Test conflict notification work when using cached address
This test catch the regression introduced in r.android.com/1432958.
Bug: 1432958
Test: atest TetheringTest
Change-Id: Id0c1afb5563954ffee1f598a3a5de6a245d77a0e
Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1459889
Change-Id: Ie80d4d5d535d70df493cad0a80166d779bc6ab77
Merged-In: Id0c1afb5563954ffee1f598a3a5de6a245d77a0e
(cherry picked from commit c46006da456c22b780688919268a8c4598662533)
diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/PrivateAddressCoordinatorTest.java b/Tethering/tests/unit/src/com/android/networkstack/tethering/PrivateAddressCoordinatorTest.java
index 86e6f11..da13e34 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/PrivateAddressCoordinatorTest.java
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/PrivateAddressCoordinatorTest.java
@@ -194,17 +194,16 @@
@Test
public void testRequestLastDownstreamAddress() throws Exception {
- final int fakeHotspotSubAddr = 0x2b05;
- final IpPrefix predefinedPrefix = new IpPrefix("192.168.43.0/24");
+ final int fakeHotspotSubAddr = 0x2b05; // 43.5
when(mPrivateAddressCoordinator.getRandomInt()).thenReturn(fakeHotspotSubAddr);
final LinkAddress hotspotAddress = mPrivateAddressCoordinator.requestDownstreamAddress(
mHotspotIpServer, true /* useLastAddress */);
- assertEquals("Wrong wifi prefix: ", predefinedPrefix, asIpPrefix(hotspotAddress));
+ assertEquals("Wrong wifi prefix: ", new LinkAddress("192.168.43.5/24"), hotspotAddress);
when(mHotspotIpServer.getAddress()).thenReturn(hotspotAddress);
final LinkAddress usbAddress = mPrivateAddressCoordinator.requestDownstreamAddress(
mUsbIpServer, true /* useLastAddress */);
- assertNotEquals(predefinedPrefix, asIpPrefix(usbAddress));
+ assertEquals("Wrong wifi prefix: ", new LinkAddress("192.168.45.5/24"), usbAddress);
mPrivateAddressCoordinator.releaseDownstream(mHotspotIpServer);
mPrivateAddressCoordinator.releaseDownstream(mUsbIpServer);
@@ -218,6 +217,18 @@
final LinkAddress newUsbAddress = mPrivateAddressCoordinator.requestDownstreamAddress(
mUsbIpServer, true /* useLastAddress */);
assertEquals(usbAddress, newUsbAddress);
+
+ // BUG: the code should detect a conflict, but it doesn't.
+ // Regression introduced in r.android.com/168169687.
+ // Ensure conflict notification works when using cached address.
+ when(mHotspotIpServer.getAddress()).thenReturn(newHotspotAddress);
+ when(mUsbIpServer.getAddress()).thenReturn(usbAddress);
+ final UpstreamNetworkState wifiUpstream = buildUpstreamNetworkState(mWifiNetwork,
+ new LinkAddress("192.168.88.23/16"), null,
+ makeNetworkCapabilities(TRANSPORT_WIFI));
+ mPrivateAddressCoordinator.updateUpstreamPrefix(wifiUpstream);
+ verify(mHotspotIpServer, never()).sendMessage(IpServer.CMD_NOTIFY_PREFIX_CONFLICT);
+ verify(mUsbIpServer, never()).sendMessage(IpServer.CMD_NOTIFY_PREFIX_CONFLICT);
}
private UpstreamNetworkState buildUpstreamNetworkState(final Network network,