/usr/share/scheme48-1.9/cml/cml-check.scm is in scheme48 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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; Authors: Mike Sperber
(define-test-suite rendezvous-channels-tests)
(define-test-case channel-1 rendezvous-channels-tests
(let ((channel (make-channel)))
(spawn
(lambda ()
(sleep 500)
(send channel 'message)))
(check (receive channel) => 'message)))
(define-test-case channel-2 rendezvous-channels-tests
(let ((channel (make-channel)))
(spawn
(lambda ()
(send channel 'message)))
(sleep 500)
(check (receive channel) => 'message)))
(define-test-case channel-3 rendezvous-channels-tests
(do ((i 0 (+ 1 i)))
((= i 100)) ; detect races more reliably
(let ((channel (make-channel)))
(spawn
(lambda ()
(let loop ((i 0))
(if (not (= i 1000))
(begin
(send channel i)
(loop (+ 1 i)))))))
(spawn
(lambda ()
;; (sleep 500)
(let loop ((i 1000))
(if (not (= i 2000))
(begin
(send channel i)
(loop (+ 1 i)))))))
(let loop ((count 0)
(values '()))
(if (= count 2000)
(check-that values
(is lset= (iota 2000)))
(loop (+ 1 count)
(cons (receive channel) values)))))))
(define-test-case select-1 rendezvous-channels-tests
(let ((channel-1 (make-channel))
(channel-2 (make-channel)))
(spawn
(lambda ()
(let loop ((i 0))
(if (not (= i 1000))
(begin
(send channel-1 i)
;;(sleep 1000)
(loop (+ 1 i)))))))
(spawn
(lambda ()
;; (sleep 500)
(let loop ((i 1000))
(if (not (= i 2000))
(begin
(send channel-2 i)
(loop (+ 1 i)))))))
(sleep 500)
(let loop ((count 0)
(values '()))
(if (= count 2000)
(check-that values (is lset= (iota 2000)))
(loop (+ 1 count)
(cons (select (receive-rv channel-1)
(receive-rv channel-2))
values))))))
(define-test-case wrap-1 rendezvous-channels-tests
(let ((channel-1 (make-channel))
(channel-2 (make-channel)))
(spawn
(lambda ()
(let loop ((i 0))
(if (not (= i 1000))
(begin
(send channel-1 i)
;;(sleep 1000)
(loop (+ 1 i)))))))
(spawn
(lambda ()
;; (sleep 500)
(let loop ((i 1000))
(if (not (= i 2000))
(begin
(send channel-2 i)
(loop (+ 1 i)))))))
(sleep 500)
(let loop ((count 0)
(values '()))
(if (= count 2000)
(check-that values (is lset= (iota 2000)))
(let* ((val
(select (wrap (receive-rv channel-1)
(lambda (n)
(cons 1 n)))
(wrap (receive-rv channel-2)
(lambda (n)
(cons 2 n)))))
(chan (car val))
(n (cdr val)))
(if (< n 1000)
(check chan => 1)
(check chan => 2))
(loop (+ 1 count)
(cons n values)))))))
(define (make-rv-notifier rv ack-message nack-message callback)
(with-nack
(lambda (nack)
(spawn
(lambda ()
(sync nack)
(callback nack-message)))
(wrap rv
(lambda (ignore)
(callback ack-message))))))
(define-test-case with-nack-1 rendezvous-channels-tests
(let ((channel-1 (make-channel))
(channel-2 (make-channel))
(message-1 #f)
(message-2 #f))
(spawn
(lambda ()
(sleep 500)
(send channel-1 'ignore)))
(let ((notifier-1
(make-rv-notifier (receive-rv channel-1)
"ch1" "not ch1"
(lambda (message)
(set! message-1 message))))
(notifier-2
(make-rv-notifier (receive-rv channel-2)
"ch2" "not ch2"
(lambda (message)
(set! message-2 message)))))
(select notifier-1 notifier-2)
(sleep 500)
(check message-1 => "ch1")
(check message-2 => "not ch2")
;; kill off remaining thread
(spawn
(lambda ()
(send channel-2 'ignore)))
(select notifier-1 notifier-2))))
(define-test-case with-nack-2 rendezvous-channels-tests
(let ((channel-1 (make-channel))
(channel-2 (make-channel))
(message-1 #f)
