public void TestSourceOverTransparentOperation()
{
Bitmap target = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
PencilPaintOperation operation = new PencilPaintOperation(target)
{
Color = Color.FromArgb(127, 0, 0, 0),
CompositingMode = CompositingMode.SourceOver
};
operation.StartOpertaion();
operation.MoveTo(5, 5);
operation.DrawTo(10, 10);
operation.DrawTo(15, 17);
operation.DrawTo(20, 25);
operation.DrawTo(25, 37);
operation.DrawTo(5, 5);
operation.FinishOperation();
// Hash of the .png image that represents the target result of the paint operation. Generated through the 'RegisterResultBitmap' method
byte[] goodHash = { 0x7D, 0xBB, 0x8A, 0xAE, 0x0, 0x75, 0x55, 0x54, 0x67, 0xE1, 0x35, 0x90, 0xE2, 0x77, 0xD3, 0xF1, 0xE4, 0xAD, 0xE2, 0xD6, 0xB, 0xDA, 0xCA, 0xB9, 0xDD, 0x64, 0x99, 0x70, 0xFF, 0x69, 0x6D, 0x52 };
byte[] currentHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "PencilOperation_SourceOverTransparentPaint");
Assert.IsTrue(goodHash.SequenceEqual(currentHash), "The hash for the paint operation must match the good hash stored");
}
public void TestSourceOverAlphaAccumulationOffTransparentOperation()
{
Bitmap target = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
PencilPaintOperation operation = new PencilPaintOperation(target)
{
Color = Color.FromArgb(127, 0, 0, 0),
CompositingMode = CompositingMode.SourceOver
};
operation.StartOpertaion(false);
operation.MoveTo(5, 5);
operation.DrawTo(10, 10);
operation.DrawTo(15, 17);
operation.DrawTo(20, 25);
operation.DrawTo(25, 37);
operation.DrawTo(5, 5);
operation.FinishOperation();
// Hash of the .png image that represents the target result of the paint operation. Generated through the 'RegisterResultBitmap' method
byte[] goodHash = { 0x7E, 0xCD, 0xAB, 0x2D, 0xB, 0x48, 0x83, 0x2B, 0x1E, 0xCA, 0xA, 0x98, 0x68, 0x58, 0x86, 0x66, 0x67, 0x15, 0x62, 0xDA, 0xC4, 0xB5, 0xE2, 0x8, 0x12, 0xBD, 0x3C, 0x7A, 0xF2, 0x92, 0x80, 0x9 };
byte[] currentHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "PencilOperation_SourceOverTransparentPaint_AccumulateAlphaOff");
Assert.IsTrue(goodHash.SequenceEqual(currentHash), "The hash for the paint operation must match the good hash stored");
}
public void TestImagePersistence()
{
// Setup the test
Bitmap bitmap1 = FrameGenerator.GenerateRandomBitmap(48, 37, 0);
Bitmap bitmap2 = FrameGenerator.GenerateRandomBitmap(12, 45, 0);
Stream stream = new MemoryStream();
// Test the methods
PersistenceHelper.SaveImageToStream(bitmap1, stream);
PersistenceHelper.SaveImageToStream(bitmap2, stream);
// Reset stream
stream.Position = 0;
// Load the bitmaps back up again one at a time
Bitmap loadedBitmap1 = PersistenceHelper.LoadImageFromStream(stream);
Bitmap loadedBitmap2 = PersistenceHelper.LoadImageFromStream(stream);
// Compare images
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(bitmap1, loadedBitmap1), "An image loaded from a stream must match completely the image that was saved");
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(bitmap2, loadedBitmap2), "An image loaded from a stream must match completely the image that was saved");
// Try to edit the loaded bitmaps to verify editability
loadedBitmap1.SetPixel(0, 0, Color.Black);
loadedBitmap2.SetPixel(0, 0, Color.Black);
}
public void TestSourceCopyTransparentOperation()
{
Bitmap target = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
PencilPaintOperation operation = new PencilPaintOperation(target, true)
{
Color = Color.FromArgb(127, 0, 0, 0),
CompositingMode = CompositingMode.SourceCopy
};
operation.StartOpertaion();
operation.MoveTo(5, 5);
operation.DrawTo(10, 10);
operation.DrawTo(15, 17);
operation.DrawTo(20, 25);
operation.DrawTo(25, 37);
operation.FinishOperation();
// Hash of the .png image that represents the target result of the paint operation. Generated through the 'RegisterResultBitmap' method
byte[] goodHash = { 0x7C, 0xB0, 0xE9, 0x83, 0x12, 0xC3, 0x13, 0x74, 0x20, 0xCA, 0x40, 0x8E, 0x27, 0x11, 0x8B, 0xF5, 0xE9, 0x5F, 0x33, 0x41, 0xCE, 0x7D, 0x8D, 0x74, 0x76, 0x5C, 0xA6, 0xD1, 0xAB, 0x90, 0x1C, 0x34 };
byte[] currentHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "PencilOperation_SourceCopyTransparentPaint");
