image = await _loader.LoadNativeThumbnailAsync(entity, new Size(1, 1), CancellationToken.None);
Assert.IsNotNull(entity.GetValue <ImageValue>(ExifAttributeReaderFactory.Thumbnail));
Assert.IsTrue(originalImage.IsDisposed);
Assert.IsTrue(thumbnailImage.IsDisposed);
}