PawletOS/app_Settings
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Add NPE check for screen and cellular update.

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When battery is full of charge, usageList in BatteryStatsHelper
will be empty. As a result, we cannot find BatterySipper with
type screen and cell, which creates the null pointer error.

In this cl, I add NPE check for sipper. When sipper is null, all
data will be set to default value. I also add check for totalPower
so we won't have divided by zero error.

Bug: 35757789
Test: RunSettingsRoboTests
Change-Id: I80f3c0c542e0a50868e7c314a8d9b3c17999d8c6
This commit is contained in:
jackqdyulei
2017-02-24 13:03:35 -08:00
parent 7e0df1e48c
commit 906055e383
2 changed files with 24 additions and 8 deletions
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17
tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
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@@ -40,6 +40,7 @@ import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Answers;
import org.mockito.Matchers;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.robolectric.RuntimeEnvironment;
@@ -180,6 +181,9 @@ public class PowerUsageSummaryTest {
mPowerUsageSummary.mStatsHelper = mBatteryHelper;
when(mBatteryHelper.getUsageList()).thenReturn(mUsageList);
mPowerUsageSummary.mScreenUsagePref = mScreenUsagePref;
mPowerUsageSummary.mScreenConsumptionPref = mScreenConsumptionPref;
mPowerUsageSummary.mCellularNetworkPref = mCellularNetworkPref;
}
@Test
@@ -384,7 +388,6 @@ public class PowerUsageSummaryTest {
@Test
public void testUpdateCellularPreference_ShowCorrectSummary() {
mPowerUsageSummary.mCellularNetworkPref = mCellularNetworkPref;
final double percent = POWER_MAH / TOTAL_POWER * DISCHARGE_AMOUNT;
final String expectedSummary = mRealContext.getString(R.string.battery_overall_usage,
Utils.formatPercentage((int) percent));
@@ -397,8 +400,6 @@ public class PowerUsageSummaryTest {
@Test
public void testUpdateScreenPreference_ShowCorrectSummary() {
mPowerUsageSummary.mScreenUsagePref = mScreenUsagePref;
mPowerUsageSummary.mScreenConsumptionPref = mScreenConsumptionPref;
final String expectedUsedTime = mRealContext.getString(R.string.battery_used_for,
Utils.formatElapsedTime(mRealContext, USAGE_TIME_MS, false));
final double percent = BATTERY_SCREEN_USAGE / TOTAL_POWER * DISCHARGE_AMOUNT;
@@ -415,6 +416,16 @@ public class PowerUsageSummaryTest {
verify(mScreenConsumptionPref).setSummary(expectedOverallUsage);
}
@Test
public void testUpdatePreference_UsageListEmpty_ShouldNotCrash() {
when(mBatteryHelper.getUsageList()).thenReturn(new ArrayList<BatterySipper>());
doReturn("").when(mPowerUsageSummary).getString(anyInt(), Matchers.anyObject());
// Should not crash when update
mPowerUsageSummary.updateScreenPreference(DISCHARGE_AMOUNT);
mPowerUsageSummary.updateCellularPreference(DISCHARGE_AMOUNT);
}
@Test
public void testCalculatePercentage() {
final double percent = mPowerUsageSummary.calculatePercentage(POWER_MAH, DISCHARGE_AMOUNT);