Fix flaky test: testDataMigration_differentFromFallback
Test main thread mocked settings object but use that on the handler
thread as well, which is not thread-safe.
Create a real object instead of mocking it instead.
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.net.NetworkStatsServiceTest#testDataMigration_differentFromFallback \
--rerun-until-failure 500
Fix: 289705810
Change-Id: Ibfb722818467fdf2b69a4b8fa87b4ac04a713573
diff --git a/service-t/src/com/android/server/net/NetworkStatsService.java b/service-t/src/com/android/server/net/NetworkStatsService.java
index 3f4113a..c46eada 100644
--- a/service-t/src/com/android/server/net/NetworkStatsService.java
+++ b/service-t/src/com/android/server/net/NetworkStatsService.java
@@ -63,6 +63,7 @@
import static android.text.format.DateUtils.MINUTE_IN_MILLIS;
import static android.text.format.DateUtils.SECOND_IN_MILLIS;
+import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;
import static com.android.net.module.util.NetworkCapabilitiesUtils.getDisplayTransport;
import static com.android.net.module.util.NetworkStatsUtils.LIMIT_GLOBAL_ALERT;
@@ -3248,7 +3249,8 @@
* Default external settings that read from
* {@link android.provider.Settings.Global}.
*/
- private static class DefaultNetworkStatsSettings implements NetworkStatsSettings {
+ @VisibleForTesting(visibility = PRIVATE)
+ static class DefaultNetworkStatsSettings implements NetworkStatsSettings {
DefaultNetworkStatsSettings() {}
@Override
diff --git a/tests/unit/java/com/android/server/net/NetworkStatsServiceTest.java b/tests/unit/java/com/android/server/net/NetworkStatsServiceTest.java
index 6292d45..9453617 100644
--- a/tests/unit/java/com/android/server/net/NetworkStatsServiceTest.java
+++ b/tests/unit/java/com/android/server/net/NetworkStatsServiceTest.java
@@ -79,7 +79,6 @@
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyBoolean;
import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.doReturn;
@@ -240,7 +239,9 @@
private @Mock INetd mNetd;
private @Mock TetheringManager mTetheringManager;
private @Mock NetworkStatsFactory mStatsFactory;
- private @Mock NetworkStatsSettings mSettings;
+ @NonNull
+ private final TestNetworkStatsSettings mSettings =
+ new TestNetworkStatsSettings(HOUR_IN_MILLIS, WEEK_IN_MILLIS);
private @Mock IBinder mUsageCallbackBinder;
private TestableUsageCallback mUsageCallback;
private @Mock AlarmManager mAlarmManager;
@@ -533,7 +534,6 @@
mStatsDir = null;
mNetd = null;
- mSettings = null;
mSession.close();
mService = null;
@@ -1765,7 +1765,7 @@
}
private void setCombineSubtypeEnabled(boolean enable) {
- doReturn(enable).when(mSettings).getCombineSubtypeEnabled();
+ mSettings.setCombineSubtypeEnabled(enable);
mHandler.post(() -> mContentObserver.onChange(false, Settings.Global
.getUriFor(Settings.Global.NETSTATS_COMBINE_SUBTYPE_ENABLED)));
waitForIdle();
@@ -2289,21 +2289,80 @@
mockSettings(HOUR_IN_MILLIS, WEEK_IN_MILLIS);
}
- private void mockSettings(long bucketDuration, long deleteAge) throws Exception {
- doReturn(HOUR_IN_MILLIS).when(mSettings).getPollInterval();
- doReturn(0L).when(mSettings).getPollDelay();
- doReturn(true).when(mSettings).getSampleEnabled();
- doReturn(false).when(mSettings).getCombineSubtypeEnabled();
+ private void mockSettings(long bucketDuration, long deleteAge) {
+ mSettings.setConfig(new Config(bucketDuration, deleteAge, deleteAge));
+ }
- final Config config = new Config(bucketDuration, deleteAge, deleteAge);
- doReturn(config).when(mSettings).getXtConfig();
- doReturn(config).when(mSettings).getUidConfig();
- doReturn(config).when(mSettings).getUidTagConfig();
+ // Note that this object will be accessed from test main thread and service handler thread.
+ // Thus, it has to be thread safe in order to prevent from flakiness.
+ private static class TestNetworkStatsSettings
+ extends NetworkStatsService.DefaultNetworkStatsSettings {
- doReturn(MB_IN_BYTES).when(mSettings).getGlobalAlertBytes(anyLong());
- doReturn(MB_IN_BYTES).when(mSettings).getXtPersistBytes(anyLong());
- doReturn(MB_IN_BYTES).when(mSettings).getUidPersistBytes(anyLong());
- doReturn(MB_IN_BYTES).when(mSettings).getUidTagPersistBytes(anyLong());
+ @NonNull
+ private volatile Config mConfig;
+ private final AtomicBoolean mCombineSubtypeEnabled = new AtomicBoolean();
+
+ TestNetworkStatsSettings(long bucketDuration, long deleteAge) {
+ mConfig = new Config(bucketDuration, deleteAge, deleteAge);
+ }
+
+ void setConfig(@NonNull Config config) {
+ mConfig = config;
+ }
+
+ @Override
+ public long getPollDelay() {
+ return 0L;
+ }
+
+ @Override
+ public long getGlobalAlertBytes(long def) {
+ return MB_IN_BYTES;
+ }
+
+ @Override
+ public Config getXtConfig() {
+ return mConfig;
+ }
+
+ @Override
+ public Config getUidConfig() {
+ return mConfig;
+ }
+
+ @Override
+ public Config getUidTagConfig() {
+ return mConfig;
+ }
+
+ @Override
+ public long getXtPersistBytes(long def) {
+ return MB_IN_BYTES;
+ }
+
+ @Override
+ public long getUidPersistBytes(long def) {
+ return MB_IN_BYTES;
+ }
+
+ @Override
+ public long getUidTagPersistBytes(long def) {
+ return MB_IN_BYTES;
+ }
+
+ @Override
+ public boolean getCombineSubtypeEnabled() {
+ return mCombineSubtypeEnabled.get();
+ }
+
+ public void setCombineSubtypeEnabled(boolean enable) {
+ mCombineSubtypeEnabled.set(enable);
+ }
+
+ @Override
+ public boolean getAugmentEnabled() {
+ return false;
+ }
}
private void assertStatsFilesExist(boolean exist) {