Alessandro Angelino / mbed-tools

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Fork of mbed-tools by Morpheus

host_tests/dev_null_auto.py@0:4a2e5f0422d6, 2016-03-30 (annotated)

Committer:
screamer
Date:
Wed Mar 30 16:23:44 2016 +0000
Revision:
0:4a2e5f0422d6
Initial revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:4a2e5f0422d6 1 """
screamer 0:4a2e5f0422d6 2 mbed SDK
screamer 0:4a2e5f0422d6 3 Copyright (c) 2011-2013 ARM Limited
screamer 0:4a2e5f0422d6 4
screamer 0:4a2e5f0422d6 5 Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:4a2e5f0422d6 6 you may not use this file except in compliance with the License.
screamer 0:4a2e5f0422d6 7 You may obtain a copy of the License at
screamer 0:4a2e5f0422d6 8
screamer 0:4a2e5f0422d6 9 http://www.apache.org/licenses/LICENSE-2.0
screamer 0:4a2e5f0422d6 10
screamer 0:4a2e5f0422d6 11 Unless required by applicable law or agreed to in writing, software
screamer 0:4a2e5f0422d6 12 distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:4a2e5f0422d6 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:4a2e5f0422d6 14 See the License for the specific language governing permissions and
screamer 0:4a2e5f0422d6 15 limitations under the License.
screamer 0:4a2e5f0422d6 16 """
screamer 0:4a2e5f0422d6 17
screamer 0:4a2e5f0422d6 18 class DevNullTest():
screamer 0:4a2e5f0422d6 19
screamer 0:4a2e5f0422d6 20 def check_readline(self, selftest, text):
screamer 0:4a2e5f0422d6 21 """ Reads line from serial port and checks if text was part of read string
screamer 0:4a2e5f0422d6 22 """
screamer 0:4a2e5f0422d6 23 result = False
screamer 0:4a2e5f0422d6 24 c = selftest.mbed.serial_readline()
screamer 0:4a2e5f0422d6 25 if c and text in c:
screamer 0:4a2e5f0422d6 26 result = True
screamer 0:4a2e5f0422d6 27 return result
screamer 0:4a2e5f0422d6 28
screamer 0:4a2e5f0422d6 29 def test(self, selftest):
screamer 0:4a2e5f0422d6 30 result = True
screamer 0:4a2e5f0422d6 31 # Test should print some text and later stop printing
screamer 0:4a2e5f0422d6 32 # 'MBED: re-routing stdout to /null'
screamer 0:4a2e5f0422d6 33 res = self.check_readline(selftest, "re-routing stdout to /null")
screamer 0:4a2e5f0422d6 34 if not res:
screamer 0:4a2e5f0422d6 35 # We haven't read preamble line
screamer 0:4a2e5f0422d6 36 result = False
screamer 0:4a2e5f0422d6 37 else:
screamer 0:4a2e5f0422d6 38 # Check if there are printed characters
screamer 0:4a2e5f0422d6 39 str = ''
screamer 0:4a2e5f0422d6 40 for i in range(3):
screamer 0:4a2e5f0422d6 41 c = selftest.mbed.serial_read(32)
screamer 0:4a2e5f0422d6 42 if c is None:
screamer 0:4a2e5f0422d6 43 return selftest.RESULT_IO_SERIAL
screamer 0:4a2e5f0422d6 44 else:
screamer 0:4a2e5f0422d6 45 str += c
screamer 0:4a2e5f0422d6 46 if len(str) > 0:
screamer 0:4a2e5f0422d6 47 result = False
screamer 0:4a2e5f0422d6 48 break
screamer 0:4a2e5f0422d6 49 selftest.notify("Received %d bytes: %s"% (len(str), str))
screamer 0:4a2e5f0422d6 50 return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE