Test for not logging meaningless caps changes
Test: this
Change-Id: Ife6500daae58b7f85a7f4c76cd89ce91def5e78c
diff --git a/tests/unit/java/com/android/server/connectivity/VpnTest.java b/tests/unit/java/com/android/server/connectivity/VpnTest.java
index 395e2bb..f7b9fcf 100644
--- a/tests/unit/java/com/android/server/connectivity/VpnTest.java
+++ b/tests/unit/java/com/android/server/connectivity/VpnTest.java
@@ -25,6 +25,9 @@
import static android.net.ConnectivityManager.NetworkCallback;
import static android.net.INetd.IF_STATE_DOWN;
import static android.net.INetd.IF_STATE_UP;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_TEMPORARILY_NOT_METERED;
import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
import static android.net.RouteInfo.RTN_UNREACHABLE;
@@ -173,6 +176,7 @@
import com.android.internal.net.VpnConfig;
import com.android.internal.net.VpnProfile;
import com.android.internal.util.HexDump;
+import com.android.internal.util.IndentingPrintWriter;
import com.android.server.DeviceIdleInternal;
import com.android.server.IpSecService;
import com.android.server.VpnTestBase;
@@ -196,6 +200,7 @@
import java.io.FileDescriptor;
import java.io.FileWriter;
import java.io.IOException;
+import java.io.StringWriter;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
@@ -213,6 +218,8 @@
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
import java.util.stream.Stream;
/**
@@ -2608,6 +2615,81 @@
vpnSnapShot.vpn.mVpnRunner.exitVpnRunner();
}
+ private String getDump(@NonNull final Vpn vpn) {
+ final StringWriter sw = new StringWriter();
+ final IndentingPrintWriter writer = new IndentingPrintWriter(sw, "");
+ vpn.dump(writer);
+ writer.flush();
+ return sw.toString();
+ }
+
+ private int countMatches(@NonNull final Pattern regexp, @NonNull final String string) {
+ final Matcher m = regexp.matcher(string);
+ int i = 0;
+ while (m.find()) ++i;
+ return i;
+ }
+
+ @Test
+ public void testNCEventChanges() throws Exception {
+ final NetworkCapabilities.Builder ncBuilder = new NetworkCapabilities.Builder()
+ .addTransportType(TRANSPORT_CELLULAR)
+ .addCapability(NET_CAPABILITY_INTERNET)
+ .addCapability(NET_CAPABILITY_NOT_RESTRICTED)
+ .setLinkDownstreamBandwidthKbps(1000)
+ .setLinkUpstreamBandwidthKbps(500);
+
+ final Ikev2VpnProfile ikeProfile =
+ new Ikev2VpnProfile.Builder(TEST_VPN_SERVER, TEST_VPN_IDENTITY)
+ .setAuthPsk(TEST_VPN_PSK)
+ .setBypassable(true /* isBypassable */)
+ .setAutomaticNattKeepaliveTimerEnabled(true)
+ .setAutomaticIpVersionSelectionEnabled(true)
+ .build();
+
+ final PlatformVpnSnapshot vpnSnapShot =
+ verifySetupPlatformVpn(ikeProfile.toVpnProfile(),
+ createIkeConfig(createIkeConnectInfo(), true /* isMobikeEnabled */),
+ ncBuilder.build(), false /* mtuSupportsIpv6 */,
+ true /* areLongLivedTcpConnectionsExpensive */);
+
+ // Calls to onCapabilitiesChanged will be thrown to the executor for execution ; by
+ // default this will incur a 10ms delay before it's executed, messing with the timing
+ // of the log and having the checks for counts in equals() below flake.
+ mExecutor.executeDirect = true;
+
+ // First nc changed triggered by verifySetupPlatformVpn
+ final Pattern pattern = Pattern.compile("Cap changed from", Pattern.MULTILINE);
+ final String stage1 = getDump(vpnSnapShot.vpn);
+ assertEquals(1, countMatches(pattern, stage1));
+
+ vpnSnapShot.nwCb.onCapabilitiesChanged(TEST_NETWORK, ncBuilder.build());
+ final String stage2 = getDump(vpnSnapShot.vpn);
+ // Was the same caps, there should still be only 1 match
+ assertEquals(1, countMatches(pattern, stage2));
+
+ ncBuilder.setLinkDownstreamBandwidthKbps(1200)
+ .setLinkUpstreamBandwidthKbps(300);
+ vpnSnapShot.nwCb.onCapabilitiesChanged(TEST_NETWORK, ncBuilder.build());
+ final String stage3 = getDump(vpnSnapShot.vpn);
+ // Was not an important change, should not be logged, still only 1 match
+ assertEquals(1, countMatches(pattern, stage3));
+
+ ncBuilder.addCapability(NET_CAPABILITY_TEMPORARILY_NOT_METERED);
+ vpnSnapShot.nwCb.onCapabilitiesChanged(TEST_NETWORK, ncBuilder.build());
+ final String stage4 = getDump(vpnSnapShot.vpn);
+ // Change to caps is important, should cause a new match
+ assertEquals(2, countMatches(pattern, stage4));
+
+ ncBuilder.removeCapability(NET_CAPABILITY_TEMPORARILY_NOT_METERED);
+ ncBuilder.setLinkDownstreamBandwidthKbps(600);
+ vpnSnapShot.nwCb.onCapabilitiesChanged(TEST_NETWORK, ncBuilder.build());
+ final String stage5 = getDump(vpnSnapShot.vpn);
+ // Change to caps is important, should cause a new match even with the unimportant change
+ assertEquals(3, countMatches(pattern, stage5));
+ }
+ // TODO : beef up event logs tests
+
private void verifyHandlingNetworkLoss(PlatformVpnSnapshot vpnSnapShot) throws Exception {
// Forget the #sendLinkProperties during first setup.
reset(mMockNetworkAgent);