EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

tools/host_tests/dev_null_auto.py@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 """
be_bryan 0:b74591d5ab33 2 mbed SDK
be_bryan 0:b74591d5ab33 3 Copyright (c) 2011-2013 ARM Limited
be_bryan 0:b74591d5ab33 4
be_bryan 0:b74591d5ab33 5 Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 6 you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 7 You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 8
be_bryan 0:b74591d5ab33 9 http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 10
be_bryan 0:b74591d5ab33 11 Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 12 distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 14 See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 15 limitations under the License.
be_bryan 0:b74591d5ab33 16 """
be_bryan 0:b74591d5ab33 17
be_bryan 0:b74591d5ab33 18 class DevNullTest():
be_bryan 0:b74591d5ab33 19
be_bryan 0:b74591d5ab33 20 def check_readline(self, selftest, text):
be_bryan 0:b74591d5ab33 21 """ Reads line from serial port and checks if text was part of read string
be_bryan 0:b74591d5ab33 22 """
be_bryan 0:b74591d5ab33 23 result = False
be_bryan 0:b74591d5ab33 24 c = selftest.mbed.serial_readline()
be_bryan 0:b74591d5ab33 25 if c and text in c:
be_bryan 0:b74591d5ab33 26 result = True
be_bryan 0:b74591d5ab33 27 return result
be_bryan 0:b74591d5ab33 28
be_bryan 0:b74591d5ab33 29 def test(self, selftest):
be_bryan 0:b74591d5ab33 30 result = True
be_bryan 0:b74591d5ab33 31 # Test should print some text and later stop printing
be_bryan 0:b74591d5ab33 32 # 'MBED: re-routing stdout to /null'
be_bryan 0:b74591d5ab33 33 res = self.check_readline(selftest, "re-routing stdout to /null")
be_bryan 0:b74591d5ab33 34 if not res:
be_bryan 0:b74591d5ab33 35 # We haven't read preamble line
be_bryan 0:b74591d5ab33 36 result = False
be_bryan 0:b74591d5ab33 37 else:
be_bryan 0:b74591d5ab33 38 # Check if there are printed characters
be_bryan 0:b74591d5ab33 39 str = ''
be_bryan 0:b74591d5ab33 40 for i in range(3):
be_bryan 0:b74591d5ab33 41 c = selftest.mbed.serial_read(32)
be_bryan 0:b74591d5ab33 42 if c is None:
be_bryan 0:b74591d5ab33 43 return selftest.RESULT_IO_SERIAL
be_bryan 0:b74591d5ab33 44 else:
be_bryan 0:b74591d5ab33 45 str += c
be_bryan 0:b74591d5ab33 46 if len(str) > 0:
be_bryan 0:b74591d5ab33 47 result = False
be_bryan 0:b74591d5ab33 48 break
be_bryan 0:b74591d5ab33 49 selftest.notify("Received %d bytes: %s"% (len(str), str))
be_bryan 0:b74591d5ab33 50 return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE