Add hourly period job to fetch battery usage data in Settings.

Bug: 253395332
Test: make RunSettingsRoboTests + manually
Change-Id: I342066a30fed202e5013b8c2554f36d991975c3e

AndroidManifest.xml

@@ -2983,6 +2983,26 @@
             </intent-filter>
         </receiver>
 
+        <receiver
+            android:name=".fuelgauge.batteryusage.BootBroadcastReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED"/>
+                <action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>
+                <action android:name="android.intent.action.MY_PACKAGE_UNSUSPENDED"/>
+                <action android:name="com.google.android.setupwizard.SETUP_WIZARD_FINISHED"/>
+                <action android:name="com.android.settings.battery.action.PERIODIC_JOB_RECHECK"/>
+            </intent-filter>
+        </receiver>
+
+        <receiver
+            android:name=".fuelgauge.batteryusage.PeriodicJobReceiver"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.android.settings.battery.action.PERIODIC_JOB_UPDATE"/>
+            </intent-filter>
+        </receiver>
+
         <activity
             android:name="Settings$BatterySaverSettingsActivity"
             android:label="@string/battery_saver"

src/com/android/settings/fuelgauge/batteryusage/BatteryUsageContentProvider.java

@@ -21,6 +21,7 @@ import android.content.ContentValues;
 import android.content.UriMatcher;
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.AsyncTask;
 import android.text.TextUtils;
 import android.util.Log;
 
@@ -144,7 +145,7 @@ public class BatteryUsageContentProvider extends ContentProvider {
         } catch (RuntimeException e) {
             Log.e(TAG, "query() from:" + uri + " error:" + e);
         }
-        // TODO: Invokes hourly job recheck.
+        AsyncTask.execute(() -> BootBroadcastReceiver.invokeJobRecheck(getContext()));
         Log.w(TAG, "query battery states in " + (mClock.millis() - timestamp) + "/ms");
         return cursor;
     }

src/com/android/settings/fuelgauge/batteryusage/BootBroadcastReceiver.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+
+import java.time.Duration;
+
+/** Receives broadcasts to start or stop the periodic fetching job. */
+public final class BootBroadcastReceiver extends BroadcastReceiver {
+    private static final String TAG = "BootBroadcastReceiver";
+    private static final long RESCHEDULE_FOR_BOOT_ACTION = Duration.ofSeconds(6).toMillis();
+
+    private final Handler mHandler = new Handler(Looper.getMainLooper());
+
+    public static final String ACTION_PERIODIC_JOB_RECHECK =
+            "com.android.settings.battery.action.PERIODIC_JOB_RECHECK";
+    public static final String ACTION_SETUP_WIZARD_FINISHED =
+            "com.google.android.setupwizard.SETUP_WIZARD_FINISHED";
+
+    /** Invokes periodic job rechecking process. */
+    public static void invokeJobRecheck(Context context) {
+        context = context.getApplicationContext();
+        final Intent intent = new Intent(ACTION_PERIODIC_JOB_RECHECK);
+        intent.setClass(context, BootBroadcastReceiver.class);
+        context.sendBroadcast(intent);
+    }
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final String action = intent == null ? "" : intent.getAction();
+        if (DatabaseUtils.isWorkProfile(context)) {
+            Log.w(TAG, "do not start job for work profile action=" + action);
+            return;
+        }
+
+        switch (action) {
+            case Intent.ACTION_BOOT_COMPLETED:
+            case Intent.ACTION_MY_PACKAGE_REPLACED:
+            case Intent.ACTION_MY_PACKAGE_UNSUSPENDED:
+            case ACTION_SETUP_WIZARD_FINISHED:
+            case ACTION_PERIODIC_JOB_RECHECK:
+                Log.d(TAG, "refresh periodic job from action=" + action);
+                refreshJobs(context);
+                break;
+            case Intent.ACTION_TIME_CHANGED:
+                Log.d(TAG, "refresh job and clear all data from action=" + action);
+                DatabaseUtils.clearAll(context);
+                PeriodicJobManager.getInstance(context).refreshJob();
+                break;
+            default:
+                Log.w(TAG, "receive unsupported action=" + action);
+        }
+
+        // Waits a while to recheck the scheduler to avoid AlarmManager is not ready.
+        if (Intent.ACTION_BOOT_COMPLETED.equals(action)) {
+            final Intent recheckIntent = new Intent(ACTION_PERIODIC_JOB_RECHECK);
+            recheckIntent.setClass(context, BootBroadcastReceiver.class);
+            mHandler.postDelayed(() -> context.sendBroadcast(recheckIntent),
+                    RESCHEDULE_FOR_BOOT_ACTION);
+        }
+    }
+
+    private static void refreshJobs(Context context) {
+        // Clears useless data from battery usage database if needed.
+        DatabaseUtils.clearExpiredDataIfNeeded(context);
+        PeriodicJobManager.getInstance(context).refreshJob();
+    }
+}

