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test_wifi_service.py
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713 lines (529 loc) · 23.7 KB
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import unittest
import sys
# Add tests directory to path for network_test_helper
sys.path.insert(0, '../tests')
# Import network test helpers
from network_test_helper import MockNetwork, MockTime
# Mock config classes
class MockSharedPreferences:
"""Mock SharedPreferences for testing."""
_all_data = {} # Class-level storage
def __init__(self, app_id):
self.app_id = app_id
if app_id not in MockSharedPreferences._all_data:
MockSharedPreferences._all_data[app_id] = {}
def get_dict(self, key):
return MockSharedPreferences._all_data.get(self.app_id, {}).get(key, {})
def edit(self):
return MockEditor(self)
@classmethod
def reset_all(cls):
cls._all_data = {}
class MockEditor:
"""Mock editor for SharedPreferences."""
def __init__(self, prefs):
self.prefs = prefs
self.pending = {}
def put_dict(self, key, value):
self.pending[key] = value
def commit(self):
if self.prefs.app_id not in MockSharedPreferences._all_data:
MockSharedPreferences._all_data[self.prefs.app_id] = {}
MockSharedPreferences._all_data[self.prefs.app_id].update(self.pending)
# Create mock mpos module
class MockMpos:
"""Mock mpos module with config and time."""
class config:
@staticmethod
def SharedPreferences(app_id):
return MockSharedPreferences(app_id)
class time:
@staticmethod
def sync_time():
pass # No-op for testing
# Inject mocks before importing WifiService
sys.modules['mpos'] = MockMpos
sys.modules['mpos.config'] = MockMpos.config
sys.modules['mpos.time'] = MockMpos.time
# Add path to wifi_service.py
sys.path.append('lib/mpos/net')
# Import WifiService
from wifi_service import WifiService
class TestWifiServiceConnect(unittest.TestCase):
"""Test WifiService.connect() method."""
def setUp(self):
"""Set up test fixtures."""
MockSharedPreferences.reset_all()
WifiService.access_points = {}
WifiService.wifi_busy = False
def tearDown(self):
"""Clean up after test."""
WifiService.access_points = {}
WifiService.wifi_busy = False
def test_connect_to_saved_network(self):
"""Test connecting to a saved network."""
mock_network = MockNetwork(connected=False)
WifiService.access_points = {
"TestNetwork": {"password": "testpass123"}
}
# Configure mock scan results
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
mock_wlan._scan_results = [(b"TestNetwork", -50, 1, 3, b"", 0)]
# Mock connect to succeed immediately
def mock_connect(ssid, password):
mock_wlan._connected = True
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertTrue(result)
def test_connect_with_no_saved_networks(self):
"""Test connecting when no networks are saved."""
mock_network = MockNetwork(connected=False)
WifiService.access_points = {}
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
mock_wlan._scan_results = [(b"UnsavedNetwork", -50, 1, 3, b"", 0)]
result = WifiService.connect(network_module=mock_network)
self.assertFalse(result)
def test_connect_when_no_saved_networks_available(self):
"""Test connecting when saved networks aren't in range."""
mock_network = MockNetwork(connected=False)
WifiService.access_points = {
"SavedNetwork": {"password": "password123"}
}
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
mock_wlan._scan_results = [(b"DifferentNetwork", -50, 1, 3, b"", 0)]
result = WifiService.connect(network_module=mock_network)
self.assertFalse(result)
class TestWifiServiceAttemptConnecting(unittest.TestCase):
"""Test WifiService.attempt_connecting() method."""
def test_successful_connection(self):
"""Test successful WiFi connection."""
mock_network = MockNetwork(connected=False)
mock_time = MockTime()
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Mock connect to succeed immediately
call_count = [0]
def mock_connect(ssid, password):
pass # Don't set connected yet
def mock_isconnected():
call_count[0] += 1
if call_count[0] >= 1:
return True
return False
mock_wlan.connect = mock_connect
mock_wlan.isconnected = mock_isconnected
result = WifiService.attempt_connecting(
"TestSSID",
"testpass",
network_module=mock_network,
time_module=mock_time
)
self.assertTrue(result)
def test_connection_timeout(self):
"""Test connection timeout after 10 attempts."""
