Diff: mbed-os/TESTS/host_tests/system_reset.py

Revision:

0:8fdf9a60065b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/TESTS/host_tests/system_reset.py	Wed Oct 10 00:33:53 2018 +0000
@@ -0,0 +1,75 @@
+"""
+Copyright (c) 2018 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 time
+from mbed_host_tests import BaseHostTest
+from mbed_host_tests.host_tests_runner.host_test_default import DefaultTestSelector
+
+DEFAULT_CYCLE_PERIOD = 1.0
+
+MSG_VALUE_DUMMY = '0'
+
+MSG_KEY_DEVICE_READY = 'ready'
+MSG_KEY_DEVICE_RESET = 'reset'
+MSG_KEY_SYNC = '__sync'
+
+class SystemResetTest(BaseHostTest):
+    """Test for the system_reset API.
+
+    Given a device running code
+    When the device is restarted using @a system_reset()
+    Then the device is restarted
+    """
+
+    def __init__(self):
+        super(SystemResetTest, self).__init__()
+        self.reset = False
+        self.test_steps_sequence = self.test_steps()
+        # Advance the coroutine to it's first yield statement.
+        self.test_steps_sequence.send(None)
+
+    def setup(self):
+        self.register_callback(MSG_KEY_DEVICE_READY, self.cb_device_ready)
+
+    def cb_device_ready(self, key, value, timestamp):
+        """Acknowledge device rebooted correctly and feed the test execution
+        """
+        self.reset = True
+
+        try:
+            if self.test_steps_sequence.send(value):
+                self.notify_complete(True)
+        except (StopIteration, RuntimeError) as exc:
+            self.notify_complete(False)
+
+    def test_steps(self):
+        """Reset the device and check the status
+        """
+        system_reset = yield
+        self.reset = False
+
+        wait_after_reset = self.get_config_item('forced_reset_timeout')
+        wait_after_reset = wait_after_reset if wait_after_reset is not None else DEFAULT_CYCLE_PERIOD
+
+        self.send_kv(MSG_KEY_DEVICE_RESET, MSG_VALUE_DUMMY)
+        time.sleep(wait_after_reset)
+        self.send_kv(MSG_KEY_SYNC, MSG_VALUE_DUMMY)
+
+        system_reset = yield
+        if self.reset == False:
+            raise RuntimeError('Platform did not reset as expected.')
+
+        # The sequence is correct -- test passed.
+        yield True