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      1 /*
      2  * Copyright (C) 2016 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 package com.android.cts.deviceadmin;
     17 
     18 import android.app.admin.DeviceAdminReceiver;
     19 import android.app.admin.DevicePolicyManager;
     20 import android.content.ComponentName;
     21 import android.content.pm.PackageManager;
     22 import android.os.Build;
     23 import android.test.AndroidTestCase;
     24 
     25 public class BaseDeviceAdminTest extends AndroidTestCase {
     26 
     27     public static class AdminReceiver extends DeviceAdminReceiver {
     28     }
     29 
     30     protected String mPackageName;
     31     protected ComponentName mAdminComponent;
     32     protected boolean mHasSecureLockScreen;
     33 
     34     public DevicePolicyManager dpm;
     35 
     36     @Override
     37     protected void setUp() throws Exception {
     38         super.setUp();
     39 
     40         dpm = mContext.getSystemService(DevicePolicyManager.class);
     41         mPackageName = mContext.getPackageName();
     42         mAdminComponent = new ComponentName(mContext, AdminReceiver.class);
     43         mHasSecureLockScreen = mContext.getPackageManager()
     44                 .hasSystemFeature(PackageManager.FEATURE_SECURE_LOCK_SCREEN);
     45     }
     46 
     47     /**
     48      * @return the target API level.  Note we don't get it from the package manager information
     49      * but we just parse the last two digits of the package name.  This is to catch a potential
     50      * issue where we forget to change the target API level in the manifest.  (Conversely,
     51      * if we forget to change the package name, we'll catch that in the caller side.)
     52      */
     53     protected int getTargetApiLevel() {
     54         final String packageName = mContext.getPackageName();
     55         return Integer.parseInt(packageName.substring(packageName.length() - 2));
     56     }
     57 
     58     protected boolean isDeviceOwner() {
     59         return dpm.isDeviceOwnerApp(mAdminComponent.getPackageName());
     60     }
     61 
     62     protected void assertDeviceOwner() {
     63         assertTrue("Not device owner", isDeviceOwner());
     64     }
     65 
     66     protected void assertNotDeviceOwner() {
     67         assertFalse("Must not be device owner", isDeviceOwner());
     68     }
     69 
     70     protected void assertNotActiveAdmin() throws Exception {
     71         for (int i = 0; i < 1000 && dpm.isAdminActive(mAdminComponent); i++) {
     72             Thread.sleep(10);
     73         }
     74         assertFalse("Still active admin", dpm.isAdminActive(mAdminComponent));
     75     }
     76 
     77     protected boolean shouldResetPasswordThrow() {
     78         return getTargetApiLevel() > Build.VERSION_CODES.M;
     79     }
     80 
     81     protected void resetComplexPasswordRestrictions() {
     82         dpm.setPasswordMinimumLength(mAdminComponent, 0);
     83         dpm.setPasswordMinimumUpperCase(mAdminComponent, 0);
     84         dpm.setPasswordMinimumLowerCase(mAdminComponent, 0);
     85         dpm.setPasswordMinimumLetters(mAdminComponent, 0);
     86         dpm.setPasswordMinimumNumeric(mAdminComponent, 0);
     87         dpm.setPasswordMinimumSymbols(mAdminComponent, 0);
     88         dpm.setPasswordMinimumNonLetter(mAdminComponent, 0);
     89     }
     90 
     91     protected void clearPassword() {
     92         assertDeviceOwner();
     93 
     94         resetComplexPasswordRestrictions();
     95 
     96         dpm.setPasswordQuality(mAdminComponent, DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED);
     97         assertTrue(dpm.resetPassword("", /* flags =*/ 0));
     98     }
     99 }
    100