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(define (tests:easy-dot test-records outtype)
(let-values (((fd temp-path) (file-mkstemp (conc "/tmp/" (current-user-name) ".XXXXXX"))))
(let ((all-testnames (hash-table-keys test-records))
(temp-port (open-output-file* fd)))
;; (format temp-port "This file is ~A.~%" temp-path)
(format temp-port "digraph tests {\n")
;; (format temp-port " splines=none\n")
(for-each
(lambda (testname)
(let* ((testrec (hash-table-ref test-records testname))
(waitons (or (tests:testqueue-get-waitons testrec) '())))
(for-each
(lambda (waiton)
(format temp-port (conc " " waiton " -> " testname "\n")))
(format temp-port (conc " " waiton " -> " testname " [splines=ortho]\n")))
waitons)))
all-testnames)
(format temp-port "}\n")
(close-output-port temp-port)
(with-input-from-pipe
(conc "dot -T" outtype " < " temp-path)
(conc "env -i PATH=$PATH dot -T" outtype " < " temp-path)
(lambda ()
(let ((res (read-lines)))
;; (delete-file temp-path)
res))))))
(define (tests:write-dot-file test-records fname)
(if (file-write-access? (pathname-directory fname))
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