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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package android.cts.backup;
     18 
     19 import static org.junit.Assert.assertNull;
     20 
     21 import com.android.tradefed.device.DeviceNotAvailableException;
     22 import com.android.tradefed.log.LogUtil.CLog;
     23 import com.android.tradefed.testtype.DeviceJUnit4ClassRunner;
     24 
     25 import org.junit.After;
     26 import org.junit.Test;
     27 import org.junit.runner.RunWith;
     28 
     29 /**
     30  * Test checking that allowBackup manifest attribute is respected by backup manager.
     31  *
     32  * Uses 2 apps that differ only by 'allowBackup' manifest attribute value.
     33  *
     34  * Tests 2 scenarios:
     35  *
     36  * 1. App that has 'allowBackup=false' in the manifest shouldn't be backed up.
     37  * 2. App that doesn't have 'allowBackup' in the manifest (default is true) should be backed up.
     38  *
     39  * The flow of the tests is the following:
     40  * 1. Install the app
     41  * 2. Generate files in the app's data folder.
     42  * 3. Run 'bmgr backupnow'. Depending on the manifest we expect either 'Success' or
     43  * 'Backup is not allowed' in the output.
     44  * 4. Uninstall/reinstall the app
     45  * 5. Check whether the files were restored or not depending on the manifest.
     46  *
     47  * Invokes device side tests provided by
     48  * android.cts.backup.backupnotallowedapp.AllowBackupTest.
     49  */
     50 @RunWith(DeviceJUnit4ClassRunner.class)
     51 public class AllowBackupHostSideTest extends BaseBackupHostSideTest {
     52 
     53     private static final String ALLOWBACKUP_APP_NAME = "android.cts.backup.backupnotallowedapp";
     54     private static final String ALLOWBACKUP_DEVICE_TEST_CLASS_NAME =
     55             ALLOWBACKUP_APP_NAME + ".AllowBackupTest";
     56 
     57     /** The name of the APK of the app that has allowBackup=false in the manifest */
     58     private static final String ALLOWBACKUP_FALSE_APP_APK = "BackupNotAllowedApp.apk";
     59 
     60     /** The name of the APK of the app that doesn't have allowBackup in the manifest
     61      * (same as allowBackup=true by default) */
     62     private static final String ALLOWBACKUP_APP_APK = "BackupAllowedApp.apk";
     63 
     64     @After
     65     @Override
     66     public void tearDown() throws Exception {
     67         super.tearDown();
     68 
     69         if (!mIsBackupSupported) {
     70             return;
     71         }
     72 
     73         // Clear backup data and uninstall the package (in that order!)
     74         clearBackupDataInLocalTransport(ALLOWBACKUP_APP_NAME);
     75         assertNull(uninstallPackage(ALLOWBACKUP_APP_NAME));
     76     }
     77 
     78     @Test
     79     public void testAllowBackup_False() throws Exception {
     80         if (!mIsBackupSupported) {
     81             CLog.i("android.software.backup feature is not supported on this device");
     82             return;
     83         }
     84 
     85         installPackage(ALLOWBACKUP_FALSE_APP_APK, "-d", "-r");
     86 
     87         // Generate the files that are going to be backed up.
     88         checkAllowBackupDeviceTest("createFiles");
     89 
     90         // Do a backup
     91         String backupnowOutput = backupNow(ALLOWBACKUP_APP_NAME);
     92 
     93         assertBackupIsNotAllowed(ALLOWBACKUP_APP_NAME, backupnowOutput);
     94 
     95         assertNull(uninstallPackage(ALLOWBACKUP_APP_NAME));
     96 
     97         installPackage(ALLOWBACKUP_FALSE_APP_APK, "-d", "-r");
     98 
     99         checkAllowBackupDeviceTest("checkNoFilesExist");
    100     }
    101 
    102     @Test
    103     public void testAllowBackup_True() throws Exception {
    104         if (!mIsBackupSupported) {
    105             CLog.i("android.software.backup feature is not supported on this device");
    106             return;
    107         }
    108 
    109         installPackage(ALLOWBACKUP_APP_APK, "-d", "-r");
    110 
    111         // Generate the files that are going to be backed up.
    112         checkAllowBackupDeviceTest("createFiles");
    113 
    114         // Do a backup
    115         String backupnowOutput = backupNow(ALLOWBACKUP_APP_NAME);
    116 
    117         assertBackupIsSuccessful(ALLOWBACKUP_APP_NAME, backupnowOutput);
    118 
    119         assertNull(uninstallPackage(ALLOWBACKUP_APP_NAME));
    120 
    121         installPackage(ALLOWBACKUP_APP_APK, "-d", "-r");
    122 
    123         checkAllowBackupDeviceTest("checkAllFilesExist");
    124     }
    125 
    126     private void checkAllowBackupDeviceTest(String methodName)
    127             throws DeviceNotAvailableException {
    128         checkDeviceTest(ALLOWBACKUP_APP_NAME, ALLOWBACKUP_DEVICE_TEST_CLASS_NAME,
    129                 methodName);
    130     }
    131 
    132 }
    133