mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-12-22 21:22:37 +01:00
a773aa6a07
All tests which could avoid calling scan() directly have been changed to use the 'full_scan' argument to get_ordered_network. This was done because of unreliable scanning behavior on slower systems, like VMs. If we get unlucky with the scheduler some beacons are not received in time and in turn scan results are missing. Using full_scan=True works around this issue by repeatedly scanning until the SSID is found.
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
#! /usr/bin/python3
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import unittest
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import sys
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import time
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sys.path.append('../util')
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import iwd
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from iwd import IWD
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from iwd import NetworkType
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from hwsim import Hwsim
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class TstAgent(iwd.SignalAgent):
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def handle_new_level(self, path, level):
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self.device_path = path
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self.level = level
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self.calls += 1
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class Test(unittest.TestCase):
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def test_rssi_agent(self):
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rule = Hwsim().rules.create()
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rule.signal = -4000
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rule.enabled = True
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wd = IWD()
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device = wd.list_devices(1)[0]
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# Register agent early to catch any unexpected notifications
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agent = TstAgent()
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agent.calls = 0
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device.register_signal_agent(agent, [-20, -40, -60, -80])
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ordered_network = device.get_ordered_network('TestOpen', full_scan=True)
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self.assertEqual(ordered_network.type, NetworkType.open)
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self.assertEqual(ordered_network.signal_strength, -4000)
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condition = 'not obj.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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ordered_network.network_object.connect()
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(device, condition)
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# Test with 5 signal strength levels first, then with 3
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def test_list(rssi_pairs):
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# Roughly test big jumps in RSSI value that cross from one
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# level range to another, then with small changes that shouldn't
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# cause any notification.
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# Allow 3 secs for the agent to receive the final signal
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# strength level number and allow more than one notification
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# until it reaches the target value because the kernel (mac80211
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# at least) uses a moving-window average value over the last RSSI
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# measurements received from the driver and it changes gradually.
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# Normally 1 second is enough.
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self.assertEqual(agent.calls, 0)
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for centre, level in rssi_pairs:
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rule.signal = centre
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agent.level = -1
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condition = 'obj.level == ' + str(level)
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wd.wait_for_object_condition(agent, condition)
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self.assertTrue(agent.calls > 0)
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self.assertEqual(agent.device_path, device.device_path)
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agent.calls = 0
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for offset in [-900, 500, -100, 900]:
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rule.signal = centre - offset
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wd.wait(0.5)
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self.assertEqual(agent.calls, 0)
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test_list([(-7000, 3), (-1000, 0), (-3000, 1), (-5000, 2),
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(-7000, 3), (-1000, 0), (-5000, 2)])
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device.unregister_signal_agent(agent)
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device.register_signal_agent(agent, [-35, -65])
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test_list([(-1500, 0), (-5000, 1), (-7500, 2), (-1500, 0)])
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device.disconnect()
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condition = 'not obj.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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self.assertEqual(agent.calls, 0)
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device.unregister_signal_agent(agent)
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@classmethod
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def setUpClass(cls):
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pass
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@classmethod
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def tearDownClass(cls):
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IWD.clear_storage()
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if __name__ == '__main__':
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unittest.main(exit=True)
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