1 /* 2 * Copyright (C) 2009 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 com.android.cts.appaccessdata; 18 19 import java.io.FileInputStream; 20 import java.io.FileNotFoundException; 21 import java.io.IOException; 22 23 import android.test.AndroidTestCase; 24 25 /** 26 * Test that another app's private data cannot be accessed. 27 * 28 * Assumes that {@link APP_WITH_DATA_PKG} has already created the private data. 29 */ 30 public class AccessPrivateDataTest extends AndroidTestCase { 31 32 /** 33 * The Android package name of the application that owns the private data 34 */ 35 private static final String APP_WITH_DATA_PKG = "com.android.cts.appwithdata"; 36 37 /** 38 * Name of private file to access. This must match the name of the file created by 39 * {@link APP_WITH_DATA_PKG}. 40 */ 41 private static final String PRIVATE_FILE_NAME = "private_file.txt"; 42 43 /** 44 * Tests that another app's private file cannot be accessed 45 * @throws IOException 46 */ testAccessPrivateData()47 public void testAccessPrivateData() throws IOException { 48 try { 49 // construct the absolute file path to the app's private file 50 String privateFilePath = String.format("/data/data/%s/%s", APP_WITH_DATA_PKG, 51 PRIVATE_FILE_NAME); 52 FileInputStream inputStream = new FileInputStream(privateFilePath); 53 inputStream.read(); 54 inputStream.close(); 55 fail("Was able to access another app's private data"); 56 } catch (FileNotFoundException e) { 57 // expected 58 } catch (SecurityException e) { 59 // also valid 60 } 61 } 62 } 63