def unittest(data_path, temp_path): import image # Create test image img = image.Image(64, 64, image.RGB565) # Fill with pattern for y in range(64): for x in range(64): color = ((x * 8) << 8) | ((y * 4) << 3) | ((x + y) >> 3) img.set_pixel(x, y, color) # Compress to JPEG with quality 50 img = img.to_jpeg(quality=50) # Verify it's compressed if img.format() != image.JPEG: return False # JPEG size should be smaller than uncompressed jpeg_size = img.size() uncompressed_size = 64 * 64 * 2 # RGB565 = 2 bytes per pixel if jpeg_size >= uncompressed_size: return False # Decompress img = image.Image(data_path + "/compressed.jpeg", copy_to_fb=True) img.to_rgb565() # Verify dimensions if img.width() != 320 or img.height() != 270: return False if img.format() != image.RGB565: return False return True