add true-after-n-times to tests file

diff --git a/tests.scm b/tests.scm
index 0c5862431d63072a517fe3b547e4f92870baa6b0..c7fe1cd32a76cad657a4c2d1b91bafb995f4fb15 100644 (file)
--- a/tests.scm
+++ b/tests.scm
@@ -211,6 +211,12 @@
       (if message (set! messages (append messages (list message))))
       messages)))
 
+(define (true-after-n-times n)
+  (let ((count 0))
+    (lambda _
+      (set! count (+ count 1))
+      (if (>= count n) #t #f))))
+
 ;; the dummy test
 
 (define speaker (speak-it))