public void TestPixelRegistering()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(true, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F);
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsTrue(undo != null && undo.Value.OldColor == 0xFF, "The returned PixelUndo does not contains the undo color that was expected");
}
public void TestDuplicatedPixelUncheckedRegisteringReplaceOriginal()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(false, 12);
// Add the pixels
tracker.RegisterUncheckedPixel(5, 5, 0xFF, 0x1F);
tracker.RegisterUncheckedPixel(5, 5, 0xEF, 0x2F);
tracker.RegisterUncheckedPixel(5, 5, 0xCF, 0x3F);
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsTrue(undo != null && undo.Value.OldColor == 0xCF,
"The returned PixelUndo does not contains the undo color that was expected. The pixel color must match the color of the last pixel registered RegisterPixel");
}
public void TestClearing()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(false, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F);
tracker.RegisterPixel(6, 5, 0xEF, 0x2F);
tracker.RegisterPixel(7, 5, 0xCF, 0x3F);
tracker.Clear();
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsNull(undo, "After a call to .Clear(), all pixels that were previously stored must be cleared off the PixelHistoryTracker");
}