mock_network = MockNetwork(connected=False)
mock_time = MockTime()
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Connection never succeeds
def mock_isconnected():
return False
mock_wlan.isconnected = mock_isconnected
result = WifiService.attempt_connecting(
"TestSSID",
"testpass",
network_module=mock_network,
time_module=mock_time
)
self.assertFalse(result)
# Should have slept 10 times
self.assertEqual(len(mock_time.get_sleep_calls()), 10)
def test_connection_aborted_when_wifi_disabled(self):
"""Test connection aborts if WiFi is disabled during attempt."""
mock_network = MockNetwork(connected=False)
mock_time = MockTime()
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Never connected
def mock_isconnected():
return False
# WiFi becomes inactive on 3rd check
check_count = [0]
def mock_active(state=None):
if state is not None:
mock_wlan._active = state
return None
check_count[0] += 1
if check_count[0] >= 3:
return False
return True
mock_wlan.isconnected = mock_isconnected
mock_wlan.active = mock_active
result = WifiService.attempt_connecting(
"TestSSID",
"testpass",
network_module=mock_network,
time_module=mock_time
)
self.assertFalse(result)
# Should have checked less than 10 times (aborted early)
self.assertTrue(check_count[0] < 10)
def test_connection_error_handling(self):
"""Test handling of connection errors."""
mock_network = MockNetwork(connected=False)
mock_time = MockTime()
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
def raise_error(ssid, password):
raise Exception("Connection failed")
mock_wlan.connect = raise_error
result = WifiService.attempt_connecting(
"TestSSID",
"testpass",
network_module=mock_network,
time_module=mock_time
)
self.assertFalse(result)
class TestWifiServiceAutoConnect(unittest.TestCase):
"""Test WifiService.auto_connect() method."""
def setUp(self):
"""Set up test fixtures."""
MockSharedPreferences.reset_all()
WifiService.access_points = {}
WifiService.wifi_busy = False
def tearDown(self):
"""Clean up after test."""
WifiService.access_points = {}
WifiService.wifi_busy = False
MockSharedPreferences.reset_all()
def test_auto_connect_with_no_saved_networks(self):
"""Test auto_connect when no networks are saved."""
WifiService.auto_connect()
# Should exit early
self.assertEqual(len(WifiService.access_points), 0)
def test_auto_connect_when_wifi_busy(self):
"""Test auto_connect aborts when WiFi is busy."""
# Save a network
prefs = MockSharedPreferences("com.micropythonos.system.wifiservice")
editor = prefs.edit()
editor.put_dict("access_points", {"TestNet": {"password": "pass"}})
editor.commit()
# Set WiFi as busy
WifiService.wifi_busy = True
WifiService.auto_connect()
# Should still be busy (not changed)
self.assertTrue(WifiService.wifi_busy)
def test_auto_connect_desktop_mode(self):
"""Test auto_connect in desktop mode (no network module)."""
mock_time = MockTime()
# Save a network
prefs = MockSharedPreferences("com.micropythonos.system.wifiservice")
editor = prefs.edit()
editor.put_dict("access_points", {"TestNet": {"password": "pass"}})
editor.commit()
WifiService.auto_connect(network_module=None, time_module=mock_time)
# Should have "slept" to simulate connection
self.assertTrue(len(mock_time.get_sleep_calls()) > 0)
# Should clear wifi_busy flag
self.assertFalse(WifiService.wifi_busy)
class TestWifiServiceIsConnected(unittest.TestCase):
"""Test WifiService.is_connected() method."""
def setUp(self):
"""Set up test fixtures."""
WifiService.wifi_busy = False
def tearDown(self):
"""Clean up after test."""
