Megatest

    (if (not (null? sorted-test-names))
	(let loop ((hed         (car sorted-test-names))
		   (tal         (cdr sorted-test-names)))
	  (thread-sleep! 0.1) ;; give other applications some time with the db
	  (let* ((test-record (hash-table-ref test-records hed))
		 (tconfig     (tests:testqueue-get-testconfig test-record))
		 (testmode    (let ((m (config-lookup tconfig "requirements" "mode")))
				(if m m 'normal)))
				(if m (string->symbol m) 'normal)))
		 (waitons     (tests:testqueue-get-waitons    test-record))
		 (priority    (tests:testqueue-get-priority   test-record))
		 (itemdat     (tests:testqueue-get-itemdat    test-record)) ;; itemdat can be a string, list or #f
		 (items       (tests:testqueue-get-items      test-record))
		 (item-path   (item-list->path itemdat))
		 (newtal      (append tal (list hed)))
		 (calc-fails  (lambda (prereqs-not-met)

		(if can-run-more
		    (let* ((prereqs-not-met (db:get-prereqs-not-met db run-id waitons item-path mode: testmode))
			   (fails           (calc-fails prereqs-not-met))
			   (non-completed   (calc-not-completed prereqs-not-met)))
		      (debug:print 8 "INFO: can-run-more: " can-run-more
				   "\n prereqs-not-met: " (pretty-string prereqs-not-met)
				   "\n non-completed:   " (pretty-string non-completed) 
				   "\n fails:           " (pretty-string fails))
				   "\n fails:           " (pretty-string fails)
				   "\n testmode:        " testmode
				   "\n (eq? testmode 'toplevel) " (eq? testmode 'toplevel)
				   "\n (null? non-completed)    " (null? non-completed))
		      (cond 
		       ((or (null? prereqs-not-met) ;; all prereqs met, fire off the test
			    ;; or, if it is a 'toplevel test and all prereqs not met are COMPLETED then launch
			    (and (eq? testmode 'toplevel)
				 (null? non-completed)))
			(let ((test-name (tests:testqueue-get-testname test-record)))
			  (setenv "MT_TEST_NAME" test-name) ;; 

		       ((and (not (null? fails))(eq? testmode 'normal))
			(debug:print 1 "INFO: test "  hed " (mode=" testmode ") has failed prerequisite(s); "
				     (string-intersperse (map (lambda (t)(conc (db:test-get-testname t) ":" (db:test-get-state t)"/"(db:test-get-status t))) fails) ", ")
				     ", removing it from to-do list")
			(if (not (null? tal))
			    (loop (car tal)(cdr tal))))
		       (else
			(debug:print 8 "ERROR: No handler for this condition, hed: " hed " fails: " (string-intersperse (map db:test-get-testname fails) ",") " testmode: " testmode " prereqs-not-met: " (pretty-string prereqs-not-met))
			(debug:print 8 "ERROR: No handler for this condition.")
			;; 	     "\n  hed:            " hed 
			;; 	     "\n fails:           " (string-intersperse (map db:test-get-testname fails) ",")
			;; 	     "\n testmode:        " testmode
			;; 	     "\n prereqs-not-met: " (pretty-string prereqs-not-met)
			;; 	     "\n items:           " items)
			(loop (car newtal)(cdr newtal)))))
		    ;; if can't run more just loop with next possible test
		    (loop (car newtal)(cdr newtal)))))
	     
	     ;; this case should not happen, added to help catch any bugs
	     ((and (list? items) itemdat)
	      (debug:print 0 "ERROR: Should not have a list of items in a test and the itemspath set - please report this")