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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.providers.downloads;
import static java.net.HttpURLConnection.HTTP_OK;
import android.app.DownloadManager;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Pair;
import com.google.android.collect.Lists;
import com.google.android.collect.Sets;
import com.google.mockwebserver.MockResponse;
import com.google.mockwebserver.SocketPolicy;
import java.util.List;
import java.util.Set;
/**
* Download manager tests that require multithreading.
*/
@LargeTest
public class ThreadingTest extends AbstractPublicApiTest {
public ThreadingTest() {
super(new FakeSystemFacade());
}
@Override
protected void tearDown() throws Exception {
Thread.sleep(50); // give threads a chance to finish
super.tearDown();
}
/**
* Test for race conditions when the service is flooded with startService() calls while running
* a download.
*/
public void testFloodServiceWithStarts() throws Exception {
enqueueResponse(buildResponse(HTTP_OK, FILE_CONTENT));
Download download = enqueueRequest(getRequest());
while (download.getStatus() != DownloadManager.STATUS_SUCCESSFUL) {
startService(null);
Thread.sleep(10);
}
}
public void testFilenameRace() throws Exception {
final List<Pair<Download, String>> downloads = Lists.newArrayList();
// Request dozen files at once with same name
for (int i = 0; i < 12; i++) {
final String body = "DOWNLOAD " + i + " CONTENTS";
enqueueResponse(new MockResponse().setResponseCode(HTTP_OK).setBody(body)
.setHeader("Content-type", "text/plain")
.setSocketPolicy(SocketPolicy.DISCONNECT_AT_END));
final Download d = enqueueRequest(getRequest());
downloads.add(Pair.create(d, body));
}
// Kick off downloads in parallel
final long startMillis = mSystemFacade.currentTimeMillis();
startService(null);
for (Pair<Download,String> d : downloads) {
d.first.waitForStatus(DownloadManager.STATUS_SUCCESSFUL, startMillis);
}
// Ensure that contents are clean and filenames unique
final Set<String> seenFiles = Sets.newHashSet();
for (Pair<Download, String> d : downloads) {
final String file = d.first.getStringField(DownloadManager.COLUMN_LOCAL_FILENAME);
if (!seenFiles.add(file)) {
fail("Another download already claimed " + file);
}
final String expected = d.second;
final String actual = d.first.getContents();
assertEquals(expected, actual);
}
}
}
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