WifiService.wifi_busy = False
def test_is_connected_when_connected(self):
"""Test is_connected returns True when WiFi is connected."""
mock_network = MockNetwork(connected=True)
result = WifiService.is_connected(network_module=mock_network)
self.assertTrue(result)
def test_is_connected_when_disconnected(self):
"""Test is_connected returns False when WiFi is disconnected."""
mock_network = MockNetwork(connected=False)
result = WifiService.is_connected(network_module=mock_network)
self.assertFalse(result)
def test_is_connected_when_wifi_busy(self):
"""Test is_connected returns False when WiFi is busy."""
mock_network = MockNetwork(connected=True)
WifiService.wifi_busy = True
result = WifiService.is_connected(network_module=mock_network)
# Should return False even though connected
self.assertFalse(result)
def test_is_connected_desktop_mode(self):
"""Test is_connected in desktop mode."""
result = WifiService.is_connected(network_module=None)
# Desktop mode always returns True
self.assertTrue(result)
class TestWifiServiceNetworkManagement(unittest.TestCase):
"""Test network save/forget functionality."""
def setUp(self):
"""Set up test fixtures."""
MockSharedPreferences.reset_all()
WifiService.access_points = {}
def tearDown(self):
"""Clean up after test."""
WifiService.access_points = {}
MockSharedPreferences.reset_all()
def test_save_network(self):
"""Test saving a network."""
WifiService.save_network("MyNetwork", "mypassword123")
# Should be in class-level cache
self.assertTrue("MyNetwork" in WifiService.access_points)
self.assertEqual(WifiService.access_points["MyNetwork"]["password"], "mypassword123")
# Should be persisted
prefs = MockSharedPreferences("com.micropythonos.system.wifiservice")
saved = prefs.get_dict("access_points")
self.assertTrue("MyNetwork" in saved)
def test_save_network_updates_existing(self):
"""Test updating an existing saved network."""
WifiService.save_network("MyNetwork", "oldpassword")
WifiService.save_network("MyNetwork", "newpassword")
# Should have new password
self.assertEqual(WifiService.access_points["MyNetwork"]["password"], "newpassword")
def test_forget_network(self):
"""Test forgetting a saved network."""
WifiService.save_network("MyNetwork", "mypassword")
result = WifiService.forget_network("MyNetwork")
self.assertTrue(result)
self.assertFalse("MyNetwork" in WifiService.access_points)
def test_forget_nonexistent_network(self):
"""Test forgetting a network that doesn't exist."""
result = WifiService.forget_network("NonExistent")
self.assertFalse(result)
def test_get_saved_networks(self):
"""Test getting list of saved networks."""
WifiService.save_network("Network1", "pass1")
WifiService.save_network("Network2", "pass2")
WifiService.save_network("Network3", "pass3")
saved = WifiService.get_saved_networks()
self.assertEqual(len(saved), 3)
self.assertTrue("Network1" in saved)
self.assertTrue("Network2" in saved)
self.assertTrue("Network3" in saved)
def test_get_saved_networks_empty(self):
"""Test getting saved networks when none exist."""
saved = WifiService.get_saved_networks()
self.assertEqual(len(saved), 0)
class TestWifiServiceDisconnect(unittest.TestCase):
"""Test WifiService.disconnect() method."""
def test_disconnect(self):
"""Test disconnecting from WiFi."""
mock_network = MockNetwork(connected=True)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Track calls
disconnect_called = [False]
active_false_called = [False]
def mock_disconnect():
disconnect_called[0] = True
def mock_active(state=None):
if state is False:
active_false_called[0] = True
return True if state is None else None
mock_wlan.disconnect = mock_disconnect
mock_wlan.active = mock_active
WifiService.disconnect(network_module=mock_network)
# Should have called both
self.assertTrue(disconnect_called[0])
self.assertTrue(active_false_called[0])
def test_disconnect_desktop_mode(self):
"""Test disconnect in desktop mode."""
# Should not raise an error
WifiService.disconnect(network_module=None)
class TestWifiServiceRSSISorting(unittest.TestCase):
"""Test RSSI-based network prioritization."""
def setUp(self):
"""Set up test fixtures."""
MockSharedPreferences.reset_all()
WifiService.access_points = {}
WifiService.wifi_busy = False
def tearDown(self):
"""Clean up after tests."""
