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-rw-r--r--tests/monads.scm13
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/monads.scm b/tests/monads.scm
index 5529a6188a..d3ef065f24 100644
--- a/tests/monads.scm
+++ b/tests/monads.scm
@@ -103,6 +103,19 @@
%monads
%monad-run))
+(test-assert ">>= with more than two arguments"
+ (every (lambda (monad run)
+ (let ((1+ (lift1 1+ monad))
+ (2* (lift1 (cut * 2 <>) monad)))
+ (with-monad monad
+ (let ((number (random 777)))
+ (= (run (>>= (return number)
+ 1+ 1+ 1+
+ 2* 2* 2*))
+ (* 8 (+ number 3)))))))
+ %monads
+ %monad-run))
+
(test-assert "mbegin"
(every (lambda (monad run)
(with-monad monad