Merge "Fix TetheringTest when run on B" into main
diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
index f27b379..f7a44f1 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
@@ -933,11 +933,18 @@
         // it creates a IpServer and sends out a broadcast indicating that the
         // interface is "available".
         if (emulateInterfaceStatusChanged) {
-            // There is 1 IpServer state change event: STATE_AVAILABLE
-            verify(mNotificationUpdater, times(1)).onDownstreamChanged(DOWNSTREAM_NONE);
-            verifyTetheringBroadcast(TEST_WLAN_IFNAME, EXTRA_AVAILABLE_TETHER);
-            verify(mWifiManager).updateInterfaceIpState(
-                    TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+            if (!SdkLevel.isAtLeastB()) {
+                // There is 1 IpServer state change event: STATE_AVAILABLE
+                verify(mNotificationUpdater, times(1)).onDownstreamChanged(DOWNSTREAM_NONE);
+                verifyTetheringBroadcast(TEST_WLAN_IFNAME, EXTRA_AVAILABLE_TETHER);
+                verify(mWifiManager).updateInterfaceIpState(
+                        TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+            } else {
+                // Starting in B, ignore the interfaceStatusChanged
+                verify(mNotificationUpdater, never()).onDownstreamChanged(DOWNSTREAM_NONE);
+                verify(mWifiManager, never()).updateInterfaceIpState(
+                        TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+            }
         }
         verifyNoMoreInteractions(mNetd);
         verifyNoMoreInteractions(mWifiManager);
@@ -1934,7 +1941,6 @@
         workingLocalOnlyHotspotEnrichedApBroadcast(false);
     }
 
-    // TODO: Test with and without interfaceStatusChanged().
     @Test
     public void failingWifiTetheringLegacyApBroadcast() throws Exception {
         initTetheringOnTestThread();
@@ -1953,12 +1959,20 @@
         // tethering mode is to be started.
         mTethering.interfaceStatusChanged(TEST_WLAN_IFNAME, true);
         sendWifiApStateChanged(WIFI_AP_STATE_ENABLED);
+        mLooper.dispatchAll();
 
-        // There is 1 IpServer state change event: STATE_AVAILABLE
-        verify(mNotificationUpdater, times(1)).onDownstreamChanged(DOWNSTREAM_NONE);
-        verifyTetheringBroadcast(TEST_WLAN_IFNAME, EXTRA_AVAILABLE_TETHER);
-        verify(mWifiManager).updateInterfaceIpState(
-                TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+        if (!SdkLevel.isAtLeastB()) {
+            // There is 1 IpServer state change event: STATE_AVAILABLE from interfaceStatusChanged
+            verify(mNotificationUpdater, times(1)).onDownstreamChanged(DOWNSTREAM_NONE);
+            verifyTetheringBroadcast(TEST_WLAN_IFNAME, EXTRA_AVAILABLE_TETHER);
+            verify(mWifiManager).updateInterfaceIpState(
+                    TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+        } else {
+            // Starting in B, ignore the interfaceStatusChanged
+            verify(mNotificationUpdater, never()).onDownstreamChanged(DOWNSTREAM_NONE);
+            verify(mWifiManager, never()).updateInterfaceIpState(
+                    TEST_WLAN_IFNAME, WifiManager.IFACE_IP_MODE_UNSPECIFIED);
+        }
         verifyNoMoreInteractions(mNetd);
         verifyNoMoreInteractions(mWifiManager);
     }
@@ -2361,14 +2375,19 @@
         UpstreamNetworkState upstreamState = buildMobileDualStackUpstreamState();
         initTetheringUpstream(upstreamState);
         when(mWifiManager.startTetheredHotspot(null)).thenReturn(true);
-        mTethering.interfaceStatusChanged(TEST_WLAN_IFNAME, true);
-        mLooper.dispatchAll();
-        tetherState = callback.pollTetherStatesChanged();
-        assertArrayEquals(tetherState.availableList, new TetheringInterface[] {wifiIface});
 
         mTethering.startTethering(createTetheringRequest(TETHERING_WIFI), TEST_CALLER_PKG,
                 null);
+        mTethering.interfaceStatusChanged(TEST_WLAN_IFNAME, true);
+        mLooper.dispatchAll();
+        if (SdkLevel.isAtLeastB()) {
+            // Starting in B, ignore the interfaceStatusChanged
+            callback.assertNoStateChangeCallback();
+        }
         sendWifiApStateChanged(WIFI_AP_STATE_ENABLED, TEST_WLAN_IFNAME, IFACE_IP_MODE_TETHERED);
+        mLooper.dispatchAll();
+        tetherState = callback.pollTetherStatesChanged();
+        assertArrayEquals(tetherState.availableList, new TetheringInterface[] {wifiIface});
         tetherState = callback.pollTetherStatesChanged();
         assertArrayEquals(tetherState.tetheredList, new TetheringInterface[] {wifiIface});
         callback.expectUpstreamChanged(upstreamState.network);
@@ -2459,19 +2478,25 @@
         UpstreamNetworkState upstreamState = buildMobileDualStackUpstreamState();
         initTetheringUpstream(upstreamState);
         when(mWifiManager.startTetheredHotspot(null)).thenReturn(true);
+
+        // Enable wifi tethering
+        mBinderCallingUid = TEST_CALLER_UID;
+        mTethering.startTethering(tetheringRequest, TEST_CALLER_PKG, null);
         mTethering.interfaceStatusChanged(TEST_WLAN_IFNAME, true);
         mLooper.dispatchAll();
+        if (SdkLevel.isAtLeastB()) {
+            // Starting in B, ignore the interfaceStatusChanged
+            callback.assertNoStateChangeCallback();
+        }
+        sendWifiApStateChanged(WIFI_AP_STATE_ENABLED, TEST_WLAN_IFNAME, IFACE_IP_MODE_TETHERED);
+        mLooper.dispatchAll();
+        // Verify we see  Available -> Tethered states
         assertArrayEquals(new TetheringInterface[] {wifiIfaceWithoutConfig},
                 callback.pollTetherStatesChanged().availableList);
         assertArrayEquals(new TetheringInterface[] {wifiIfaceWithoutConfig},
                 differentCallback.pollTetherStatesChanged().availableList);
         assertArrayEquals(new TetheringInterface[] {wifiIfaceWithoutConfig},
                 settingsCallback.pollTetherStatesChanged().availableList);
-
-        // Enable wifi tethering
-        mBinderCallingUid = TEST_CALLER_UID;
-        mTethering.startTethering(tetheringRequest, TEST_CALLER_PKG, null);
-        sendWifiApStateChanged(WIFI_AP_STATE_ENABLED, TEST_WLAN_IFNAME, IFACE_IP_MODE_TETHERED);
         assertArrayEquals(new TetheringInterface[] {wifiIfaceWithConfig},
                 callback.pollTetherStatesChanged().tetheredList);
         assertArrayEquals(new TetheringInterface[] {wifiIfaceWithoutConfig},