public void PercentageDifferences_DifferentSize_ThrowsException()
{
using (var newBm = new Bitmap(500, 500))
{
using (var newBm2 = new Bitmap(200, 200))
{
Assert.Throws <ImageComparisonSizeDifferenceException>(
() => ImagingUtilities.PercentageDifference(newBm, newBm2, string.Empty));
}
}
}
public void PercentageDifferences_DifferentImage_NoSave()
{
using (var newBm = new Bitmap(500, 500))
{
// define the crop size
var targetSize = new Rectangle(125, 125, 125, 125);
// fill in the crop to a solid colour
using (var newGrapics = Graphics.FromImage(newBm))
{
newGrapics.CompositingQuality = CompositingQuality.HighSpeed;
newGrapics.SmoothingMode = SmoothingMode.HighSpeed;
newGrapics.InterpolationMode = InterpolationMode.HighQualityBicubic;
SolidBrush brush = new SolidBrush(Color.Red);
SolidBrush backgroundBrush = new SolidBrush(Color.Green);
newGrapics.FillRectangle(backgroundBrush, new Rectangle(0, 0, 500, 500));
newGrapics.FillRectangle(brush, targetSize);
}
using (var newBm2 = new Bitmap(500, 500))
{
// define the crop size
var targetSize2 = new Rectangle(250, 250, 250, 250);
// fill in the crop to a solid colour
using (var newGrapics = Graphics.FromImage(newBm2))
{
newGrapics.CompositingQuality = CompositingQuality.HighSpeed;
newGrapics.SmoothingMode = SmoothingMode.HighSpeed;
newGrapics.InterpolationMode = InterpolationMode.HighQualityBicubic;
SolidBrush brush = new SolidBrush(Color.Red);
SolidBrush backgroundBrush = new SolidBrush(Color.Green);
newGrapics.FillRectangle(backgroundBrush, new Rectangle(0, 0, 500, 500));
newGrapics.FillRectangle(brush, targetSize2);
}
var difference = ImagingUtilities.PercentageDifference(newBm, newBm2, string.Empty);
Assert.AreEqual(31.25, difference);
}
}
}