src/com/android/settings/fuelgauge/batteryusage/DatabaseUtils.java

@@ -57,7 +57,9 @@ public final class DatabaseUtils {
     /** Clear memory threshold for device booting phase. **/
     private static final long CLEAR_MEMORY_THRESHOLD_MS = Duration.ofMinutes(5).toMillis();
     private static final long CLEAR_MEMORY_DELAYED_MS = Duration.ofSeconds(2).toMillis();
-    private static final long DATA_RETENTION_INTERVAL_MS = Duration.ofDays(9).toMillis();
+
+    @VisibleForTesting
+    static final int DATA_RETENTION_INTERVAL_DAY = 9;
 
     /** An authority name of the battery content provider. */
     public static final String AUTHORITY = "com.android.settings.battery.usage.provider";
@@ -65,8 +67,6 @@ public final class DatabaseUtils {
     public static final String BATTERY_STATE_TABLE = "BatteryState";
     /** A class name for battery usage data provider. */
     public static final String SETTINGS_PACKAGE_PATH = "com.android.settings";
-    public static final String BATTERY_PROVIDER_CLASS_PATH =
-            "com.android.settings.fuelgauge.batteryusage.BatteryUsageContentProvider";
 
     /** A content URI to access battery usage states data. */
     public static final Uri BATTERY_CONTENT_URI =
@@ -133,7 +133,8 @@ public final class DatabaseUtils {
                 BatteryStateDatabase
                         .getInstance(context.getApplicationContext())
                         .batteryStateDao()
-                        .clearAllBefore(Clock.systemUTC().millis() - DATA_RETENTION_INTERVAL_MS);
+                        .clearAllBefore(Clock.systemUTC().millis()
+                                - Duration.ofDays(DATA_RETENTION_INTERVAL_DAY).toMillis());
             } catch (RuntimeException e) {
                 Log.e(TAG, "clearAllBefore() failed", e);
             }

