Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

tools/host_tests/dev_null_auto.py@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 """
elessair 0:f269e3021894 2 mbed SDK
elessair 0:f269e3021894 3 Copyright (c) 2011-2013 ARM Limited
elessair 0:f269e3021894 4
elessair 0:f269e3021894 5 Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 6 you may not use this file except in compliance with the License.
elessair 0:f269e3021894 7 You may obtain a copy of the License at
elessair 0:f269e3021894 8
elessair 0:f269e3021894 9 http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 10
elessair 0:f269e3021894 11 Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 12 distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 14 See the License for the specific language governing permissions and
elessair 0:f269e3021894 15 limitations under the License.
elessair 0:f269e3021894 16 """
elessair 0:f269e3021894 17
elessair 0:f269e3021894 18 class DevNullTest():
elessair 0:f269e3021894 19
elessair 0:f269e3021894 20 def check_readline(self, selftest, text):
elessair 0:f269e3021894 21 """ Reads line from serial port and checks if text was part of read string
elessair 0:f269e3021894 22 """
elessair 0:f269e3021894 23 result = False
elessair 0:f269e3021894 24 c = selftest.mbed.serial_readline()
elessair 0:f269e3021894 25 if c and text in c:
elessair 0:f269e3021894 26 result = True
elessair 0:f269e3021894 27 return result
elessair 0:f269e3021894 28
elessair 0:f269e3021894 29 def test(self, selftest):
elessair 0:f269e3021894 30 result = True
elessair 0:f269e3021894 31 # Test should print some text and later stop printing
elessair 0:f269e3021894 32 # 'MBED: re-routing stdout to /null'
elessair 0:f269e3021894 33 res = self.check_readline(selftest, "re-routing stdout to /null")
elessair 0:f269e3021894 34 if not res:
elessair 0:f269e3021894 35 # We haven't read preamble line
elessair 0:f269e3021894 36 result = False
elessair 0:f269e3021894 37 else:
elessair 0:f269e3021894 38 # Check if there are printed characters
elessair 0:f269e3021894 39 str = ''
elessair 0:f269e3021894 40 for i in range(3):
elessair 0:f269e3021894 41 c = selftest.mbed.serial_read(32)
elessair 0:f269e3021894 42 if c is None:
elessair 0:f269e3021894 43 return selftest.RESULT_IO_SERIAL
elessair 0:f269e3021894 44 else:
elessair 0:f269e3021894 45 str += c
elessair 0:f269e3021894 46 if len(str) > 0:
elessair 0:f269e3021894 47 result = False
elessair 0:f269e3021894 48 break
elessair 0:f269e3021894 49 selftest.notify("Received %d bytes: %s"% (len(str), str))
elessair 0:f269e3021894 50 return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE