mirror of https://github.com/ARMmbed/mbed-os.git
148 lines
4.9 KiB
Python
148 lines
4.9 KiB
Python
"""
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Copyright (c) 2018-2020, Arm Limited and affiliates
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SPDX-License-Identifier: Apache-2.0
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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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"""
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This script is the host script for trng test sequence, it send the
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step signaling sequence and receive and transmit data to the device after
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reset if necesarry (default loading and storing mechanism while reseting the device
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is KVStore, in case KVStore isn't enabled we'll use current infrastructure,
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for more details see main.cpp file)
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"""
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import time
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from mbed_host_tests import BaseHostTest
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from mbed_host_tests.host_tests_runner.host_test_default import DefaultTestSelector
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from time import sleep
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DEFAULT_CYCLE_PERIOD = 1.0
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MSG_VALUE_DUMMY = '0'
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MSG_TRNG_READY = 'ready'
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MSG_TRNG_BUFFER = 'buffer'
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MSG_TRNG_TEST_STEP1 = 'check_step1'
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MSG_TRNG_TEST_STEP2 = 'check_step2'
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MSG_KEY_SYNC = '__sync'
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MSG_KEY_RESET_COMPLETE = 'reset_complete'
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MSG_KEY_TEST_SUITE_ENDED = 'Test_suite_ended'
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MSG_KEY_EXIT = 'exit'
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class TRNGResetTest(BaseHostTest):
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"""Test for the TRNG API.
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"""
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def __init__(self):
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super(TRNGResetTest, self).__init__()
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self.did_reset = False
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self.ready = False
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self.suite_ended = False
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self.buffer = 0
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self.test_steps_sequence = self.test_steps()
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# Advance the coroutine to it's first yield statement.
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self.test_steps_sequence.send(None)
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#define callback functions for msg handling
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def setup(self):
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self.register_callback(MSG_TRNG_READY, self.cb_device_ready)
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self.register_callback(MSG_TRNG_BUFFER, self.cb_trng_buffer)
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self.register_callback(MSG_KEY_TEST_SUITE_ENDED, self.cb_device_test_suit_ended)
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self.register_callback(MSG_KEY_RESET_COMPLETE, self.cb_reset_complete)
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#receive sent data from device before reset
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def cb_trng_buffer(self, key, value, timestamp):
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"""Acknowledge device rebooted correctly and feed the test execution
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"""
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self.buffer = value
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try:
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if self.test_steps_sequence.send(value):
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self.notify_complete(True)
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except (StopIteration, RuntimeError) as exc:
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self.notify_complete(False)
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def cb_device_ready(self, key, value, timestamp):
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"""Acknowledge device rebooted correctly and feed the test execution
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"""
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self.ready = True
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try:
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if self.test_steps_sequence.send(value):
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self.notify_complete(True)
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except (StopIteration, RuntimeError) as exc:
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self.notify_complete(False)
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def cb_reset_complete(self, key, value, timestamp):
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"""Acknowledge reset complete
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"""
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self.did_reset = True
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try:
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if self.test_steps_sequence.send(value):
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self.notify_complete(True)
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except (StopIteration, RuntimeError) as exc:
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self.notify_complete(False)
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def cb_device_test_suit_ended(self, key, value, timestamp):
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"""Acknowledge device finished a test step correctly and feed the test execution
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"""
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self.suite_ended = True
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try:
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if self.test_steps_sequence.send(value):
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self.notify_complete(True)
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except (StopIteration, RuntimeError) as exc:
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self.notify_complete(False)
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#define test steps and actions
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def test_steps(self):
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"""Test step 1
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"""
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wait_for_communication = yield
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self.ready = False
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self.did_reset = False
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self.suite_ended = False
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self.send_kv(MSG_TRNG_TEST_STEP1, MSG_VALUE_DUMMY)
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wait_for_communication = yield
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if self.buffer == 0:
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raise RuntimeError('Phase 1: No buffer received.')
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self.reset()
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"""Test step 2 (After reset)
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"""
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wait_for_communication = yield
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if self.did_reset == False:
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raise RuntimeError('Phase 1: Platform did not reset as expected.')
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self.send_kv(MSG_KEY_SYNC, MSG_VALUE_DUMMY)
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wait_for_communication = yield
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if self.ready == False:
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raise RuntimeError('Phase 1: Platform not ready as expected.')
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self.send_kv(MSG_TRNG_TEST_STEP2, self.buffer)
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wait_for_communication = yield
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if self.suite_ended == False:
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raise RuntimeError('Test failed.')
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self.send_kv(MSG_KEY_EXIT, MSG_VALUE_DUMMY)
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# The sequence is correct -- test passed.
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yield
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