(message-2 #f))
(spawn
(lambda ()
(send channel-1 'ignore)))
(sleep 500)
(let ((notifier-1
(make-rv-notifier (receive-rv channel-1)
"ch1" "not ch1"
(lambda (message)
(set! message-1 message))))
(notifier-2
(make-rv-notifier (receive-rv channel-2)
"ch2" "not ch2"
(lambda (message)
(set! message-2 message)))))
(select notifier-1 notifier-2)
(sleep 500)
(check message-1 => "ch1")
(check message-2 => "not ch2")
;; kill off remaining thread
(spawn
(lambda ()
(send channel-2 'ignore)))
(select notifier-1 notifier-2))))
(define-test-suite rendezvous-jars-tests)
(define-test-case take rendezvous-jars-tests
(let ((jar (make-jar)))
(jar-put! jar 1)
(check (jar-take jar) => 1)
(jar-put! jar 2)
(check (jar-take jar) => 2)
(jar-put! jar 3)
(check (jar-take jar) => 3)
(jar-put! jar 4)
(check (jar-take jar) => 4)))
(define-test-case select rendezvous-jars-tests
(let ((jar-1 (make-jar))
(jar-2 (make-jar))
(result-channel (make-channel)))
(spawn
(lambda ()
(let ((contents (select (jar-take-rv jar-1)
(jar-take-rv jar-2))))
(send result-channel (cons 1 contents)))))
(spawn
(lambda ()
(let ((contents (select (jar-take-rv jar-1)
(jar-take-rv jar-2))))
(send result-channel (cons 2 contents)))))
(spawn
(lambda ()
(let ((contents (select (jar-take-rv jar-1)
(jar-take-rv jar-2))))
(send result-channel (cons 3 contents)))))
(sleep 500)
(jar-put! jar-1 17)
(jar-put! jar-2 23)
(let ((res-1 (receive result-channel))
(res-2 (receive result-channel))
(ensure
(lambda (res)
(check-that res
(member-of '((1 . 17)
(2 . 17)
(3 . 17)
(1 . 23)
(2 . 23)
(3 . 23)))))))
;; kill off remaining thread
(jar-put! jar-1 #f)
(receive result-channel)
(ensure res-1)
(ensure res-2))))
(define-test-case multi rendezvous-jars-tests
(let ((jar-1 (make-jar 1))
(jar-2 (make-jar 2)))
(spawn
(lambda ()
(let loop ((i 1))
(if (< i 1000)
(begin
(check (jar-take jar-1) => (cons 1 (- i 1)))
(jar-put! jar-2 (cons 2 i))
(loop (+ i 1)))))))
(jar-put! jar-2 (cons 2 0))
(let loop ((i 0))
(if (< i 1000)
(begin
(check (jar-take jar-2) => (cons 2 i))
(jar-put! jar-1 (cons 1 i))
(loop (+ i 1)))))))
(define-test-suite rendezvous-placeholders-tests)
(define-test-case placeholder-1 rendezvous-placeholders-tests
(let ((placeholder-1 (make-placeholder))
(placeholder-2 (make-placeholder))
(results (make-channel)))
(spawn
(lambda ()
(let ((contents (select (placeholder-value-rv placeholder-1)
(placeholder-value-rv placeholder-1))))
(send results contents))))
(spawn
(lambda ()
(let ((contents (select (placeholder-value-rv placeholder-1)
(placeholder-value-rv placeholder-2))))
(send results contents))))
(spawn
(lambda ()
(let ((contents (select (placeholder-value-rv placeholder-1)
(placeholder-value-rv placeholder-2))))
(send results contents))))
(sleep 500)
(placeholder-set! placeholder-1 17)
(placeholder-set! placeholder-2 23)
(let ((vals (list (receive results) (receive results) (receive results))))
(check (lset<= vals '(17 23))))))
(define-test-suite with-nack-tests)
(define-test-case dummy with-nack-tests
(let ((ch (make-channel)))
(spawn
(lambda ()
(send ch 23)))
(check
(sync
(with-nack (lambda (nack)
(receive-rv ch))))
=> 23)))
(define-test-case dummy-guard with-nack-tests
(let ((ch (make-channel)))
(spawn
(lambda ()
(send ch 23)))
(check
(sync
(guard (lambda ()
(with-nack (lambda (nack)
(receive-rv ch))))))
=> 23)))
(define-test-case no-nack-1 with-nack-tests
