Sync the charge time with battery info on settings

Test: atest SettingsTests

Bug: 296793655
Change-Id: I407de30589e77ba09916f54f06f4f9c345adf330

src/com/android/settings/fuelgauge/BatteryInfo.java

@@ -24,6 +24,7 @@ import android.os.BatteryStats.HistoryItem;
 import android.os.BatteryStatsManager;
 import android.os.BatteryUsageStats;
 import android.os.SystemClock;
+import android.provider.Settings;
 import android.text.format.Formatter;
 import android.util.Log;
 import android.util.SparseIntArray;
@@ -43,6 +44,7 @@ import com.android.settingslib.utils.StringUtil;
 
 public class BatteryInfo {
     private static final String TAG = "BatteryInfo";
+    private static final String GLOBAL_TIME_TO_FULL_MILLIS = "time_to_full_millis";
 
     public CharSequence chargeLabel;
     public CharSequence remainingLabel;
@@ -147,6 +149,12 @@ public class BatteryInfo {
         BatteryInfo.getBatteryInfo(context, callback,  /* batteryUsageStats */ null, shortString);
     }
 
+    static long getSettingsChargeTimeRemaining(final Context context) {
+        return Settings.Global.getLong(
+                context.getContentResolver(),
+                GLOBAL_TIME_TO_FULL_MILLIS, -1);
+    }
+
     public static void getBatteryInfo(final Context context, final Callback callback,
             @Nullable final BatteryUsageStats batteryUsageStats,
             boolean shortString) {
@@ -276,6 +284,13 @@ public class BatteryInfo {
             BatteryUsageStats stats, BatteryInfo info, boolean compactStatus) {
         final Resources resources = context.getResources();
         final long chargeTimeMs = stats.getChargeTimeRemainingMs();
+        if (getSettingsChargeTimeRemaining(context) != chargeTimeMs) {
+            Settings.Global.putLong(
+                    context.getContentResolver(),
+                    GLOBAL_TIME_TO_FULL_MILLIS,
+                    chargeTimeMs);
+        }
+
         final int status = batteryBroadcast.getIntExtra(BatteryManager.EXTRA_STATUS,
                 BatteryManager.BATTERY_STATUS_UNKNOWN);
         info.discharging = false;

tests/robotests/src/com/android/settings/fuelgauge/BatteryInfoTest.java

@@ -229,6 +229,37 @@ public class BatteryInfoTest {
         assertThat(info.chargeLabel.toString()).contains(STATUS_CHARGING_PAUSED);
     }
 
+    @Test
+    public void testGetBatteryInfo_getChargeTimeRemaining_updateSettingsGlobal() {
+        doReturn(TEST_CHARGE_TIME_REMAINING)
+                .when(mBatteryUsageStats)
+                .getChargeTimeRemainingMs();
+
+        BatteryInfo.getBatteryInfo(mContext, mChargingBatteryBroadcast,
+                mBatteryUsageStats, MOCK_ESTIMATE, SystemClock.elapsedRealtime() * 1000,
+                false /* shortString */);
+
+        assertThat(BatteryInfo.getSettingsChargeTimeRemaining(mContext)).isEqualTo(
+                TEST_CHARGE_TIME_REMAINING);
+    }
+
+    @Test
+    public void testGetBatteryInfo_differentChargeTimeRemaining_updateSettingsGlobal() {
+        doReturn(TEST_CHARGE_TIME_REMAINING)
+                .when(mBatteryUsageStats)
+                .getChargeTimeRemainingMs();
+        final long newTimeToFull = 300L;
+        doReturn(newTimeToFull)
+                .when(mBatteryUsageStats)
+                .getChargeTimeRemainingMs();
+
+        BatteryInfo.getBatteryInfo(mContext, mChargingBatteryBroadcast,
+                mBatteryUsageStats, MOCK_ESTIMATE, SystemClock.elapsedRealtime() * 1000,
+                false /* shortString */);
+
+        assertThat(BatteryInfo.getSettingsChargeTimeRemaining(mContext)).isEqualTo(newTimeToFull);
+    }
+
     @Test
     public void testGetBatteryInfo_dockDefenderActive_updateChargeString() {
         doReturn(TEST_CHARGE_TIME_REMAINING / 1000)