[PATCH 6/6] tests: flush scan results before checking alloc failure

When run after other tests, It was likely that the target
bss was already present in scan_fail, so the
scan_for_bss() wouldn't trip the allocation failure in
wpa_bss_add(). Flush the scan results before the scan to
ensure wpa_bss_add() is called and consistently pass
scan_fail.

Signed-off-by: Thomas Pedersen <[email protected]>
---
 tests/hwsim/test_scan.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/hwsim/test_scan.py b/tests/hwsim/test_scan.py
index 9bf7a0fd4ebd..aac07eea6fa6 100644
--- a/tests/hwsim/test_scan.py
+++ b/tests/hwsim/test_scan.py
@@ -1166,6 +1166,7 @@ def test_scan_fail(dev, apdev):
 
     hapd = hostapd.add_ap(apdev[0], {"ssid": "open"})
     with alloc_fail(dev[0], 1, "wpa_bss_add"):
+        dev[0].flush_scan_cache()
         dev[0].scan_for_bss(apdev[0]['bssid'], freq="2412")
 
 def test_scan_fail_type_only(dev, apdev):
-- 
2.20.1