Diff: host_tests/udpecho_client_auto.py

Revision:

0:66f3b5499f7f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/host_tests/udpecho_client_auto.py	Thu May 19 19:44:41 2016 +0100
@@ -0,0 +1,77 @@
+"""
+mbed SDK
+Copyright (c) 2011-2013 ARM Limited
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+import sys
+import socket
+from sys import stdout
+from SocketServer import BaseRequestHandler, UDPServer
+
+class UDPEchoClient_Handler(BaseRequestHandler):
+    def handle(self):
+        """ One handle per connection
+        """
+        data, socket = self.request
+        socket.sendto(data, self.client_address)
+        if '{{end}}' in data:
+            print
+            print data
+        else:
+            sys.stdout.write('.')
+        stdout.flush()
+
+class UDPEchoClientTest():
+
+    def send_server_ip_port(self, selftest, ip_address, port_no):
+        c = selftest.mbed.serial_readline() # 'UDPCllient waiting for server IP and port...'
+        if c is None:
+            selftest.print_result(selftest.RESULT_IO_SERIAL)
+            return
+        selftest.notify(c.strip())
+
+        selftest.notify("HOST: Sending server IP Address to target...")
+        connection_str = ip_address + ":" + str(port_no) + "\n"
+        selftest.mbed.serial_write(connection_str)
+
+        c = selftest.mbed.serial_readline() # 'UDPCllient waiting for server IP and port...'
+        if c is None:
+            self.print_result(selftest.RESULT_IO_SERIAL)
+            return
+        selftest.notify(c.strip())
+        return selftest.RESULT_PASSIVE
+
+    def test(self, selftest):
+        # We need to discover SERVEP_IP and set up SERVER_PORT
+        # Note: Port 7 is Echo Protocol:
+        #
+        # Port number rationale:
+        #
+        # The Echo Protocol is a service in the Internet Protocol Suite defined
+        # in RFC 862. It was originally proposed for testing and measurement
+        # of round-trip times[citation needed] in IP networks.
+        #
+        # A host may connect to a server that supports the Echo Protocol using
+        # the Transmission Control Protocol (TCP) or the User Datagram Protocol
+        # (UDP) on the well-known port number 7. The server sends back an
+        # identical copy of the data it received.
+        SERVER_IP = str(socket.gethostbyname(socket.getfqdn()))
+        SERVER_PORT = 7
+
+        # Returning none will suppress host test from printing success code
+        server = UDPServer((SERVER_IP, SERVER_PORT), UDPEchoClient_Handler)
+        print "HOST: Listening for UDP connections..."
+        self.send_server_ip_port(selftest, SERVER_IP, SERVER_PORT)
+        server.serve_forever()