WifiService.access_points = {}
WifiService.wifi_busy = False
MockSharedPreferences.reset_all()
def test_networks_sorted_by_rssi_strongest_first(self):
"""Test that networks are sorted by RSSI with strongest first."""
# Create mock networks with different RSSI values
# Format: (ssid, bssid, channel, rssi, security, hidden)
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Unsorted networks (weak, strong, medium)
mock_wlan._scan_results = [
(b'WeakNetwork', b'\xaa\xbb\xcc\xdd\xee\xff', 6, -85, 3, False),
(b'StrongNetwork', b'\x11\x22\x33\x44\x55\x66', 1, -45, 3, False),
(b'MediumNetwork', b'\x77\x88\x99\xaa\xbb\xcc', 11, -65, 3, False),
]
# Configure all as saved networks
WifiService.access_points = {
'WeakNetwork': {'password': 'weak123'},
'StrongNetwork': {'password': 'strong123'},
'MediumNetwork': {'password': 'medium123'}
}
# Track connection attempts
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
# Succeed on first attempt
mock_wlan._connected = True
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertTrue(result)
# Should try strongest first (-45 dBm)
self.assertEqual(connection_attempts[0], 'StrongNetwork')
# Should only try one (first succeeds)
self.assertEqual(len(connection_attempts), 1)
def test_multiple_networks_tried_in_rssi_order(self):
"""Test that multiple networks are tried in RSSI order when first fails."""
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Three networks with different signal strengths
mock_wlan._scan_results = [
(b'BadNetwork1', b'\xaa\xbb\xcc\xdd\xee\xff', 1, -40, 3, False),
(b'BadNetwork2', b'\x11\x22\x33\x44\x55\x66', 6, -50, 3, False),
(b'GoodNetwork', b'\x77\x88\x99\xaa\xbb\xcc', 11, -60, 3, False),
]
WifiService.access_points = {
'BadNetwork1': {'password': 'pass1'},
'BadNetwork2': {'password': 'pass2'},
'GoodNetwork': {'password': 'pass3'}
}
# Track attempts and make first two fail
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
# Only succeed on third attempt
if len(connection_attempts) >= 3:
mock_wlan._connected = True
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertTrue(result)
# Verify order: strongest to weakest
self.assertEqual(connection_attempts[0], 'BadNetwork1') # RSSI -40
self.assertEqual(connection_attempts[1], 'BadNetwork2') # RSSI -50
self.assertEqual(connection_attempts[2], 'GoodNetwork') # RSSI -60
self.assertEqual(len(connection_attempts), 3)
def test_duplicate_ssid_strongest_tried_first(self):
"""Test that with duplicate SSIDs, strongest signal is tried first."""
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Real-world scenario: Multiple APs with same SSID
mock_wlan._scan_results = [
(b'MyNetwork', b'\xaa\xbb\xcc\xdd\xee\xff', 1, -70, 3, False),
(b'MyNetwork', b'\x11\x22\x33\x44\x55\x66', 6, -50, 3, False), # Strongest
(b'MyNetwork', b'\x77\x88\x99\xaa\xbb\xcc', 11, -85, 3, False),
]
WifiService.access_points = {
'MyNetwork': {'password': 'mypass123'}
}
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
# Succeed on first
mock_wlan._connected = True
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertTrue(result)
# Should only try once (first is strongest and succeeds)
self.assertEqual(len(connection_attempts), 1)
self.assertEqual(connection_attempts[0], 'MyNetwork')
def test_rssi_order_with_real_scan_data(self):
"""Test with real scan data from actual ESP32 device."""