src/com/android/settings/fuelgauge/batteryusage/PeriodicJobManager.java

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import androidx.annotation.VisibleForTesting;
+
+import java.text.SimpleDateFormat;
+import java.time.Clock;
+import java.time.Duration;
+import java.util.Date;
+import java.util.Locale;
+
+/** Manages the periodic job to schedule or cancel the next job. */
+public final class PeriodicJobManager {
+    private static final String TAG = "PeriodicJobManager";
+    private static final int ALARM_MANAGER_REQUEST_CODE = TAG.hashCode();
+
+    private static PeriodicJobManager sSingleton;
+
+    private final Context mContext;
+    private final AlarmManager mAlarmManager;
+    private final SimpleDateFormat mSimpleDateFormat =
+            new SimpleDateFormat("MMM dd,yyyy HH:mm:ss", Locale.ENGLISH);
+
+    @VisibleForTesting
+    static final int DATA_FETCH_INTERVAL_MINUTE = 60;
+
+    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+    void reset() {
+        sSingleton = null; // for testing only
+    }
+
+    /** Gets or creates the new {@link PeriodicJobManager} instance. */
+    public static synchronized PeriodicJobManager getInstance(Context context) {
+        if (sSingleton == null || sSingleton.mAlarmManager == null) {
+            sSingleton = new PeriodicJobManager(context);
+        }
+        return sSingleton;
+    }
+
+    private PeriodicJobManager(Context context) {
+        this.mContext = context.getApplicationContext();
+        this.mAlarmManager = context.getSystemService(AlarmManager.class);
+    }
+
+    /** Schedules the next alarm job if it is available. */
+    @SuppressWarnings("JavaUtilDate")
+    public void refreshJob() {
+        if (mAlarmManager == null) {
+            Log.e(TAG, "cannot schedule next alarm job");
+            return;
+        }
+        // Cancels the previous alert job and schedules the next one.
+        final PendingIntent pendingIntent = getPendingIntent();
+        cancelJob(pendingIntent);
+        if (!canScheduleExactAlarms()) {
+            Log.w(TAG, "cannot schedule exact alarm job");
+            return;
+        }
+        // Uses UTC time to avoid scheduler is impacted by different timezone.
+        final long triggerAtMillis = getTriggerAtMillis(Clock.systemUTC());
+        mAlarmManager.setExactAndAllowWhileIdle(
+                AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent);
+        Log.d(TAG, "schedule next alarm job at "
+                + mSimpleDateFormat.format(new Date(triggerAtMillis)));
+    }
+
+    void cancelJob(PendingIntent pendingIntent) {
+        if (mAlarmManager != null) {
+            mAlarmManager.cancel(pendingIntent);
+        } else {
+            Log.e(TAG, "cannot cancel the alarm job");
+        }
+    }
+
+    /** Gets the next alarm trigger UTC time in milliseconds. */
+    static long getTriggerAtMillis(Clock clock) {
+        long currentTimeMillis = clock.millis();
+        // Rounds to the previous nearest time slot and shifts to the next one.
+        long timeSlotUnit = Duration.ofMinutes(DATA_FETCH_INTERVAL_MINUTE).toMillis();
+        return (currentTimeMillis / timeSlotUnit) * timeSlotUnit + timeSlotUnit;
+    }
+
+    private PendingIntent getPendingIntent() {
+        final Intent broadcastIntent =
+                new Intent(mContext, PeriodicJobReceiver.class)
+                        .setAction(PeriodicJobReceiver.ACTION_PERIODIC_JOB_UPDATE);
+        return PendingIntent.getBroadcast(
+                mContext.getApplicationContext(),
+                ALARM_MANAGER_REQUEST_CODE,
+                broadcastIntent,
+                PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE);
+    }
+
+    private boolean canScheduleExactAlarms() {
+        return canScheduleExactAlarms(mAlarmManager);
+    }
+
+    /** Whether we can schedule exact alarm or not? */
+    public static boolean canScheduleExactAlarms(AlarmManager alarmManager) {
+        return alarmManager.canScheduleExactAlarms();
+    }
+}

src/com/android/settings/fuelgauge/batteryusage/PeriodicJobReceiver.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+/** Receives the periodic alarm {@link PendingIntent} callback. */
+public final class PeriodicJobReceiver extends BroadcastReceiver {
+    private static final String TAG = "PeriodicJobReceiver";
+    public static final String ACTION_PERIODIC_JOB_UPDATE =
+            "com.android.settings.battery.action.PERIODIC_JOB_UPDATE";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final String action = intent == null ? "" : intent.getAction();
+        if (!ACTION_PERIODIC_JOB_UPDATE.equals(action)) {
+            Log.w(TAG, "receive unexpected action=" + action);
+            return;
+        }
+        if (DatabaseUtils.isWorkProfile(context)) {
+            Log.w(TAG, "do not refresh job for work profile action=" + action);
+            return;
+        }
+        BatteryUsageDataLoader.enqueueWork(context);
+        Log.d(TAG, "refresh periodic job from action=" + action);
+        PeriodicJobManager.getInstance(context).refreshJob();
+        DatabaseUtils.clearExpiredDataIfNeeded(context);
+    }
+}

src/com/android/settings/fuelgauge/batteryusage/db/BatteryStateDatabase.java

@@ -40,7 +40,7 @@ public abstract class BatteryStateDatabase extends RoomDatabase {
         if (sBatteryStateDatabase == null) {
             sBatteryStateDatabase =
                     Room.databaseBuilder(
-                                    context, BatteryStateDatabase.class, "battery-usage-db-v1")
+                                    context, BatteryStateDatabase.class, "battery-usage-db-v5")
                             // Allows accessing data in the main thread for dumping bugreport.
                             .allowMainThreadQueries()
                             .fallbackToDestructiveMigration()

tests/robotests/src/com/android/settings/fuelgauge/batteryusage/BatteryUsageContentProviderTest.java

@@ -20,9 +20,11 @@ import static com.google.common.truth.Truth.assertThat;
 
 import static org.junit.Assert.assertThrows;
 
+import android.app.Application;
 import android.content.ContentResolver;
 import android.content.ContentValues;
 import android.content.Context;
+import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
 
