Test output for gnuplot-pipe [fail]

Testing time: 0s

'/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/csi' -script run.scm < /dev/null 2>&1
sh: gnuplot: not found
(file-exists? fname) ................................................. 
Error: (delete-file) cannot delete file - No such file or directory: "test.png"

	Call history:

	<syntax>	  (##core#begin (delete-file109 fname103))
	<syntax>	  (delete-file109 fname103)
	<eval>	  (with-output-to-pipe111 "gnuplot --persist" (lambda112 () (send113 "set style data lines") (gp:send1...
	<eval>	  (send113 "set style data lines")
	<eval>	  (gp:send105 "set term x11 nopersist")
	<eval>	  (gp:send "set xlabel 'x'")
	<eval>	  (gp:send "plot sin(x)")
	<eval>	  (gp:save106 fname103)
	<eval>	  (flush-output114)
	<eval>	  (newline115)
	<eval>	  (send113 "quit")
	<eval>	  (test-run121 (lambda122 () #f) (lambda122 () (file-exists?108 fname103)) (cons123 (cons123 (quote124...
	<eval>	  (cons123 (cons123 (quote124 name125) #f) (quote124 ((source126 file-exists?108 fname103) (source120 ...
	<eval>	  (cons123 (quote124 name125) #f)
	<eval>	  (file-exists?108 fname103)
	<eval>	  (delete-file109 fname103)	<--
[ FAIL]
    assertion failed