Error codes for unexpected inputs

Author: Ashtreighlia

adafruit_display_shapes/rect.py

@@ -62,6 +62,9 @@ def __init__(
         self._bitmap = displayio.Bitmap(width, height, 2)
         self._palette = displayio.Palette(2)
 
+        if width <= 0 or height <= 0:
+            raise ValueError("Width and height must be greater than 0")
+
         if outline is not None:
             self._palette[1] = outline
             for w in range(width):

adafruit_display_shapes/roundrect.py

@@ -68,6 +68,9 @@ def __init__(
             y_offset=height - 2 * r - 1,
         )
 
+        if width <= 0 or height <= 0:
+            raise ValueError("Width and height must be greater than 0")
+
         if fill is not None:
             self._palette[2] = fill
             self._palette.make_opaque(2)