tool/mbed/mbed-sdk/workspace_tools/host_tests/rtc_auto.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
  18 import re
  19 from time import time, strftime, gmtime
  20
  21 class RTCTest():
  22     PATTERN_RTC_VALUE = "\[(\d+)\] \[(\d+-\d+-\d+ \d+:\d+:\d+ [AaPpMm]{2})\]"
  23     re_detect_rtc_value = re.compile(PATTERN_RTC_VALUE)
  24
  25     def test(self, selftest):
  26         test_result = True
  27         start = time()
  28         sec_prev = 0
  29         for i in range(0, 5):
  30             # Timeout changed from default: we need to wait longer for some boards to start-up
  31             c = selftest.mbed.serial_readline(timeout=10)
  32             if c is None:
  33                 return selftest.RESULT_IO_SERIAL
  34             selftest.notify(c.strip())
  35             delta = time() - start
  36             m = self.re_detect_rtc_value.search(c)
  37             if m and len(m.groups()):
  38                 sec = int(m.groups()[0])
  39                 time_str = m.groups()[1]
  40                 correct_time_str = strftime("%Y-%m-%d %H:%M:%S %p", gmtime(float(sec)))
  41                 single_result = time_str == correct_time_str and sec > 0 and sec > sec_prev
  42                 test_result = test_result and single_result
  43                 result_msg = "OK" if single_result else "FAIL"
  44                 selftest.notify("HOST: [%s] [%s] received time %+d sec after %.2f sec... %s"% (sec, time_str, sec - sec_prev, delta, result_msg))
  45                 sec_prev = sec
  46             else:
  47                 test_result = False
  48                 break
  49             start = time()
  50         return selftest.RESULT_SUCCESS if test_result else selftest.RESULT_FAILURE