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      1 /*
      2  * Copyright (C) 2015 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.preconditions.cts;
     17 
     18 import android.content.Context;
     19 import android.content.pm.PackageManager;
     20 import android.test.AndroidTestCase;
     21 import android.util.Log;
     22 
     23 import com.android.compatibility.common.preconditions.ExternalStorageHelper;
     24 import com.android.compatibility.common.preconditions.ScreenLockHelper;
     25 
     26 /**
     27  * A test to verify that device-side preconditions are met for CTS
     28  */
     29 public class PreconditionsTest extends AndroidTestCase {
     30 
     31     private static final String TAG = "PreconditionsTest";
     32 
     33     /**
     34      * Test if device has no screen lock
     35      * @throws Exception
     36      */
     37     public void testScreenUnlocked() throws Exception {
     38         PackageManager pm = this.getContext().getPackageManager();
     39         if (pm.hasSystemFeature(PackageManager.FEATURE_LEANBACK)
     40                 || pm.hasSystemFeature(PackageManager.FEATURE_WATCH)
     41                 || pm.hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
     42             Log.i(TAG, "Skipping screen lock precondition for this device type");
     43             return; // do not test for unlocked screen on devices with no screen lock
     44         }
     45         assertFalse("Device must have screen lock disabled",
     46                 ScreenLockHelper.isDeviceSecure(this.getContext()));
     47     }
     48 
     49     /**
     50      * Test if device has accessible external storage
     51      * @throws Exception
     52      */
     53     public void testExternalStoragePresent() throws Exception {
     54         assertTrue("Device must have external storage mounted in order to run CTS",
     55                 ExternalStorageHelper.isExternalStorageReadable());
     56         assertTrue("Device external storage must be writable in order to run CTS",
     57                 ExternalStorageHelper.isExternalStorageWritable());
     58     }
     59 
     60 }
     61