Megatest

		      (debug:print-info 1 *default-log-port* "Caching testconfig for " test-name " in " tpath)
		      (configf:write-alist tcfg tpath)))
		tcfg))))))
  
;; sort tests by priority and waiton
;; Move test specific stuff to a test unit FIXME one of these days
(define (tests:sort-by-priority-and-waiton test-records)
  (if (eq? (hash-table-size test-records) 0)
      '()
      (let* ((mungepriority (lambda (priority)
			      (if priority
				  (let ((tmp (any->number priority)))
				    (if tmp tmp (begin (debug:print-error 0 *default-log-port* "bad priority value " priority ", using 0") 0)))
				  0)))
	     (all-tests      (hash-table-keys test-records))
	     (all-waited-on  (let loop ((hed (car all-tests))
					(tal (cdr all-tests))
					(res '()))
			       (let* ((trec    (hash-table-ref test-records hed))
				      (waitons (or (tests:testqueue-get-waitons trec) '())))
				 (if (null? tal)
				     (append res waitons)
				     (loop (car tal)(cdr tal)(append res waitons))))))
	     (sort-fn1 
	      (lambda (a b)
		(let* ((a-record   (hash-table-ref test-records a))
		       (b-record   (hash-table-ref test-records b))
		       (a-waitons  (or (tests:testqueue-get-waitons a-record) '()))
		       (b-waitons  (or (tests:testqueue-get-waitons b-record) '()))
		       (a-config   (tests:testqueue-get-testconfig  a-record))
		       (b-config   (tests:testqueue-get-testconfig  b-record))
		       (a-raw-pri  (config-lookup a-config "requirements" "priority"))
		       (b-raw-pri  (config-lookup b-config "requirements" "priority"))
		       (a-priority (mungepriority a-raw-pri))
		       (b-priority (mungepriority b-raw-pri)))
		  (tests:testqueue-set-priority! a-record a-priority)
		  (tests:testqueue-set-priority! b-record b-priority)
		  ;; (debug:print 0 *default-log-port* "a=" a ", b=" b ", a-waitons=" a-waitons ", b-waitons=" b-waitons)
		  (cond
		   ;; is 
		   ((member a b-waitons)          ;; is b waiting on a?
		    ;; (debug:print 0 *default-log-port* "case1")
		    #t)
		   ((member b a-waitons)          ;; is a waiting on b?
		    ;; (debug:print 0 *default-log-port* "case2")
		    #f)
		   ((and (not (null? a-waitons))  ;; both have waitons - do not disturb
			 (not (null? b-waitons)))
		    ;; (debug:print 0 *default-log-port* "case2.1")
		    #t)
		   ((and (null? a-waitons)        ;; no waitons for a but b has waitons
			 (not (null? b-waitons)))
		    ;; (debug:print 0 *default-log-port* "case3")
		    #f)
		   ((and (not (null? a-waitons))  ;; a has waitons but b does not
			 (null? b-waitons)) 
		    ;; (debug:print 0 *default-log-port* "case4")
		    #t)
		   ((not (eq? a-priority b-priority)) ;; use
		    (> a-priority b-priority))
		   (else
		    ;; (debug:print 0 *default-log-port* "case5")
		    (string>? a b))))))
	     
	     (sort-fn2
	      (lambda (a b)
		(> (mungepriority (tests:testqueue-get-priority (hash-table-ref test-records a)))
		   (mungepriority (tests:testqueue-get-priority (hash-table-ref test-records b)))))))
	;; (let ((dot-res (tests:run-dot (tests:tests->dot test-records) "plain")))
	;;   (debug:print "dot-res=" dot-res))
	;; (let ((data (map cdr (filter
	;;     		  (lambda (x)(equal? "node" (car x)))
	;;     		  (map string-split (tests:easy-dot test-records "plain"))))))
	;;   (map car (sort data (lambda (a b)
	;;     		    (> (string->number (caddr a))(string->number (caddr b)))))))
	;; ))
	(sort all-tests sort-fn1)))) ;; avoid dealing with deleted tests, look at the hash table

(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")