Assert.IsTrue(goodHash.SequenceEqual(currentHash), "The hash for the paint operation does not match the good hash stored. Verify the output image for an analysis of what went wrong");
}
public void TestLayerIndexing()
{
Frame frame = FrameGenerator.GenerateRandomFrame(64, 64, 5, 1);
frame.AddLayer(FrameGenerator.GenerateRandomBitmap(64, 64, 2));
IFrameLayer layer = frame.CreateLayer();
Assert.AreEqual(0, frame.GetLayerAt(0).Index, "Layers fetched with GetLayerAt() must have an index that match the parameter passed");
Assert.AreEqual(1, frame.GetLayerAt(1).Index, "Layers fetched with GetLayerAt() must have an index that match the parameter passed");
Assert.AreEqual(2, frame.GetLayerAt(2).Index, "Layers fetched with GetLayerAt() must have an index that match the parameter passed");
Assert.AreEqual(2, layer.Index, "Layers returned by calls to AddLayer() and CreateLayer() must have an index that match the 'index' parameter passed");
}
public void TestImagesAreIdentical()
{
// Generate the bitmaps
Bitmap bitmap1 = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
Bitmap bitmap2 = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
// Test the equality
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(bitmap1, bitmap2), "ImagesAreIdentical should return true for images that are equal down to each pixel");
// Generate a different random bitmap
bitmap2 = FrameGenerator.GenerateRandomBitmap(64, 64, 11);
Assert.IsFalse(ImageUtilities.ImagesAreIdentical(bitmap1, bitmap2), "ImagesAreIdentical should return false for images that are not equal down to each pixel");
}
public void TestLayerBitmapUpdating()
{
// Create a frame
Frame frame = new Frame(null, 64, 64);
Bitmap layer1 = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
frame.CreateLayer();
// Swap the layers
frame.SetLayerBitmap(1, layer1);
// Test layer swapping by comparing the bitmaps
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(layer1, frame.GetLayerAt(1).LayerBitmap), "The layer bitmap has not been updated correctly");
}
public void TestFrameLayerInsertion()
{
Frame frame = new Frame(null, 64, 64);
Bitmap layer1 = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
Bitmap layer2 = FrameGenerator.GenerateRandomBitmap(64, 64, 9);
frame.AddLayer(layer1);
frame.AddLayer(layer2, 1);
Assert.AreEqual(frame, frame.GetLayerAt(0).Frame, "The Frame reference of the layer must match the frame that it was added to");
Assert.AreEqual(3, frame.LayerCount, "The layer count must go up for each new layer added");
Assert.AreEqual(1, frame.GetLayerAt(1).Index, "A layer's index must reflect its current position on the owning frame's layer list");
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(layer2, frame.GetLayerAt(1).LayerBitmap), "The layer bitmaps insertion must obey the index provided on AddLayer");
}
public void TestFrameEquals()
{
Frame fr1 = new Frame(null, 64, 64);
Frame fr2 = fr1.Clone();
Assert.AreEqual(fr1, fr2, "The frames after a Clone() operation must be equal");
// Fill both frames with randomly generated images
Bitmap bit = FrameGenerator.GenerateRandomBitmap(64, 64, 0);
fr1.SetFrameBitmap(bit);
fr2.SetFrameBitmap(bit);
Assert.AreEqual(fr1, fr2, "Frames with equal images must return true to .Equals()");
fr2.SetFrameBitmap(FrameGenerator.GenerateRandomBitmap(64, 64, 1));
Assert.AreNotEqual(fr1, fr2, "Frames with different images must return false to .Equals()");
}
public void TestFrameLayerCreation()
{
// TODO: Find out why this test fails under Release mode but succeeds under Debug mode
Frame frame = FrameGenerator.GenerateRandomFrame(64, 64, 1, 1);
frame.AddLayer(FrameGenerator.GenerateRandomBitmap(64, 64, 2));
frame.AddLayer(FrameGenerator.GenerateRandomBitmap(64, 64, 3));
Bitmap target = frame.GetComposedBitmap();
// Hash of the .png image that represents the target result of the paint operation. Generated through the 'RegisterResultBitmap' method
byte[] goodHash = { 0xBF, 0x8F, 0x9B, 0x56, 0xBE, 0x8D, 0xF5, 0xD2, 0x99, 0x1C, 0x9B, 0xEC, 0x56, 0xB8, 0x6D, 0xA9, 0x41, 0xBB, 0x31, 0x66, 0xD, 0xB2, 0xDC, 0x66, 0xF3, 0x5C, 0x9A, 0xDE, 0x59, 0xC2, 0xC2, 0x52 };
