Added a test script to control the test, using python.

tests/pingpair_test/runtest.py

@@ -0,0 +1,20 @@
+#!/opt/local/bin/python
+
+import sys,serial
+
+def read_until(token):
+	while 1: 
+		line = ser.readline(None,"\r")
+		sys.stdout.write(line)
+
+		if (line.startswith("+OK")):
+			break
+	return line
+
+
+ser = serial.Serial(sys.argv[1], 57600, timeout=5)
+line = read_until("+OK")
+if (line.find("PASS") != -1):
+	sys.exit(0)
+else:
+	sys.exit(1)