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 com.android.providers.downloads;
18
19import static java.net.HttpURLConnection.HTTP_OK;
20
21import android.app.DownloadManager;
22import android.test.suitebuilder.annotation.LargeTest;
23import android.util.Pair;
24
25import com.google.android.collect.Lists;
26import com.google.android.collect.Sets;
27import com.google.mockwebserver.MockResponse;
28import com.google.mockwebserver.SocketPolicy;
29
30import java.util.HashSet;
31import java.util.List;
32import java.util.Set;
33
34/**
35 * Download manager tests that require multithreading.
36 */
37@LargeTest
38public class ThreadingTest extends AbstractPublicApiTest {
39    public ThreadingTest() {
40        super(new FakeSystemFacade());
41    }
42
43    @Override
44    protected void tearDown() throws Exception {
45        Thread.sleep(50); // give threads a chance to finish
46        super.tearDown();
47    }
48
49    public void testFilenameRace() throws Exception {
50        final List<Pair<Download, String>> downloads = Lists.newArrayList();
51        final HashSet<String> expectedBodies = Sets.newHashSet();
52
53        // Request dozen files at once with same name
54        for (int i = 0; i < 32; i++) {
55            final String body = "DOWNLOAD " + i + " CONTENTS";
56            enqueueResponse(new MockResponse().setResponseCode(HTTP_OK).setBody(body)
57                    .setHeader("Content-type", "text/plain")
58                    .setSocketPolicy(SocketPolicy.DISCONNECT_AT_END));
59
60            final Download d = enqueueRequest(getRequest());
61            downloads.add(Pair.create(d, body));
62            expectedBodies.add(body);
63            startDownload(d.mId);
64        }
65
66        final long startMillis = mSystemFacade.currentTimeMillis();
67        for (Pair<Download,String> d : downloads) {
68            d.first.waitForStatus(DownloadManager.STATUS_SUCCESSFUL, startMillis);
69        }
70
71        // Ensure that contents are clean and filenames unique
72        final Set<String> seenFiles = Sets.newHashSet();
73        final HashSet<String> actualBodies = Sets.newHashSet();
74
75        for (Pair<Download, String> d : downloads) {
76            final String file = d.first.getStringField(DownloadManager.COLUMN_LOCAL_FILENAME);
77            if (!seenFiles.add(file)) {
78                fail("Another download already claimed " + file);
79            }
80
81            final String expected = d.second;
82            final String actual = d.first.getContents();
83
84            actualBodies.add(actual);
85        }
86
87        assertEquals(expectedBodies, actualBodies);
88    }
89}
90