Functional
Run the program using cargo run.
Does it compile and run without any warnings?
Left click in the canvas to set one or more control points.
Does the program allow you to mark these control points?
Can You confirm that the program draws a small circle around the control points, in order to identify them?
Left click in the canvas to set one or more control points and press Enter.
Does the animation of the Chaikin's algorithm starts?
Left click in the canvas to set just one control point and press Enter.
Can you confirm that only the control point is shown and nothing changes?
Left click in the canvas to set just two control points and press Enter.
Can you confirm that only a straight line was drawn?
Left click in the canvas to set one or more control points and press Enter.
Does the animation complete 7 steps before starting again?
Left click in the canvas to set one or more control points and press Enter then press Escape.
Does the program exit without errors?
Press Enter without selecting any points.
Does the program returns an error?
Bonus
+Is it possible to clear the screen and add new control points without killing and relaunching the program?
+Is it possible to drag the control points in real time and get a new curve?
