/*
* Copyright (C) 2008 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 libcore.java.util.zip;
import java.io.File;
import java.io.FilenameFilter;
import java.io.InputStream;
import java.security.cert.Certificate;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.Random;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import junit.framework.TestCase;
public final class OldAndroidZipStressTest extends TestCase {
/**
* JarEntry.getCertificates() is really slow. http://b/1046174
*/
public void checkJarCertificates(File file) throws Exception {
JarFile jarFile = new JarFile(file);
JarEntry je = jarFile.getJarEntry("AndroidManifest.xml");
byte[] readBuffer = new byte[1024];
long t0 = System.currentTimeMillis();
// We must read the stream for the JarEntry to retrieve its certificates.
InputStream is = jarFile.getInputStream(je);
while (is.read(readBuffer, 0, readBuffer.length) != -1) {
}
is.close();
Certificate[] certs = je != null ? je.getCertificates() : null;
long t1 = System.currentTimeMillis();
System.out.println("loadCertificates() took " + (t1 - t0) + " ms");
if (certs == null) {
System.out.println("We have no certificates");
} else {
System.out.println("We have " + certs.length + " certificates");
}
}
private File[] getFiles() {
File[] result = new File("/system/app").listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".apk");
}
});
return result != null ? result : new File[0];
}
public void testJarCertificates() throws Exception {
for (File file : getFiles()) {
checkJarCertificates(file);
}
}
// Boot-time package scan is slow. Not expected to fail. Please see log if
// you are interested in the results. http://b/1212257
public void testZipStressManifest() throws Exception {
long time0 = System.currentTimeMillis();
byte[] buffer = new byte[512];
for (File file : getFiles()) {
System.out.println("ZIP stress test processing " + file + "...");
ZipFile zip = new ZipFile(file);
ZipEntry entry = zip.getEntry("AndroidManifest.xml");
InputStream stream = zip.getInputStream(entry);
int j = stream.read(buffer);
while (j != -1) {
j = stream.read(buffer);
}
stream.close();
}
long time1 = System.currentTimeMillis();
System.out.println("ZIP stress test finished, time was " + (time1- time0) + "ms");
}
public void testZipStressAllFiles() throws Exception {
long time0 = System.currentTimeMillis();
byte[] buffer = new byte[512];
for (File file : getFiles()) {
System.out.println("ZIP stress test processing " + file + "...");
ZipFile zip = new ZipFile(file);
Enumeration<? extends ZipEntry> entries = zip.entries();
while (entries.hasMoreElements()) {
InputStream stream = zip.getInputStream(entries.nextElement());
int j = stream.read(buffer);
while (j != -1) {
j = stream.read(buffer);
}
stream.close();
}
}
long time1 = System.currentTimeMillis();
System.out.println("ZIP stress test finished, time was " + (time1- time0) + "ms");
}
private void assertEquals(byte[] a, byte[] b) {
assertTrue(Arrays.equals(a, b));
}
/**
* Native memory allocated by Deflater in system_server. The fix reduced
* some internal ZLIB buffers in size, so this test is trying to execute a
* lot of deflating to ensure that things are still working properly.
* http://b/1185084
*/
public void testZipDeflateInflateStress() throws Exception {
final int DATA_SIZE = 16384;
Random random = new Random(42); // Seed makes test reproducible
// Outer loop selects "mode" of test.
for (int j = 1; j <= 2; j++) {
byte[] input = new byte[DATA_SIZE];
if (j == 1) {
// Totally random content
random.nextBytes(input);
} else {
// Random contents with longer repetitions
int pos = 0;
while (pos < input.length) {
byte what = (byte)random.nextInt(256);
int howMany = random.nextInt(32);
if (pos + howMany >= input.length) {
howMany = input.length - pos;
}
Arrays.fill(input, pos, pos + howMany, what);
pos += howMany;
}
}
// Inner loop tries all 9 compression levels.
for (int i = 1; i <= 9; i++) {
System.out.println("ZipDeflateInflateStress test (" + j + "," + i + ")...");
byte[] zipped = new byte[2 * DATA_SIZE]; // Just to make sure...
Deflater deflater = new Deflater(i);
deflater.setInput(input);
deflater.finish();
deflater.deflate(zipped);
deflater.end();
byte[] output = new byte[DATA_SIZE];
Inflater inflater = new Inflater();
inflater.setInput(zipped);
inflater.finished();
inflater.inflate(output);
inflater.end();
assertEquals(input, output);
}
}
}
}