// source all the tests - interesting but fraught with peril
// because tests can collide and stomp on each others variables.
// Regular testing should prefer the testall.sh script herein for
// this reason. It will run each test in its own zygo process.
(def tests (nsplit (system `ls -1 tests/*.zy`)))
(for [(def irunner 0) (< irunner (len tests)) (def irunner (+ irunner 1))]
     (def cur (aget tests irunner))
     (printf "starting %d '%s'\n" irunner cur)
     (new-scope
      (source cur))  
     (printf "done with %d '%s'\n" irunner cur))