@@ -37,9 +39,11 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.RobolectricTestRunner;
+import org.robolectric.Shadows;
 
 import java.time.Duration;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 /** Tests for {@link BatteryUsageContentProvider}. */
 @RunWith(RobolectricTestRunner.class)
@@ -301,6 +305,11 @@ public final class BatteryUsageContentProviderTest {
         final String actualPackageName3 = cursor.getString(packageNameIndex);
         assertThat(actualPackageName3).isEqualTo(packageName3);
         cursor.close();
-        // TODO: add verification for recheck broadcast.
+        // Verifies the broadcast intent.
+        TimeUnit.SECONDS.sleep(1);
+        final List<Intent> intents = Shadows.shadowOf((Application) mContext).getBroadcastIntents();
+        assertThat(intents).hasSize(1);
+        assertThat(intents.get(0).getAction()).isEqualTo(
+                BootBroadcastReceiver.ACTION_PERIODIC_JOB_RECHECK);
     }
 }

tests/robotests/src/com/android/settings/fuelgauge/batteryusage/BootBroadcastReceiverTest.java

@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.robolectric.Shadows.shadowOf;
+
+import android.app.AlarmManager;
+import android.app.Application;
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.fuelgauge.batteryusage.db.BatteryStateDao;
+import com.android.settings.fuelgauge.batteryusage.db.BatteryStateDatabase;
+import com.android.settings.testutils.BatteryTestUtils;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.Shadows;
+import org.robolectric.shadows.ShadowAlarmManager;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+/** Tests of {@link BootBroadcastReceiver}. */
+@RunWith(RobolectricTestRunner.class)
+public final class BootBroadcastReceiverTest {
+    private Context mContext;
+    private BatteryStateDao mDao;
+    private BootBroadcastReceiver mReceiver;
+    private ShadowAlarmManager mShadowAlarmManager;
+    private PeriodicJobManager mPeriodicJobManager;
+
+    @Before
+    public void setUp() {
+        mContext = ApplicationProvider.getApplicationContext();
+        mPeriodicJobManager = PeriodicJobManager.getInstance(mContext);
+        mShadowAlarmManager = shadowOf(mContext.getSystemService(AlarmManager.class));
+        ShadowAlarmManager.setCanScheduleExactAlarms(true);
+        mReceiver = new BootBroadcastReceiver();
+
+        // Inserts fake data into database for testing.
+        final BatteryStateDatabase database = BatteryTestUtils.setUpBatteryStateDatabase(mContext);
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, Clock.systemUTC().millis(), "com.android.systemui");
+        mDao = database.batteryStateDao();
+    }
+
+    @After
+    public void tearDown() {
+        mPeriodicJobManager.reset();
+    }
+
+    @Test
+    public void onReceive_withWorkProfile_notRefreshesJob() {
+        BatteryTestUtils.setWorkProfile(mContext);
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_BOOT_COMPLETED));
+
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void onReceive_withMyPackageReplacedIntent_refreshesJob() {
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_MY_PACKAGE_REPLACED));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_withMyPackageUnsuspendIntent_refreshesJob() {
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_MY_PACKAGE_UNSUSPENDED));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_withBootCompletedIntent_refreshesJob() {
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_BOOT_COMPLETED));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_withSetupWizardIntent_refreshesJob() {
+        mReceiver.onReceive(
+                mContext, new Intent(BootBroadcastReceiver.ACTION_SETUP_WIZARD_FINISHED));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_withRecheckIntent_refreshesJob() {
+        mReceiver.onReceive(
+                mContext, new Intent(BootBroadcastReceiver.ACTION_PERIODIC_JOB_RECHECK));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_unexpectedIntent_notRefreshesJob() {
+        mReceiver.onReceive(mContext, new Intent("invalid intent action"));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void onReceive_nullIntent_notRefreshesJob() {
+        mReceiver.onReceive(mContext, /*intent=*/ null);
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void onReceive_containsExpiredData_clearsExpiredDataFromDatabase()
+            throws InterruptedException {
+        insertExpiredData(/*shiftDay=*/ DatabaseUtils.DATA_RETENTION_INTERVAL_DAY);
+
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_BOOT_COMPLETED));
+
+        TimeUnit.MILLISECONDS.sleep(100);
+        assertThat(mDao.getAllAfter(0)).hasSize(1);
+    }
+
+    @Test
+    public void onReceive_withoutExpiredData_notClearsExpiredDataFromDatabase()
+            throws InterruptedException {
+        insertExpiredData(/*shiftDay=*/ DatabaseUtils.DATA_RETENTION_INTERVAL_DAY - 1);
+
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_BOOT_COMPLETED));
+
+        TimeUnit.MILLISECONDS.sleep(100);
+        assertThat(mDao.getAllAfter(0)).hasSize(3);
+    }
+
+    @Test
+    public void onReceive_withTimeChangedIntent_clearsAllDataAndRefreshesJob()
+            throws InterruptedException {
+        mReceiver.onReceive(mContext, new Intent(Intent.ACTION_TIME_CHANGED));
+
+        TimeUnit.MILLISECONDS.sleep(100);
+        assertThat(mDao.getAllAfter(0)).isEmpty();
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void invokeJobRecheck_broadcastsIntent() {
+        BootBroadcastReceiver.invokeJobRecheck(mContext);
+
+        final List<Intent> intents =
+                Shadows.shadowOf((Application) mContext).getBroadcastIntents();
+        assertThat(intents).hasSize(1);
+        assertThat(intents.get(0).getAction()).isEqualTo(
+                BootBroadcastReceiver.ACTION_PERIODIC_JOB_RECHECK);
+    }
+
+    private void insertExpiredData(int shiftDay) {
+        final long expiredTimeInMs =
+                Clock.systemUTC().millis() - Duration.ofDays(shiftDay).toMillis();
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, expiredTimeInMs - 1, "com.android.systemui");
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, expiredTimeInMs, "com.android.systemui");
+        // Ensures the testing environment is correct.
+        assertThat(mDao.getAllAfter(0)).hasSize(3);
+    }
+
+}

tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PeriodicJobManagerTest.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.robolectric.Shadows.shadowOf;
+
+import android.app.AlarmManager;
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.testutils.FakeClock;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowAlarmManager;
+
+import java.time.Duration;
+
+/** Tests of {@link PeriodicJobManager}. */
+@RunWith(RobolectricTestRunner.class)
+public final class PeriodicJobManagerTest {
+    private Context mContext;
+    private ShadowAlarmManager mShadowAlarmManager;
+    private PeriodicJobManager mPeriodicJobManager;
+
+    @Before
+    public void setUp() {
+        mContext = ApplicationProvider.getApplicationContext();
+        mPeriodicJobManager = PeriodicJobManager.getInstance(mContext);
+        mShadowAlarmManager = shadowOf(mContext.getSystemService(AlarmManager.class));
+        ShadowAlarmManager.setCanScheduleExactAlarms(true);
+    }
+
+    @After
+    public void tearDown() {
+        mPeriodicJobManager.reset();
+    }
+
+    @Test
+    public void refreshJob_refreshesAlarmJob() {
+        mPeriodicJobManager.refreshJob();
+
+        final ShadowAlarmManager.ScheduledAlarm alarm =
+                mShadowAlarmManager.peekNextScheduledAlarm();
+        // Verifies the alarm manager type.
+        assertThat(alarm.type).isEqualTo(AlarmManager.RTC_WAKEUP);
+        // Verifies there is pending intent in the alarm.
+        assertThat(alarm.operation).isNotNull();
+    }
+
+    @Test
+    public void refreshJob_withoutPermission_notRefreshesAlarmJob() {
+        ShadowAlarmManager.setCanScheduleExactAlarms(false);
+
+        mPeriodicJobManager.refreshJob();
+
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void getTriggerAtMillis_withoutOffset_returnsExpectedResult() {
+        long timeSlotUnit = PeriodicJobManager.DATA_FETCH_INTERVAL_MINUTE;
+        // Sets the current time.
+        Duration currentTimeDuration =
+                Duration.ofMinutes(timeSlotUnit * 2);
+        FakeClock fakeClock = new FakeClock();
+        fakeClock.setCurrentTime(currentTimeDuration);
+
+        assertThat(PeriodicJobManager.getTriggerAtMillis(fakeClock))
+                .isEqualTo(currentTimeDuration.plusMinutes(timeSlotUnit).toMillis());
+    }
+
+    @Test
+    public void getTriggerAtMillis_withOffset_returnsExpectedResult() {
+        long timeSlotUnit = PeriodicJobManager.DATA_FETCH_INTERVAL_MINUTE;
+        // Sets the current time.
+        Duration currentTimeDuration = Duration.ofMinutes(timeSlotUnit * 2);
+        FakeClock fakeClock = new FakeClock();
+        fakeClock.setCurrentTime(
+                currentTimeDuration.plusMinutes(1L).plusMillis(51L));
+
+        assertThat(PeriodicJobManager.getTriggerAtMillis(fakeClock))
+                .isEqualTo(currentTimeDuration.plusMinutes(timeSlotUnit).toMillis());
+    }
+}

tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PeriodicJobReceiverTest.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batteryusage;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.robolectric.Shadows.shadowOf;
+
+import android.app.AlarmManager;
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.fuelgauge.batteryusage.db.BatteryStateDao;
+import com.android.settings.fuelgauge.batteryusage.db.BatteryStateDatabase;
+import com.android.settings.testutils.BatteryTestUtils;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowAlarmManager;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.util.concurrent.TimeUnit;
+
+/** Tests of {@link PeriodicJobReceiver}. */
+@RunWith(RobolectricTestRunner.class)
+public final class PeriodicJobReceiverTest {
+    private static final Intent JOB_UPDATE_INTENT =
+            new Intent(PeriodicJobReceiver.ACTION_PERIODIC_JOB_UPDATE);
+
+    private Context mContext;
+    private BatteryStateDao mDao;
+    private PeriodicJobReceiver mReceiver;
+    private PeriodicJobManager mPeriodicJobManager;
+    private ShadowAlarmManager mShadowAlarmManager;
+
+    @Before
+    public void setUp() {
+        mContext = ApplicationProvider.getApplicationContext();
+        mPeriodicJobManager = PeriodicJobManager.getInstance(mContext);
+        mShadowAlarmManager = shadowOf(mContext.getSystemService(AlarmManager.class));
+        ShadowAlarmManager.setCanScheduleExactAlarms(true);
+        mReceiver = new PeriodicJobReceiver();
+
+        // Inserts fake data into database for testing.
+        final BatteryStateDatabase database = BatteryTestUtils.setUpBatteryStateDatabase(mContext);
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, Clock.systemUTC().millis(), "com.android.systemui");
+        mDao = database.batteryStateDao();
+    }
+
+    @After
+    public void tearDown() {
+        mPeriodicJobManager.reset();
+    }
+
+    @Test
+    public void onReceive_validAction_refreshesJob() {
+        mReceiver.onReceive(mContext, JOB_UPDATE_INTENT);
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNotNull();
+    }
+
+    @Test
+    public void onReceive_invalidAction_notRefreshesJob() {
+        mReceiver.onReceive(mContext, new Intent("invalid request update intent"));
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void onReceive_nullIntent_notRefreshesJob() {
+        mReceiver.onReceive(mContext, /*intent=*/ null);
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    @Test
+    public void onReceive_containsExpiredData_clearsExpiredDataFromDatabase()
+            throws InterruptedException {
+        insertExpiredData(/*shiftDay=*/ DatabaseUtils.DATA_RETENTION_INTERVAL_DAY);
+
+        mReceiver.onReceive(mContext, JOB_UPDATE_INTENT);
+
+        TimeUnit.MILLISECONDS.sleep(100);
+        assertThat(mDao.getAllAfter(0)).hasSize(1);
+    }
+
+    @Test
+    public void onReceive_withoutExpiredData_notClearsExpiredDataFromDatabase()
+            throws InterruptedException {
+        insertExpiredData(/*shiftDay=*/ DatabaseUtils.DATA_RETENTION_INTERVAL_DAY - 1);
+
+        mReceiver.onReceive(mContext, JOB_UPDATE_INTENT);
+
+        TimeUnit.MILLISECONDS.sleep(100);
+        assertThat(mDao.getAllAfter(0)).hasSize(3);
+    }
+
+    @Test
+    public void onReceive_inWorkProfileMode_notRefreshesJob() {
+        BatteryTestUtils.setWorkProfile(mContext);
+        mReceiver.onReceive(mContext, JOB_UPDATE_INTENT);
+        assertThat(mShadowAlarmManager.peekNextScheduledAlarm()).isNull();
+    }
+
+    private void insertExpiredData(int shiftDay) {
+        final long expiredTimeInMs =
+                Clock.systemUTC().millis() - Duration.ofDays(shiftDay).toMillis();
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, expiredTimeInMs - 1, "com.android.systemui");
+        BatteryTestUtils.insertDataToBatteryStateDatabase(
+                mContext, expiredTimeInMs, "com.android.systemui");
+        // Ensures the testing environment is correct.
+        assertThat(mDao.getAllAfter(0)).hasSize(3);
+    }
+
+}