tool/mbed/mbed-sdk/workspace_tools/host_tests/echo_flow_control.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 from host_test import Test
  18
  19
  20 class EchoTest(Test):
  21     def __init__(self):
  22         Test.__init__(self)
  23         self.mbed.init_serial()
  24         self.mbed.extra_serial.rtscts = True
  25         self.mbed.reset()
  26
  27     def test(self):
  28         self.mbed.flush()
  29         self.notify("Starting the ECHO test")
  30         TEST="longer serial test"
  31         check = True
  32         for i in range(1, 100):
  33             self.mbed.extra_serial.write(TEST + "\n")
  34             l = self.mbed.extra_serial.readline().strip()
  35             if not l: continue
  36
  37             if l != TEST:
  38                 check = False
  39                 self.notify('"%s" != "%s"' % (l, TEST))
  40             else:
  41                 if (i % 10) == 0:
  42                     self.notify('.')
  43
  44         return check
  45
  46
  47 if __name__ == '__main__':
  48     EchoTest().run()