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