Merge "Add VcnUtils to easily get WifiInfo and subId from NetworkCapabilities" into main am: 13ba8acf56 am: c595ed6ac9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3286259

Change-Id: I8e3302f83d9f1b2144dfb1700b165d1e5c053f55
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

2 files changed, 159 insertions, 0 deletions

diff --git a/tests/vcn/java/android/net/vcn/VcnTransportInfoTest.java b/tests/vcn/java/android/net/vcn/VcnTransportInfoTest.java
index 81814b67f5ee..7bc9970629a6 100644
--- a/tests/vcn/java/android/net/vcn/VcnTransportInfoTest.java
+++ b/tests/vcn/java/android/net/vcn/VcnTransportInfoTest.java
@@ -25,6 +25,7 @@ import static android.telephony.SubscriptionManager.INVALID_SUBSCRIPTION_ID;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.fail;
 
 import android.net.NetworkCapabilities;
 import android.net.wifi.WifiConfiguration;
@@ -39,6 +40,7 @@ public class VcnTransportInfoTest {
     private static final int SUB_ID = 1;
     private static final int NETWORK_ID = 5;
     private static final int MIN_UDP_PORT_4500_NAT_TIMEOUT = 120;
+    private static final int MIN_UDP_PORT_4500_NAT_TIMEOUT_INVALID = 119;
     private static final WifiInfo WIFI_INFO =
             new WifiInfo.Builder().setNetworkId(NETWORK_ID).build();
 
@@ -48,6 +50,27 @@ public class VcnTransportInfoTest {
             new VcnTransportInfo(WIFI_INFO, MIN_UDP_PORT_4500_NAT_TIMEOUT);
 
     @Test
+    public void testBuilder() {
+        final VcnTransportInfo transportInfo =
+                new VcnTransportInfo.Builder()
+                        .setMinUdpPort4500NatTimeoutSeconds(MIN_UDP_PORT_4500_NAT_TIMEOUT)
+                        .build();
+
+        assertEquals(
+                MIN_UDP_PORT_4500_NAT_TIMEOUT, transportInfo.getMinUdpPort4500NatTimeoutSeconds());
+    }
+
+    @Test
+    public void testBuilder_withInvalidNatTimeout() {
+        try {
+            new VcnTransportInfo.Builder()
+                    .setMinUdpPort4500NatTimeoutSeconds(MIN_UDP_PORT_4500_NAT_TIMEOUT_INVALID);
+            fail("Expected to fail due to invalid NAT timeout");
+        } catch (Exception expected) {
+        }
+    }
+
+    @Test
     public void testGetWifiInfo() {
         assertEquals(WIFI_INFO, WIFI_UNDERLYING_INFO.getWifiInfo());
 