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Real scan output from user's example
mock_wlan._scan_results = [
(b'Channel 8', b'\xde\xec^\x8f\x00A', 11, -47, 3, False),
(b'Baptistus', b'\xd8\xec^\x8f\x00A', 11, -48, 7, False),
(b'telenet-BD74DC9', b'TgQ>t\xe7', 11, -70, 3, False),
(b'Galaxy S10+64bf', b'b\x19\xdf\xef\xb0\x8f', 11, -83, 3, False),
(b'Najeeb\xe2\x80\x99s iPhone', b"F\x07'\xb8\x0b0", 6, -84, 7, False),
(b'DIRECT-83-HP OfficeJet Pro 7740', b'\x1a`$dk\x83', 1, -87, 3, False),
(b'Channel 8', b'\xde\xec^\xe1#w', 1, -91, 3, False),
(b'Baptistus', b'\xd8\xec^\xe1#w', 1, -91, 7, False),
(b'Proximus-Home-596457', b'\xf4\x05\x95\xf9A\xf1', 1, -93, 3, False),
(b'Proximus-Home-596457', b'\xcc\x00\xf1j}\x94', 1, -93, 3, False),
(b'BASE-9104320', b'4,\xc4\xe7\x01\xb7', 1, -94, 3, False),
]
# Save several networks
WifiService.access_points = {
'Channel 8': {'password': 'pass1'},
'Baptistus': {'password': 'pass2'},
'telenet-BD74DC9': {'password': 'pass3'},
'Galaxy S10+64bf': {'password': 'pass4'},
}
# Track attempts and fail first to see ordering
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
# Succeed on second attempt
if len(connection_attempts) >= 2:
mock_wlan._connected = True
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertTrue(result)
# Expected order: Channel 8 (-47), Baptistus (-48), telenet (-70), Galaxy (-83)
self.assertEqual(connection_attempts[0], 'Channel 8')
self.assertEqual(connection_attempts[1], 'Baptistus')
self.assertEqual(len(connection_attempts), 2)
def test_sorting_preserves_network_data_integrity(self):
"""Test that sorting doesn't corrupt or lose network data."""
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
# Networks with various attributes
mock_wlan._scan_results = [
(b'Net3', b'\xaa\xaa\xaa\xaa\xaa\xaa', 11, -90, 3, False),
(b'Net1', b'\xbb\xbb\xbb\xbb\xbb\xbb', 1, -40, 7, True), # Hidden
(b'Net2', b'\xcc\xcc\xcc\xcc\xcc\xcc', 6, -60, 2, False),
]
WifiService.access_points = {
'Net1': {'password': 'p1'},
'Net2': {'password': 'p2'},
'Net3': {'password': 'p3'}
}
# Track attempts to verify all are tried
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
# Never succeed, try all
pass
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertFalse(result) # No connection succeeded
# Verify all 3 were attempted in RSSI order
self.assertEqual(len(connection_attempts), 3)
self.assertEqual(connection_attempts[0], 'Net1') # RSSI -40
self.assertEqual(connection_attempts[1], 'Net2') # RSSI -60
self.assertEqual(connection_attempts[2], 'Net3') # RSSI -90
def test_no_saved_networks_in_scan(self):
"""Test behavior when scan finds no saved networks."""
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
mock_wlan._scan_results = [
(b'UnknownNet1', b'\xaa\xbb\xcc\xdd\xee\xff', 1, -50, 3, False),
(b'UnknownNet2', b'\x11\x22\x33\x44\x55\x66', 6, -60, 3, False),
]
WifiService.access_points = {
'SavedNetwork': {'password': 'pass123'}
}
connection_attempts = []
def mock_connect(ssid, password):
connection_attempts.append(ssid)
mock_wlan.connect = mock_connect
result = WifiService.connect(network_module=mock_network)
self.assertFalse(result)
# No attempts should be made
self.assertEqual(len(connection_attempts), 0)
def test_rssi_logging_shows_signal_strength(self):
"""Test that RSSI value is logged during scan (for debugging)."""
# This is more of a documentation test to verify the log format
mock_network = MockNetwork(connected=False)
mock_wlan = mock_network.WLAN(mock_network.STA_IF)
mock_wlan._scan_results = [
(b'TestNet', b'\xaa\xbb\xcc\xdd\xee\xff', 1, -55, 3, False),
]
WifiService.access_points = {
'TestNet': {'password': 'pass'}
}
# The connect method now logs "Found network 'TestNet' (RSSI: -55 dBm)"
# This test just verifies it doesn't crash
result = WifiService.connect(network_module=mock_network)
# Since mock doesn't actually connect, this will likely be False
# but the important part is the code runs without error