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2htdp/image: adjust tests

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Robby Findler 2011-02-10 15:46:33 -06:00 committed by Robby Findler
parent 731a754e2b
commit 4d9c150b7b
1 changed files with 7 additions and 4 deletions
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11
collects/2htdp/tests/test-image.rkt
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@ -2229,6 +2229,9 @@
#:attempts 1000))
;; random testing finds differences here but they
;; seem to be due to imprecision in inexact arithmetic.
#;
(let ()
(define w 200)
(define h 200)
@ -2240,12 +2243,12 @@
(define bdc2 (make-object bitmap-dc% bm2))
(define (render-and-compare img)
(send bdc1 clear)
(send bdc2 clear)
(send bdc1 erase)
(send bdc2 erase)
(parameterize ([render-normalized #f])
(render-image img bdc1 0 0))
(render-image img bdc1 10 10))
(parameterize ([render-normalized #t])
(render-image img bdc2 0 0))
(render-image img bdc2 10 10))
(send bdc1 get-argb-pixels 0 0 w h bytes1)
(send bdc2 get-argb-pixels 0 0 w h bytes2)
(equal? bytes1 bytes2))