public void ShouldNotAllowToExecuteWhenNotProvidedWayToSetImage()
{
// Given
var command = new SetOutputImageCommand(_imageConverter)
{
OnImageUpdate = null
};
// When
// Then
Assert.IsFalse(command.CanExecute(null));
Assert.Throws <CannotExecuteCommandException>(() => command.Execute(null));
}
public void ShouldSetOutputImageToNothingWhenInputImageWasNothing()
{
// Given
BitmapSource outputImage = new BitmapImage();
var command = new SetOutputImageCommand(_imageConverter)
{
OnImageUpdate = value => outputImage = value
};
// When
command.Execute(null);
// Then
Assert.IsNull(outputImage);
}
public void ShouldSetOutputImageWhenInputImageWas8BppImage()
{
// Given
BitmapSource outputImage = null;
var imageModel = new ImageModel(2, 2, ImageBitDepth.Bpp8);
var inputImage = new Image(new byte[] { 1, 2, 3, 4 }, imageModel);
var command = new SetOutputImageCommand(_imageConverter)
{
OnImageUpdate = value => outputImage = value
};
// When
command.Execute(inputImage);
// Then
Assert.IsTrue(BitmapImageIsSameAsImage(outputImage, inputImage));
}
public void ShouldSetOutputImageWhenInputImageWas12BppImage()
{
// Given
BitmapSource outputImage = null;
var imageModel = new ImageModel(2, 2, ImageBitDepth.Bpp12);
var inputImage = new Image(new ushort[] { 0, 1024, 2048, 4095 }, imageModel);
var expectedImage = new Image(new ushort[] { 0, 64, 128, 255 }, imageModel);
var command = new SetOutputImageCommand(_imageConverter)
{
OnImageUpdate = value => outputImage = value
};
// When
command.Execute(inputImage);
// Then
Assert.IsTrue(BitmapImageIsSameAsImage(outputImage, expectedImage));
}
