(define $ass [|[~1 2 3~]
               [~4 5 6~]
               [~7 8 9~]
               [~10 11 12~]|])

(test (array-dimension ass))

(test (array-size 1 ass))

(test (array-size 2 ass))

(test (array-range ass))

(test (array-ref [2 2] ass))

(test (array-ref [2 3] ass))

(test (array-range? [2 3] ass))

(test (array-range? [2 4] ass))

(test (generate-array (lambda [$i1 $i2] (* (array-ref [i1 i2] ass) 2)) (array-range ass)))

(define $bss (generate-array (lambda [$i1 $i2] (* (array-ref [i1 i2] ass) 2)) (array-range ass)))

(test (array-ref [2 3] bss))

(test (match ass (Array Integer)
        {[(& <cons ,[2 2] $n> <cons ,[2 3] ,(+ n 1)>) <ok>]
         [_ <ko>]}))