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(echo "Testing process and IPC primitives...")
(define (qualify executable)
(string-append executable (getenv "EXEEXT")))
(assert (= 0 (call `(,(qualify "t-child") "return0"))))
(assert (= 1 (call `(,(qualify "t-child") "return1"))))
(assert (= 77 (call `(,(qualify "t-child") "return77"))))
(let ((r (call-with-io `(,(qualify "t-child") "return0") "")))
(assert (= 0 (:retcode r)))
(assert (string=? "" (:stdout r)))
(assert (string=? "" (:stderr r))))
(let ((r (call-with-io `(,(qualify "t-child") "return1") "")))
(assert (= 1 (:retcode r)))
(assert (string=? "" (:stdout r)))
(assert (string=? "" (:stderr r))))
(let ((r (call-with-io `(,(qualify "t-child") "return77") "")))
(assert (= 77 (:retcode r)))
(assert (string=? "" (:stdout r)))
(assert (string=? "" (:stderr r))))
(let ((r (call-with-io `(,(qualify "t-child") "hello_stdout") "")))
(assert (= 0 (:retcode r)))
(assert (string=? "hello" (:stdout r)))
(assert (string=? "" (:stderr r))))
(let ((r (call-with-io `(,(qualify "t-child") "hello_stderr") "")))
(assert (= 0 (:retcode r)))
(assert (string=? "" (:stdout r)))
(assert (string=? "hello" (:stderr r))))
(let ((r (call-with-io `(,(qualify "t-child") "cat") "hellohello")))
(assert (= 0 (:retcode r)))
(assert (string=? "hellohello" (:stdout r)))
(assert (string=? "" (:stderr r))))
(define (spawn what)
(spawn-process-fd what CLOSED_FD STDOUT_FILENO STDERR_FILENO))
(let ((pid0 (spawn `(,(qualify "t-child") "return0")))
(pid1 (spawn `(,(qualify "t-child") "return0"))))
(assert (equal? '(0 0)
(wait-processes '("child0" "child1") (list pid0 pid1) #t))))
(let ((pid0 (spawn `(,(qualify "t-child") "return1")))
(pid1 (spawn `(,(qualify "t-child") "return0"))))
(assert (equal? '(1 0)
(wait-processes '("child0" "child1") (list pid0 pid1) #t))))
(let ((pid0 (spawn `(,(qualify "t-child") "return0")))
(pid1 (spawn `(,(qualify "t-child") "return77")))
(pid2 (spawn `(,(qualify "t-child") "return1"))))
(assert (equal? '(0 77 1)
(wait-processes '("child0" "child1" "child2")
(list pid0 pid1 pid2) #t))))
(let* ((p (pipe))
(pid0 (spawn-process-fd
`(,(qualify "t-child") "hello_stdout")
CLOSED_FD (:write-end p) STDERR_FILENO))
(_ (close (:write-end p)))
(pid1 (spawn-process-fd
`(,(qualify "t-child") "cat")
(:read-end p) STDOUT_FILENO STDERR_FILENO)))
(close (:read-end p))
(assert
(equal? '(0 0)
(wait-processes '("child0" "child1") (list pid0 pid1) #t))))
(echo " world.")
(echo "All good.")
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