tool/mbed/mbed-sdk/workspace_tools/host_tests/tcpecho_server_auto.py

   1 """
   2 mbed SDK
   3 Copyright (c) 2011-2013 ARM Limited
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9     http://www.apache.org/licenses/LICENSE-2.0
  10
  11 Unless required by applicable law or agreed to in writing, software
  12 distributed under the License is distributed on an "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 See the License for the specific language governing permissions and
  15 limitations under the License.
  16 """
  17
  18 import re
  19 import sys
  20 import uuid
  21 import socket
  22 from sys import stdout
  23
  24 class TCPEchoServerTest():
  25     ECHO_SERVER_ADDRESS = ""
  26     ECHO_PORT = 0
  27     ECHO_LOOPs = 100
  28     s = None # Socket
  29
  30     PATTERN_SERVER_IP = "Server IP Address is (\d+).(\d+).(\d+).(\d+):(\d+)"
  31     re_detect_server_ip = re.compile(PATTERN_SERVER_IP)
  32
  33     def test(self, selftest):
  34         result = False
  35         c = selftest.mbed.serial_readline()
  36         if c is None:
  37             return selftest.RESULT_IO_SERIAL
  38         selftest.notify(c)
  39
  40         m = self.re_detect_server_ip.search(c)
  41         if m and len(m.groups()):
  42             self.ECHO_SERVER_ADDRESS = ".".join(m.groups()[:4])
  43             self.ECHO_PORT = int(m.groups()[4]) # must be integer for socket.connect method
  44             selftest.notify("HOST: TCP Server found at: " + self.ECHO_SERVER_ADDRESS + ":" + str(self.ECHO_PORT))
  45
  46             # We assume this test fails so can't send 'error' message to server
  47             try:
  48                 self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  49                 self.s.connect((self.ECHO_SERVER_ADDRESS, self.ECHO_PORT))
  50             except Exception, e:
  51                 self.s = None
  52                 selftest.notify("HOST: Socket error: %s"% e)
  53                 return selftest.RESULT_ERROR
  54
  55             print 'HOST: Sending %d echo strings...'% self.ECHO_LOOPs,
  56             for i in range(0, self.ECHO_LOOPs):
  57                 TEST_STRING = str(uuid.uuid4())
  58                 try:
  59                     self.s.sendall(TEST_STRING)
  60                     data = self.s.recv(128)
  61                 except Exception, e:
  62                     self.s = None
  63                     selftest.notify("HOST: Socket error: %s"% e)
  64                     return selftest.RESULT_ERROR
  65
  66                 received_str = repr(data)[1:-1]
  67                 if TEST_STRING == received_str: # We need to cut not needed single quotes from the string
  68                     sys.stdout.write('.')
  69                     stdout.flush()
  70                     result = True
  71                 else:
  72                     print "Expected: "
  73                     print "'%s'"% TEST_STRING
  74                     print "received: "
  75                     print "'%s'"% received_str
  76                     result = False
  77                     break
  78
  79             if self.s is not None:
  80                 self.s.close()
  81         else:
  82             selftest.notify("HOST: TCP Server not found")
  83             result = False
  84         return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE