| /* |
| * Copyright (C) 2017 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.internal.os; |
| |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assume.assumeTrue; |
| |
| import android.app.ActivityManager; |
| import android.app.IActivityManager; |
| import android.app.IStopUserCallback; |
| import android.content.Context; |
| import android.content.pm.UserInfo; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.support.test.uiautomator.UiDevice; |
| import android.util.ArraySet; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.filters.LargeTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| @LargeTest |
| @RunWith(AndroidJUnit4.class) |
| public class BatteryStatsUserLifecycleTests { |
| |
| private static final long POLL_INTERVAL_MS = 500; |
| private static final long USER_REMOVE_TIMEOUT_MS = 5_000; |
| private static final long STOP_USER_TIMEOUT_MS = 10_000; |
| private static final long BATTERYSTATS_POLLING_TIMEOUT_MS = 5_000; |
| |
| private static final String CPU_DATA_TAG = "cpu"; |
| private static final String CPU_FREQ_DATA_TAG = "ctf"; |
| |
| private int mTestUserId = UserHandle.USER_NULL; |
| private Context mContext; |
| private UserManager mUm; |
| private IActivityManager mIam; |
| |
| @BeforeClass |
| public static void setUpOnce() { |
| assumeTrue(UserManager.getMaxSupportedUsers() > 1); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| mContext = InstrumentationRegistry.getTargetContext(); |
| mUm = UserManager.get(mContext); |
| mIam = ActivityManager.getService(); |
| final UserInfo user = mUm.createUser("Test_user_" + System.currentTimeMillis() / 1000, 0); |
| assertNotNull("Unable to create test user", user); |
| mTestUserId = user.id; |
| batteryOnScreenOff(); |
| } |
| |
| @Test |
| public void testNoCpuDataForRemovedUser() throws Exception { |
| mIam.startUserInBackground(mTestUserId); |
| waitUntilTrue("No uids for started user " + mTestUserId, |
| () -> getNumberOfUidsInBatteryStats() > 0, BATTERYSTATS_POLLING_TIMEOUT_MS); |
| |
| CountDownLatch stopUserLatch = new CountDownLatch(1); |
| mIam.stopUser(mTestUserId, true, new IStopUserCallback.Stub() { |
| @Override |
| public void userStopped(int userId) throws RemoteException { |
| stopUserLatch.countDown(); |
| } |
| |
| @Override |
| public void userStopAborted(int userId) throws RemoteException { |
| } |
| }); |
| assertTrue("User " + mTestUserId + " could not be stopped", |
| stopUserLatch.await(STOP_USER_TIMEOUT_MS, TimeUnit.MILLISECONDS)); |
| |
| mUm.removeUser(mTestUserId); |
| waitUntilTrue("Unable to remove user " + mTestUserId, () -> { |
| for (UserInfo user : mUm.getUsers()) { |
| if (user.id == mTestUserId) { |
| return false; |
| } |
| } |
| return true; |
| }, USER_REMOVE_TIMEOUT_MS); |
| waitUntilTrue("Uids still found for removed user " + mTestUserId, |
| () -> getNumberOfUidsInBatteryStats() == 0, BATTERYSTATS_POLLING_TIMEOUT_MS); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| batteryOffScreenOn(); |
| if (mTestUserId != UserHandle.USER_NULL) { |
| mUm.removeUser(mTestUserId); |
| } |
| } |
| |
| private int getNumberOfUidsInBatteryStats() throws Exception { |
| ArraySet<Integer> uids = new ArraySet<>(); |
| final String dumpsys = executeShellCommand("dumpsys batterystats --checkin"); |
| for (String line : dumpsys.split("\n")) { |
| final String[] parts = line.trim().split(","); |
| if (parts.length < 5 || |
| (!parts[3].equals(CPU_DATA_TAG) && !parts[3].equals(CPU_FREQ_DATA_TAG))) { |
| continue; |
| } |
| try { |
| final int uid = Integer.parseInt(parts[1]); |
| if (UserHandle.getUserId(uid) == mTestUserId) { |
| uids.add(uid); |
| } |
| } catch (NumberFormatException nexc) { |
| // ignore |
| } |
| } |
| return uids.size(); |
| } |
| |
| protected void batteryOnScreenOff() throws Exception { |
| executeShellCommand("dumpsys battery unplug"); |
| executeShellCommand("dumpsys batterystats enable pretend-screen-off"); |
| } |
| |
| protected void batteryOffScreenOn() throws Exception { |
| executeShellCommand("dumpsys battery reset"); |
| executeShellCommand("dumpsys batterystats disable pretend-screen-off"); |
| } |
| |
| private String executeShellCommand(String cmd) throws Exception { |
| return UiDevice.getInstance( |
| InstrumentationRegistry.getInstrumentation()).executeShellCommand(cmd); |
| } |
| |
| private void waitUntilTrue(String message, Condition condition, long timeout) throws Exception { |
| final long deadLine = System.currentTimeMillis() + timeout; |
| while (System.currentTimeMillis() <= deadLine && !condition.isTrue()) { |
| Thread.sleep(POLL_INTERVAL_MS); |
| } |
| assertTrue(message, condition.isTrue()); |
| } |
| |
| private interface Condition { |
| boolean isTrue() throws Exception; |
| } |
| } |