(digit-char 4 1)
(digit-char 4 37)))
(assert (raises-error? (apply (car form) (mapcar 'eval (cdr form))) type-error)))
+
+(dotimes (i 256)
+ (let* ((char (code-char i))
+ (graphicp (graphic-char-p char))
+ (name (char-name char)))
+ (unless graphicp
+ (assert name))))