| /* |
| * Copyright (C) 2019 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 android.alarmmanager.cts; |
| |
| import static android.app.AlarmManager.ELAPSED_REALTIME_WAKEUP; |
| import static android.app.AlarmManager.RTC_WAKEUP; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import android.alarmmanager.util.AlarmManagerDeviceConfigHelper; |
| import android.app.AlarmManager; |
| import android.app.PendingIntent; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.SystemClock; |
| import android.platform.test.annotations.AppModeFull; |
| import android.util.Log; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.filters.LargeTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import com.android.compatibility.common.util.BatteryUtils; |
| import com.android.compatibility.common.util.SystemUtil; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Tests that system time changes are handled appropriately for alarms |
| */ |
| @AppModeFull |
| @LargeTest |
| @RunWith(AndroidJUnit4.class) |
| public class TimeChangeTests { |
| private static final String TAG = TimeChangeTests.class.getSimpleName(); |
| private static final String ACTION_ALARM = "android.alarmmanager.cts.ACTION_ALARM"; |
| private static final long DEFAULT_WAIT_MILLIS = 5_000; |
| private static final long MILLIS_IN_MINUTE = 60_000; |
| |
| private final Context mContext = InstrumentationRegistry.getTargetContext(); |
| private final AlarmManager mAlarmManager = mContext.getSystemService(AlarmManager.class); |
| private AlarmManagerDeviceConfigHelper mConfigHelper = new AlarmManagerDeviceConfigHelper(); |
| private PendingIntent mAlarmPi; |
| private long mTestStartRtc; |
| private long mTestStartElapsed; |
| private boolean mTimeChanged; |
| private boolean mAutoTimeEnabled; |
| |
| final CountDownLatch mAlarmLatch = new CountDownLatch(1); |
| |
| private BroadcastReceiver mAlarmReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| switch (intent.getAction()) { |
| case ACTION_ALARM: |
| if (mAlarmLatch != null) { |
| mAlarmLatch.countDown(); |
| } |
| break; |
| default: |
| Log.e(TAG, "Received unexpected action " + intent.getAction()); |
| } |
| } |
| }; |
| |
| private void setTime(long rtcToSet) { |
| Log.i(TAG, "Changing system time to " + rtcToSet); |
| SystemUtil.runWithShellPermissionIdentity(() -> mAlarmManager.setTime(rtcToSet)); |
| mTimeChanged = true; |
| } |
| |
| private boolean isAutoTimeEnabled() { |
| String auto_time = SystemUtil.runShellCommand("settings get global auto_time"); |
| return auto_time.trim().equals("1"); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| final Intent alarmIntent = new Intent(ACTION_ALARM) |
| .setPackage(mContext.getPackageName()) |
| .addFlags(Intent.FLAG_RECEIVER_FOREGROUND); |
| mAlarmPi = PendingIntent.getBroadcast(mContext, 0, alarmIntent, PendingIntent.FLAG_MUTABLE); |
| final IntentFilter alarmFilter = new IntentFilter(ACTION_ALARM); |
| mContext.registerReceiver(mAlarmReceiver, alarmFilter, |
| Context.RECEIVER_EXPORTED_UNAUDITED); |
| mConfigHelper.with("min_futurity", 0L).commitAndAwaitPropagation(); |
| BatteryUtils.runDumpsysBatteryUnplug(); |
| mTestStartRtc = System.currentTimeMillis(); |
| mTestStartElapsed = SystemClock.elapsedRealtime(); |
| mAutoTimeEnabled = isAutoTimeEnabled(); |
| // Disable auto time as tests might fail if the system restores time while they are running |
| SystemUtil.runShellCommand("settings put global auto_time 0"); |
| } |
| |
| @Test |
| public void elapsedAlarmsUnaffected() throws Exception { |
| final long delayElapsed = 5_000; |
| final long expectedTriggerElapsed = mTestStartElapsed + delayElapsed; |
| mAlarmManager.setExact(ELAPSED_REALTIME_WAKEUP, expectedTriggerElapsed, mAlarmPi); |
| final long newRtc = mTestStartRtc - 32 * MILLIS_IN_MINUTE; // arbitrary, shouldn't matter |
| setTime(newRtc); |
| Thread.sleep(delayElapsed); |
| assertTrue("Elapsed alarm did not fire as expected after time change", |
| mAlarmLatch.await(DEFAULT_WAIT_MILLIS, TimeUnit.MILLISECONDS)); |
| } |
| |
| @Test |
| public void rtcAlarmsRescheduled() throws Exception { |
| final long newRtc = mTestStartRtc + 14 * MILLIS_IN_MINUTE; // arbitrary, but in the future |
| final long delayRtc = 4_231; |
| final long expectedTriggerRtc = newRtc + delayRtc; |
| mAlarmManager.setExact(RTC_WAKEUP, expectedTriggerRtc, mAlarmPi); |
| Thread.sleep(delayRtc); |
| assertFalse("Alarm fired before time was changed", |
| mAlarmLatch.await(DEFAULT_WAIT_MILLIS, TimeUnit.MILLISECONDS)); |
| setTime(newRtc); |
| Thread.sleep(delayRtc); |
| assertTrue("Alarm did not fire as expected after time was changed", |
| mAlarmLatch.await(DEFAULT_WAIT_MILLIS, TimeUnit.MILLISECONDS)); |
| } |
| |
| @After |
| public void tearDown() { |
| mConfigHelper.restoreAll(); |
| BatteryUtils.runDumpsysBatteryReset(); |
| if (mTimeChanged) { |
| // Make an attempt at resetting the clock to normal |
| final long testDuration = SystemClock.elapsedRealtime() - mTestStartElapsed; |
| final long expectedCorrectRtc = mTestStartRtc + testDuration; |
| setTime(expectedCorrectRtc); |
| } |
| if (mAutoTimeEnabled) { |
| // Restore auto time |
| SystemUtil.runShellCommand("settings put global auto_time 1"); |
| } |
| } |
| } |