1/* 2 * Copyright (C) 2010 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 17package android.app; 18 19import java.io.File; 20import java.util.Random; 21 22import android.app.DownloadManager.Query; 23import android.app.DownloadManager.Request; 24import android.database.Cursor; 25import android.net.Uri; 26import android.os.ParcelFileDescriptor; 27import android.util.Log; 28 29 30public class DownloadManagerStressTest extends DownloadManagerBaseTest { 31 private static String LOG_TAG = "android.net.DownloadManagerStressTest"; 32 33 /** 34 * {@inheritDoc} 35 */ 36 @Override 37 public void setUp() throws Exception { 38 super.setUp(); 39 mServer.play(0); 40 setWiFiStateOn(true); 41 removeAllCurrentDownloads(); 42 } 43 44 /** 45 * Attempts to downloading thousands of files simultaneously 46 */ 47 public void testDownloadThousands() throws Exception { 48 int NUM_FILES = 1500; 49 int MAX_FILE_SIZE = 3000; 50 long[] reqs = new long[NUM_FILES]; 51 52 // need to be sure all current downloads have stopped first 53 MultipleDownloadsCompletedReceiver receiver = registerNewMultipleDownloadsReceiver(); 54 Cursor cursor = null; 55 try { 56 Random r = new LoggingRng(); 57 for (int i = 0; i < NUM_FILES; ++i) { 58 int size = r.nextInt(MAX_FILE_SIZE); 59 byte[] blobData = generateData(size, DataType.TEXT); 60 61 Uri uri = getServerUri(DEFAULT_FILENAME); 62 Request request = new Request(uri); 63 request.setTitle(String.format("%s--%d", DEFAULT_FILENAME, i)); 64 65 // Prepare the mock server with a standard response 66 enqueueResponse(HTTP_OK, blobData); 67 68 Log.i(LOG_TAG, "issuing request: " + i); 69 long reqId = mDownloadManager.enqueue(request); 70 reqs[i] = reqId; 71 } 72 73 // wait for the download to complete or timeout 74 waitForDownloadsOrTimeout(WAIT_FOR_DOWNLOAD_POLL_TIME, 75 MAX_WAIT_FOR_LARGE_DOWNLOAD_TIME); 76 cursor = mDownloadManager.query(new Query()); 77 assertEquals(NUM_FILES, cursor.getCount()); 78 Log.i(LOG_TAG, "Verified number of downloads in download manager is what we expect."); 79 while (cursor.moveToNext()) { 80 int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS)); 81 String filename = cursor.getString(cursor.getColumnIndex( 82 DownloadManager.COLUMN_URI)); 83 String errorString = String.format("File %s failed to download successfully. " + 84 "Status code: %d", filename, status); 85 assertEquals(errorString, DownloadManager.STATUS_SUCCESSFUL, status); 86 } 87 Log.i(LOG_TAG, "Verified each download was successful."); 88 assertEquals(NUM_FILES, receiver.numDownloadsCompleted()); 89 Log.i(LOG_TAG, "Verified number of completed downloads in our receiver."); 90 91 // Verify that for each request, we can open the downloaded file 92 for (int i = 0; i < NUM_FILES; ++i) { 93 ParcelFileDescriptor pfd = mDownloadManager.openDownloadedFile(reqs[i]); 94 pfd.close(); 95 } 96 Log.i(LOG_TAG, "Verified we can open each file."); 97 } finally { 98 if (cursor != null) { 99 cursor.close(); 100 } 101 mContext.unregisterReceiver(receiver); 102 removeAllCurrentDownloads(); 103 } 104 } 105 106 /** 107 * Tests trying to download a large file (50M bytes). 108 */ 109 public void testDownloadLargeFile() throws Exception { 110 long fileSize = 50000000L; // note: kept relatively small to not exceed /cache dir size 111 File largeFile = createFileOnSD(null, fileSize, DataType.TEXT, null); 112 MultipleDownloadsCompletedReceiver receiver = registerNewMultipleDownloadsReceiver(); 113 114 try { 115 long dlRequest = doStandardEnqueue(largeFile); 116 117 // wait for the download to complete 118 waitForDownloadOrTimeout(dlRequest); 119 120 ParcelFileDescriptor pfd = mDownloadManager.openDownloadedFile(dlRequest); 121 verifyFileContents(pfd, largeFile); 122 verifyFileSize(pfd, largeFile.length()); 123 124 assertEquals(1, receiver.numDownloadsCompleted()); 125 mContext.unregisterReceiver(receiver); 126 } catch (Exception e) { 127 throw e; 128 } finally { 129 largeFile.delete(); 130 } 131 } 132 133 /** 134 * Tests trying to download a large file (~600M bytes) when there's not enough space in cache 135 */ 136 public void testInsufficientSpace() throws Exception { 137 // @TODO: Rework this to fill up cache partition with a dynamically calculated size 138 long fileSize = 600000000L; 139 File largeFile = createFileOnSD(null, fileSize, DataType.TEXT, null); 140 141 Cursor cursor = null; 142 try { 143 long dlRequest = doStandardEnqueue(largeFile); 144 145 // wait for the download to complete 146 waitForDownloadOrTimeout(dlRequest); 147 148 cursor = getCursor(dlRequest); 149 verifyInt(cursor, DownloadManager.COLUMN_STATUS, DownloadManager.STATUS_FAILED); 150 verifyInt(cursor, DownloadManager.COLUMN_REASON, 151 DownloadManager.ERROR_INSUFFICIENT_SPACE); 152 } finally { 153 if (cursor != null) { 154 cursor.close(); 155 } 156 largeFile.delete(); 157 } 158 } 159} 160