byte[] currentHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "FrameLayering");
Assert.IsTrue(goodHash.SequenceEqual(currentHash), "The hash for the composed frame does not match the good hash stored. Verify the output image for an analysis of what went wrong");
}
public void TestLayerRemoval()
{
// Create a frame
Frame frame = new Frame(null, 64, 64);
Bitmap bitmap = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
frame.CreateLayer();
// Swap the layers
frame.SetLayerBitmap(1, bitmap);
IFrameLayer layer = frame.GetLayerAt(0);
frame.RemoveLayerAt(0);
// Test layer swapping by comparing the bitmaps
Assert.AreEqual(null, layer.Frame, "After removing a layer from a frame, its Frame reference must be null");
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(bitmap, frame.GetLayerAt(0).LayerBitmap), "The layer does not appear to have been correctly removed");
}
public void TestRedoOperation_SizedSourceOverAlpha()
{
// Create the objects
Bitmap target = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
// Create the test subjects
PlottingPaintUndoGenerator generator = new PlottingPaintUndoGenerator(target, "Pencil");
PencilPaintOperation operation = new PencilPaintOperation(target)
{
Color = Color.FromArgb(127, 0, 0, 0),
CompositingMode = CompositingMode.SourceOver,
Size = 5,
Notifier = generator
};
operation.StartOpertaion();
operation.MoveTo(5, 5);
operation.DrawTo(10, 10);
operation.DrawTo(15, 17);
operation.DrawTo(20, 25);
operation.DrawTo(25, 37);
operation.DrawTo(5, 5);
operation.FinishOperation();
byte[] originalHash = GetHashForBitmap(target);
// Undo and redo the task back
generator.UndoTask.Undo();
generator.UndoTask.Redo();
byte[] afterRedoHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "PencilOperation_AfterRedo_SizedSourceOverAlpha");
Assert.IsTrue(originalHash.SequenceEqual(afterRedoHash), "After redoing a paint operation's task, its pixels must return to their original state after the operation was applied");
}
public void TestUndoOperation_SourceOverAlphaFailing()
{
// Create the objects
Bitmap target = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
byte[] originalHash = GetHashForBitmap(target);
// Create the test subjects
PlottingPaintUndoGenerator generator = new PlottingPaintUndoGenerator(target, "Pencil", keepReplacedUndos: false);
PencilPaintOperation operation = new PencilPaintOperation(target)
{
Color = Color.FromArgb(127, 0, 0, 0),
CompositingMode = CompositingMode.SourceOver,
Notifier = generator
};
operation.StartOpertaion();
operation.MoveTo(5, 5);
operation.DrawTo(10, 10);
operation.DrawTo(15, 17);
operation.DrawTo(20, 25);
operation.DrawTo(25, 37);
operation.DrawTo(5, 5);
operation.FinishOperation();
// Undo the task
generator.UndoTask.Undo();
byte[] afterUndoHash = GetHashForBitmap(target);
RegisterResultBitmap(target, "PencilOperation_AfterUndo_SourceOverAlpha_Failed");
Assert.IsFalse(originalHash.SequenceEqual(afterUndoHash),
"Plotting the same pixel repeatedly with an undo generator that has keepReplacedOriginals should fail, since the redrawn pixels have their undo color replaced");
}
public void TestLayerSwapping()
{
// Create a frame
Bitmap layer0 = FrameGenerator.GenerateRandomBitmap(64, 64, 11);
Frame frame = new Frame(null, 64, 64);
frame.SetFrameBitmap(layer0);
Bitmap layer1 = FrameGenerator.GenerateRandomBitmap(64, 64, 10);
Bitmap layer2 = FrameGenerator.GenerateRandomBitmap(64, 64, 9);
frame.AddLayer(layer1);
frame.AddLayer(layer2);
// Swap the layers
frame.SwapLayers(0, 2);
// Test layer swapping by comparing the bitmaps
Assert.AreEqual(0, frame.GetLayerAt(0).Index, "A layer's index must reflect its current position on the owning frame's layer list");
Assert.AreEqual(2, frame.GetLayerAt(2).Index, "A layer's index must reflect its current position on the owning frame's layer list");
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(layer2, frame.GetLayerAt(0).LayerBitmap), "The layers have not been swapped correctly");
Assert.IsTrue(ImageUtilities.ImagesAreIdentical(layer0, frame.GetLayerAt(2).LayerBitmap), "The layers have not been swapped correctly");
}