(let ((ch (make-channel))
(no #f))
(spawn
(lambda ()
(sleep 500)
(send ch 23)))
(sync
(wrap (with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(set! no #t)))
(receive-rv ch)))
(lambda (value)
(check value => 23))))
(sleep 500)
(check-that no (is-false))))
(define-test-case no-nack-2 with-nack-tests
(let ((ch (make-channel))
(no #f))
(spawn
(lambda ()
(sync
(wrap (with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(set! no 1)))
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(set! no 2)))
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(set! no 3)))
(receive-rv ch)))))))
(lambda (value)
(check value => 10))))))
(sleep 10)
(send ch 10)
(sleep 200)
(check no => #f)))
(define-test-case nack-1 with-nack-tests
(let ((ch (make-channel))
(results (make-channel)))
(spawn
(lambda ()
(select
(receive-rv ch)
(wrap (with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 1)))
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 2)))
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 3)))
(send-rv ch 'jo)))))))
(lambda (value)
(check #f))))))
(sleep 10)
(send ch 10)
(let ((vals (list (receive results) (receive results) (receive results))))
(check-that vals (is lset= '(1 2 3))))))
(define-test-case no-nack-3 with-nack-tests
(let ((ch (make-channel))
(results (make-channel)))
(spawn
(lambda ()
(select
(send-rv ch 'tralala)
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 1)))
(guard (lambda ()
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 2)))
(send-rv ch 'jo-man)))))))
(send-rv ch 'dudel-di-dudel))))
(sleep 10)
(check-that (receive ch) (member-of '(tralala dudel-di-dudel)))
(sleep 200)
(check-that (list (receive results) (receive results))
(is lset= '(1 2)))))
(define-test-case nack-2 with-nack-tests
(let* ((ch-1 (make-channel))
(ch-2 (make-channel))
(rv-1 (receive-rv ch-1))
(rv-2 (receive-rv ch-2))
(results (make-channel)))
(spawn
(lambda ()
(select
(wrap (with-nack (lambda (nack)
(choose
(with-nack (lambda (nack)
(spawn (lambda ()
(sync nack)
(send results 'nack-1)))
rv-1))
(with-nack (lambda (nack)
(spawn (lambda ()
(send results 'nack-2)))
rv-2))
rv-1)))
(lambda (value)
(send results 'rv-1)))
(wrap rv-2
(lambda (value)
(send results 'rv-2))))))
(sleep 10)
(send ch-1 'jo)
(sleep 200)
(check-that
(list (receive results) (receive results) (receive results))
(is lset= '(nack-1 nack-2 rv-1)))))
(define (make-channels channels)
(let loop ((res '()) (i channels))
(if (= i 0)
res
(loop (cons (cons i (make-channel)) res) (- i 1)))))
(define-test-case nack-3 with-nack-tests
(let* ((channel-count 10)
(channels (make-channels channel-count))
(rvs (map (lambda (pair)
(cons (car pair) (receive-rv (cdr pair))))
channels))
(results (make-channel)))
(spawn
(lambda ()
(let ((select-rvs (map (lambda (rv)
(wrap
(with-nack
(lambda (another-rv)
(spawn (lambda ()
(sync another-rv)))
(cdr rv)))
(lambda (val)
(send results val))))
rvs)))
(let loop ()
(apply select select-rvs)
(loop)))))
(sleep 50)
(let loop ((channels channels))
(if (not (null? channels))
(let ((channel-no (car (car channels)))
(channel (cdr (car channels))))
(send channel channel-no)
(sleep 100)
(check (receive results) => channel-no)
(loop (cdr channels)))))))
(define-test-suite cml-tests
(rendezvous-channels-tests
rendezvous-jars-tests
rendezvous-placeholders-tests
with-nack-tests
))
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