tests: Make ap_acs_40mhz more robust
Explicitly clear cached scan results on the AP interface before starting
ACS. This avoids issues where conflicting BSS entries from previously
executed test cases could affect channel selection.
Signed-off-by: Jouni Malinen <j@w1.fi>
diff --git a/tests/hwsim/test_ap_acs.py b/tests/hwsim/test_ap_acs.py
index 07b567d..a7dfd06 100644
--- a/tests/hwsim/test_ap_acs.py
+++ b/tests/hwsim/test_ap_acs.py
@@ -10,6 +10,7 @@
import time
import hostapd
+from test_ap_ht import clear_scan_cache
def force_prev_ap_on_24g(ap):
# For now, make sure the last operating channel was on 2.4 GHz band to get
@@ -92,6 +93,7 @@
def test_ap_acs_40mhz(dev, apdev):
"""Automatic channel selection for 40 MHz channel"""
+ clear_scan_cache(apdev[0]['ifname'])
force_prev_ap_on_24g(apdev[0])
params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
params['channel'] = '0'
