""" mbed SDK Copyright (c) 2011-2013 ARM Limited Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. """ import re import random from time import time class StdioTest(): PATTERN_INT_VALUE = "Your value was: (-?\d+)" re_detect_int_value = re.compile(PATTERN_INT_VALUE) def test(self, selftest): test_result = True c = selftest.mbed.serial_readline() # {{start}} preamble if c is None: return selftest.RESULT_IO_SERIAL selftest.notify(c) for i in range(0, 10): random_integer = random.randint(-99999, 99999) selftest.notify("HOST: Generated number: " + str(random_integer)) start = time() selftest.mbed.serial_write(str(random_integer) + "\n") serial_stdio_msg = selftest.mbed.serial_readline() if serial_stdio_msg is None: return selftest.RESULT_IO_SERIAL delay_time = time() - start selftest.notify(serial_stdio_msg.strip()) # Searching for reply with scanned values m = self.re_detect_int_value.search(serial_stdio_msg) if m and len(m.groups()): int_value = m.groups()[0] int_value_cmp = random_integer == int(int_value) test_result = test_result and int_value_cmp selftest.notify("HOST: Number %s read after %.3f sec ... [%s]"% (int_value, delay_time, "OK" if int_value_cmp else "FAIL")) else: test_result = False break return selftest.RESULT_SUCCESS if test_result else selftest.RESULT_FAILURE