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iwd/autotests/testRSSIAgent/test.py
Andrew Zaborowski 49930c6d77 autotests: Add a SignalLevelAgent test
This test takes about 40 seconds.
2017-05-30 11:42:15 -05:00

113 lines
3.6 KiB
Python

#! /usr/bin/python3
import unittest
import sys
import time
sys.path.append('../util')
import iwd
from iwd import IWD
from iwd import NetworkType
from hwsim import Hwsim
class TstAgent(iwd.SignalAgent):
def handle_new_level(self, path, level):
self.device_path = path
self.level = level
self.calls += 1
class Test(unittest.TestCase):
def test_rssi_agent(self):
rule = Hwsim().rules.create()
rule.signal = -4000
wd = IWD()
device = wd.list_devices()[0];
# Register agent early to catch any unexpected notifications
agent = TstAgent()
agent.calls = 0
device.register_signal_agent(agent, [-20, -40, -60, -80])
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
device.scan()
condition = 'obj.scanning'
wd.wait_for_object_condition(device, condition)
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
ordered_networks = device.get_ordered_networks()
self.assertEqual(len(ordered_networks), 1)
ordered_network = ordered_networks[0]
self.assertEqual(ordered_network.name, "TestOpen")
self.assertEqual(ordered_network.type, NetworkType.open)
self.assertEqual(ordered_network.signal_strength, -4000)
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
ordered_network.network_object.connect()
condition = 'obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
# Test with 5 signal strength levels first, then with 3
def test_list(rssi_pairs):
# Roughly test big jumps in RSSI value that cross from one
# level range to another, then with small changes that shouldn't
# cause any notification.
# Allow 3 secs for the agent to receive the final signal
# strength level number and allow more than one notification
# until it reaches the target value because the kernel (mac80211
# at least) uses a moving-window average value over the last RSSI
# measurements received from the driver and it changes gradually.
# Normally 1 second is enough.
self.assertEqual(agent.calls, 0)
for centre, level in rssi_pairs:
rule.signal = centre
agent.level = -1
condition = 'obj.level == ' + str(level)
wd.wait_for_object_condition(agent, condition, 3)
self.assertTrue(agent.calls > 0)
self.assertEqual(agent.device_path, device.device_path)
agent.calls = 0
for offset in [-900, 500, -100, 900]:
rule.signal = centre - offset
wd.wait(0.5)
self.assertEqual(agent.calls, 0)
test_list([(-7000, 3), (-1000, 0), (-3000, 1), (-5000, 2),
(-7000, 3), (-1000, 0), (-5000, 2)])
device.unregister_signal_agent(agent)
device.register_signal_agent(agent, [-35, -65])
test_list([(-1500, 0), (-5000, 1), (-7500, 2), (-1500, 0)])
device.disconnect()
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
self.assertEqual(agent.calls, 0)
device.unregister_signal_agent(agent)
@classmethod
def setUpClass(cls):
pass
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
if __name__ == '__main__':
unittest.main(exit=True)