From c77639ef5462fac7e7690fd39c86d4d8df57937a Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Wed, 19 Feb 2020 18:23:49 +0900
Subject: [PATCH] Minimal support for IPv6 upstreams in IpServer tests.

This makes the IpServer tests a bit more realistic. It is needed
by an upcoming change that adds new functionality, and is in its
own commit because it modifies the behaviour of all the existing
tests.

Test: atest TetheringTests
Change-Id: I8c3267bea983d1453c010b7b6b85548b9481a153
---
 .../unit/src/android/net/ip/IpServerTest.java      | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/packages/Tethering/tests/unit/src/android/net/ip/IpServerTest.java b/packages/Tethering/tests/unit/src/android/net/ip/IpServerTest.java
index acedfab3b7abd..65041955975fc 100644
--- a/packages/Tethering/tests/unit/src/android/net/ip/IpServerTest.java
+++ b/packages/Tethering/tests/unit/src/android/net/ip/IpServerTest.java
@@ -158,7 +158,9 @@ public class IpServerTest {
         initStateMachine(interfaceType, usingLegacyDhcp);
         dispatchCommand(IpServer.CMD_TETHER_REQUESTED, STATE_TETHERED);
         if (upstreamIface != null) {
-            dispatchTetherConnectionChanged(upstreamIface);
+            LinkProperties lp = new LinkProperties();
+            lp.setInterfaceName(upstreamIface);
+            dispatchTetherConnectionChanged(upstreamIface, lp);
         }
         reset(mNetd, mCallback);
     }
@@ -508,13 +510,21 @@ public class IpServerTest {
      *
      * @see #dispatchCommand(int)
      * @param upstreamIface String name of upstream interface (or null)
+     * @param v6lp IPv6 LinkProperties of the upstream interface, or null for an IPv4-only upstream.
      */
-    private void dispatchTetherConnectionChanged(String upstreamIface) {
+    private void dispatchTetherConnectionChanged(String upstreamIface, LinkProperties v6lp) {
         mIpServer.sendMessage(IpServer.CMD_TETHER_CONNECTION_CHANGED,
                 new InterfaceSet(upstreamIface));
+        if (v6lp != null) {
+            mIpServer.sendMessage(IpServer.CMD_IPV6_TETHER_UPDATE, v6lp);
+        }
         mLooper.dispatchAll();
     }
 
+    private void dispatchTetherConnectionChanged(String upstreamIface) {
+        dispatchTetherConnectionChanged(upstreamIface, null);
+    }
+
     private void assertIPv4AddressAndDirectlyConnectedRoute(LinkProperties lp) {
         // Find the first IPv4 LinkAddress.
         LinkAddress addr4 = null;