Greg Steiert / maxim_dev

Dependents:   sensomed

tools/host_tests/echo.py@0:0e018d759a2a, 2016-11-08 (annotated)

Committer:
switches
Date:
Tue Nov 08 18:27:11 2016 +0000
Revision:
0:0e018d759a2a
Initial commit

Who changed what in which revision?

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switches 0:0e018d759a2a 1 """
switches 0:0e018d759a2a 2 mbed SDK
switches 0:0e018d759a2a 3 Copyright (c) 2011-2013 ARM Limited
switches 0:0e018d759a2a 4
switches 0:0e018d759a2a 5 Licensed under the Apache License, Version 2.0 (the "License");
switches 0:0e018d759a2a 6 you may not use this file except in compliance with the License.
switches 0:0e018d759a2a 7 You may obtain a copy of the License at
switches 0:0e018d759a2a 8
switches 0:0e018d759a2a 9 http://www.apache.org/licenses/LICENSE-2.0
switches 0:0e018d759a2a 10
switches 0:0e018d759a2a 11 Unless required by applicable law or agreed to in writing, software
switches 0:0e018d759a2a 12 distributed under the License is distributed on an "AS IS" BASIS,
switches 0:0e018d759a2a 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:0e018d759a2a 14 See the License for the specific language governing permissions and
switches 0:0e018d759a2a 15 limitations under the License.
switches 0:0e018d759a2a 16 """
switches 0:0e018d759a2a 17
switches 0:0e018d759a2a 18 import sys
switches 0:0e018d759a2a 19 import uuid
switches 0:0e018d759a2a 20 from sys import stdout
switches 0:0e018d759a2a 21
switches 0:0e018d759a2a 22 class EchoTest():
switches 0:0e018d759a2a 23
switches 0:0e018d759a2a 24 # Test parameters
switches 0:0e018d759a2a 25 TEST_SERIAL_BAUDRATE = 115200
switches 0:0e018d759a2a 26 TEST_LOOP_COUNT = 50
switches 0:0e018d759a2a 27
switches 0:0e018d759a2a 28 def test(self, selftest):
switches 0:0e018d759a2a 29 """ This host test will use mbed serial port with
switches 0:0e018d759a2a 30 baudrate 115200 to perform echo test on that port.
switches 0:0e018d759a2a 31 """
switches 0:0e018d759a2a 32 # Custom initialization for echo test
switches 0:0e018d759a2a 33 selftest.mbed.init_serial_params(serial_baud=self.TEST_SERIAL_BAUDRATE)
switches 0:0e018d759a2a 34 selftest.mbed.init_serial()
switches 0:0e018d759a2a 35
switches 0:0e018d759a2a 36 # Test function, return True or False to get standard test notification on stdout
switches 0:0e018d759a2a 37 selftest.mbed.flush()
switches 0:0e018d759a2a 38 selftest.notify("HOST: Starting the ECHO test")
switches 0:0e018d759a2a 39 result = True
switches 0:0e018d759a2a 40
switches 0:0e018d759a2a 41 """ This ensures that there are no parasites left in the serial buffer.
switches 0:0e018d759a2a 42 """
switches 0:0e018d759a2a 43 for i in range(0, 2):
switches 0:0e018d759a2a 44 selftest.mbed.serial_write("\n")
switches 0:0e018d759a2a 45 c = selftest.mbed.serial_readline()
switches 0:0e018d759a2a 46
switches 0:0e018d759a2a 47 for i in range(0, self.TEST_LOOP_COUNT):
switches 0:0e018d759a2a 48 TEST_STRING = str(uuid.uuid4()) + "\n"
switches 0:0e018d759a2a 49 selftest.mbed.serial_write(TEST_STRING)
switches 0:0e018d759a2a 50 c = selftest.mbed.serial_readline()
switches 0:0e018d759a2a 51 if c is None:
switches 0:0e018d759a2a 52 return selftest.RESULT_IO_SERIAL
switches 0:0e018d759a2a 53 if c.strip() != TEST_STRING.strip():
switches 0:0e018d759a2a 54 selftest.notify('HOST: "%s" != "%s"'% (c, TEST_STRING))
switches 0:0e018d759a2a 55 result = False
switches 0:0e018d759a2a 56 else:
switches 0:0e018d759a2a 57 sys.stdout.write('.')
switches 0:0e018d759a2a 58 stdout.flush()
switches 0:0e018d759a2a 59 return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE