[SP04] add unit test for NetworkStatsProvider
am: 9ff7b4ed81
Change-Id: Icd440ff9086604cb0baaa4cb3e8e458dcda3bb97
diff --git a/services/core/java/com/android/server/net/NetworkStatsService.java b/services/core/java/com/android/server/net/NetworkStatsService.java
index 29a3974..fc39a25 100644
--- a/services/core/java/com/android/server/net/NetworkStatsService.java
+++ b/services/core/java/com/android/server/net/NetworkStatsService.java
@@ -182,7 +182,7 @@
* This avoids firing the global alert too often on devices with high transfer speeds and
* high quota.
*/
- private static final int PERFORM_POLL_DELAY_MS = 1000;
+ private static final int DEFAULT_PERFORM_POLL_DELAY_MS = 1000;
private static final String TAG_NETSTATS_ERROR = "netstats_error";
@@ -226,6 +226,7 @@
*/
public interface NetworkStatsSettings {
public long getPollInterval();
+ public long getPollDelay();
public boolean getSampleEnabled();
public boolean getAugmentEnabled();
@@ -1116,7 +1117,7 @@
// such a call pending; UID stats are handled during normal polling interval.
if (!mHandler.hasMessages(MSG_PERFORM_POLL_REGISTER_ALERT)) {
mHandler.sendEmptyMessageDelayed(MSG_PERFORM_POLL_REGISTER_ALERT,
- PERFORM_POLL_DELAY_MS);
+ mSettings.getPollDelay());
}
}
}
@@ -1995,6 +1996,10 @@
return getGlobalLong(NETSTATS_POLL_INTERVAL, 30 * MINUTE_IN_MILLIS);
}
@Override
+ public long getPollDelay() {
+ return DEFAULT_PERFORM_POLL_DELAY_MS;
+ }
+ @Override
public long getGlobalAlertBytes(long def) {
return getGlobalLong(NETSTATS_GLOBAL_ALERT_BYTES, def);
}
diff --git a/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java b/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
index 6de068e..a9e0b9a 100644
--- a/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
+++ b/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
@@ -80,6 +80,7 @@
import android.net.NetworkStats;
import android.net.NetworkStatsHistory;
import android.net.NetworkTemplate;
+import android.net.netstats.provider.INetworkStatsProviderCallback;
import android.os.ConditionVariable;
import android.os.Handler;
import android.os.HandlerThread;
@@ -102,6 +103,7 @@
import com.android.server.net.NetworkStatsService.NetworkStatsSettings;
import com.android.server.net.NetworkStatsService.NetworkStatsSettings.Config;
import com.android.testutils.HandlerUtilsKt;
+import com.android.testutils.TestableNetworkStatsProvider;
import libcore.io.IoUtils;
@@ -1001,6 +1003,88 @@
mService.unregisterUsageRequest(unknownRequest);
}
+ @Test
+ public void testStatsProviderUpdateStats() throws Exception {
+ // Pretend that network comes online.
+ expectDefaultSettings();
+ final NetworkState[] states = new NetworkState[]{buildWifiState(true /* isMetered */)};
+ expectNetworkStatsSummary(buildEmptyStats());
+ expectNetworkStatsUidDetail(buildEmptyStats());
+
+ // Register custom provider and retrieve callback.
+ final TestableNetworkStatsProvider provider = new TestableNetworkStatsProvider();
+ final INetworkStatsProviderCallback cb =
+ mService.registerNetworkStatsProvider("TEST", provider);
+ assertNotNull(cb);
+
+ mService.forceUpdateIfaces(NETWORKS_WIFI, states, getActiveIface(states), new VpnInfo[0]);
+
+ // Verifies that one requestStatsUpdate will be called during iface update.
+ provider.expectStatsUpdate(0 /* unused */);
+
+ // Create some initial traffic and report to the service.
+ incrementCurrentTime(HOUR_IN_MILLIS);
+ final NetworkStats expectedStats = new NetworkStats(0L, 1)
+ .addValues(new NetworkStats.Entry(TEST_IFACE, UID_RED, SET_DEFAULT,
+ TAG_NONE, METERED_YES, ROAMING_NO, DEFAULT_NETWORK_YES,
+ 128L, 2L, 128L, 2L, 1L))
+ .addValues(new NetworkStats.Entry(TEST_IFACE, UID_RED, SET_DEFAULT,
+ 0xF00D, METERED_YES, ROAMING_NO, DEFAULT_NETWORK_YES,
+ 64L, 1L, 64L, 1L, 1L));
+ cb.onStatsUpdated(0 /* unused */, expectedStats, expectedStats);
+
+ // Make another empty mutable stats object. This is necessary since the new NetworkStats
+ // object will be used to compare with the old one in NetworkStatsRecoder, two of them
+ // cannot be the same object.
+ expectNetworkStatsUidDetail(buildEmptyStats());
+
+ forcePollAndWaitForIdle();
+
+ // Verifies that one requestStatsUpdate and setAlert will be called during polling.
+ provider.expectStatsUpdate(0 /* unused */);
+ provider.expectSetAlert(MB_IN_BYTES);
+
+ // Verifies that service recorded history, does not verify uid tag part.
+ assertUidTotal(sTemplateWifi, UID_RED, 128L, 2L, 128L, 2L, 1);
+
+ // Verifies that onStatsUpdated updates the stats accordingly.
+ final NetworkStats stats = mSession.getSummaryForAllUid(
+ sTemplateWifi, Long.MIN_VALUE, Long.MAX_VALUE, true);
+ assertEquals(2, stats.size());
+ assertValues(stats, IFACE_ALL, UID_RED, SET_DEFAULT, TAG_NONE, METERED_YES, ROAMING_NO,
+ DEFAULT_NETWORK_YES, 128L, 2L, 128L, 2L, 1L);
+ assertValues(stats, IFACE_ALL, UID_RED, SET_DEFAULT, 0xF00D, METERED_YES, ROAMING_NO,
+ DEFAULT_NETWORK_YES, 64L, 1L, 64L, 1L, 1L);
+
+ // Verifies that unregister the callback will remove the provider from service.
+ cb.unregister();
+ forcePollAndWaitForIdle();
+ provider.assertNoCallback();
+ }
+
+ @Test
+ public void testStatsProviderSetAlert() throws Exception {
+ // Pretend that network comes online.
+ expectDefaultSettings();
+ NetworkState[] states = new NetworkState[]{buildWifiState(true /* isMetered */)};
+ mService.forceUpdateIfaces(NETWORKS_WIFI, states, getActiveIface(states), new VpnInfo[0]);
+
+ // Register custom provider and retrieve callback.
+ final TestableNetworkStatsProvider provider = new TestableNetworkStatsProvider();
+ final INetworkStatsProviderCallback cb =
+ mService.registerNetworkStatsProvider("TEST", provider);
+ assertNotNull(cb);
+
+ // Simulates alert quota of the provider has been reached.
+ cb.onAlertReached();
+ HandlerUtilsKt.waitForIdle(mHandler, WAIT_TIMEOUT);
+
+ // Verifies that polling is triggered by alert reached.
+ provider.expectStatsUpdate(0 /* unused */);
+ // Verifies that global alert will be re-armed.
+ provider.expectSetAlert(MB_IN_BYTES);
+ }
+
private static File getBaseDir(File statsDir) {
File baseDir = new File(statsDir, "netstats");
baseDir.mkdirs();
@@ -1102,6 +1186,7 @@
private void expectSettings(long persistBytes, long bucketDuration, long deleteAge)
throws Exception {
when(mSettings.getPollInterval()).thenReturn(HOUR_IN_MILLIS);
+ when(mSettings.getPollDelay()).thenReturn(0L);
when(mSettings.getSampleEnabled()).thenReturn(true);
final Config config = new Config(bucketDuration, deleteAge, deleteAge);