lib/expectr.rb in expectr-0.8.1 vs lib/expectr.rb in expectr-0.8.2

@@ -212,9 +212,10 @@
 
 	#
 	# Send +str+ to application
 	#
 	def send(str)
+		raise ArgumentError unless @pid > 0
 		@stdin.syswrite str
 	end
 
 	# 
 	# === Synopsis