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+module ZFUpdateAtTest
+
+/* Test module ZFUpdateAt
+ Voor werken met Gast:
+ (*) gebruik Environment 'Gast'
+ (*) zet Project Options op 'Basic Values Only'
+*/
+import gast
+import ZFUpdateAt
+
+Start
+ = testn 1000
+ (\m n x ->
+ let l = [1 .. n bitand 0xFF] in
+ identiek_aan_updateAt m l x /\
+ True
+ )
+
+identiek_aan_updateAt :: Int [Int] Int -> Property
+identiek_aan_updateAt m l x = name "identiek aan updateAt"
+ (updateAt m x l == updateAt2 m x l)
+ /\
+ (ForEach [1 .. length l] (\i -> updateAt i x l == updateAt2 i x l))