diff --git a/tests/vcn/java/android/net/vcn/VcnUtilsTest.java b/tests/vcn/java/android/net/vcn/VcnUtilsTest.java
new file mode 100644
index 000000000000..3ce6c8f9386d
--- /dev/null
+++ b/tests/vcn/java/android/net/vcn/VcnUtilsTest.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.vcn;
+
+import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
+import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
+import static android.telephony.SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import android.net.ConnectivityManager;
+import android.net.Network;
+import android.net.NetworkCapabilities;
+import android.net.TelephonyNetworkSpecifier;
+import android.net.wifi.WifiInfo;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+
+public class VcnUtilsTest {
+    private static final int SUB_ID = 1;
+
+    private static final WifiInfo WIFI_INFO = new WifiInfo.Builder().build();
+    private static final TelephonyNetworkSpecifier TEL_NETWORK_SPECIFIER =
+            new TelephonyNetworkSpecifier.Builder().setSubscriptionId(SUB_ID).build();
+    private static final VcnTransportInfo VCN_TRANSPORT_INFO =
+            new VcnTransportInfo.Builder().build();
+
+    private ConnectivityManager mMockConnectivityManager;
+    private Network mMockWifiNetwork;
+    private Network mMockCellNetwork;
+
+    private NetworkCapabilities mVcnCapsWithUnderlyingWifi;
+    private NetworkCapabilities mVcnCapsWithUnderlyingCell;
+
+    @Before
+    public void setUp() {
+        mMockConnectivityManager = mock(ConnectivityManager.class);
+
+        mMockWifiNetwork = mock(Network.class);
+        mVcnCapsWithUnderlyingWifi = newVcnCaps(VCN_TRANSPORT_INFO, mMockWifiNetwork);
+        final NetworkCapabilities wifiCaps =
+                new NetworkCapabilities.Builder()
+                        .addTransportType(TRANSPORT_WIFI)
+                        .setTransportInfo(WIFI_INFO)
+                        .build();
+        when(mMockConnectivityManager.getNetworkCapabilities(mMockWifiNetwork))
+                .thenReturn(wifiCaps);
+
+        mMockCellNetwork = mock(Network.class);
+        mVcnCapsWithUnderlyingCell = newVcnCaps(VCN_TRANSPORT_INFO, mMockCellNetwork);
+        final NetworkCapabilities cellCaps =
+                new NetworkCapabilities.Builder()
+                        .addTransportType(TRANSPORT_CELLULAR)
+                        .setNetworkSpecifier(TEL_NETWORK_SPECIFIER)
+                        .build();
+        when(mMockConnectivityManager.getNetworkCapabilities(mMockCellNetwork))
+                .thenReturn(cellCaps);
+    }
+
+    private static NetworkCapabilities newVcnCaps(
+            VcnTransportInfo vcnTransportInfo, Network underlyingNetwork) {
+        return new NetworkCapabilities.Builder()
+                .setTransportInfo(vcnTransportInfo)
+                .setUnderlyingNetworks(Collections.singletonList(underlyingNetwork))
+                .build();
+    }
+
+    @Test
+    public void getWifiInfoFromVcnCaps() {
+        assertEquals(
+                WIFI_INFO,
+                VcnUtils.getWifiInfoFromVcnCaps(
+                        mMockConnectivityManager, mVcnCapsWithUnderlyingWifi));
+    }
+
+    @Test
+    public void getWifiInfoFromVcnCaps_onVcnWithUnderlyingCell() {
+        assertNull(
+                VcnUtils.getWifiInfoFromVcnCaps(
+                        mMockConnectivityManager, mVcnCapsWithUnderlyingCell));
+    }
+
+    @Test
+    public void getSubIdFromVcnCaps() {
+        assertEquals(
+                SUB_ID,
+                VcnUtils.getSubIdFromVcnCaps(mMockConnectivityManager, mVcnCapsWithUnderlyingCell));
+    }
+
+    @Test
+    public void getSubIdFromVcnCaps_onVcnWithUnderlyingWifi() {
+        assertEquals(
+                INVALID_SUBSCRIPTION_ID,
+                VcnUtils.getSubIdFromVcnCaps(mMockConnectivityManager, mVcnCapsWithUnderlyingWifi));
+    }
+
+    @Test
+    public void getSubIdFromVcnCaps_onNonVcnNetwork() {
+        assertEquals(
+                INVALID_SUBSCRIPTION_ID,
+                VcnUtils.getSubIdFromVcnCaps(
+                        mMockConnectivityManager, new NetworkCapabilities.Builder().build()));
+    }
+
+    @Test
+    public void getSubIdFromVcnCaps_withMultipleUnderlyingNetworks() {
+        final NetworkCapabilities vcnCaps =
+                new NetworkCapabilities.Builder(mVcnCapsWithUnderlyingCell)
+                        .setUnderlyingNetworks(
+                                Arrays.asList(
+                                        new Network[] {mMockCellNetwork, mock(Network.class)}))
+                        .build();
+        assertEquals(SUB_ID, VcnUtils.getSubIdFromVcnCaps(mMockConnectivityManager, vcnCaps));
+    }
+}