| package com.android.apksig.internal.apk; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.apksig.util.DataSource; |
| import com.android.apksig.util.DataSources; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public class ApkSigningBlockUtilsTest { |
| @Rule public TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| private static int BASE = 255; // Intentionally not power of 2 to test properly |
| |
| @Test |
| public void testMultithreadVersionMatchesSinglethreaded() throws Exception { |
| Set<ContentDigestAlgorithm> algos = new HashSet<>(Arrays |
| .asList(ContentDigestAlgorithm.CHUNKED_SHA512)); |
| Map<ContentDigestAlgorithm, byte[]> outputContentDigests = new HashMap<>(); |
| Map<ContentDigestAlgorithm, byte[]> outputContentDigestsMultithread = new HashMap<>(); |
| |
| byte[] part1 = new byte[80 * 1024 * 1024 + 12345]; |
| for (int i = 0; i < part1.length; ++i) { |
| part1[i] = (byte)(i % BASE); |
| } |
| |
| File dataFile = temporaryFolder.newFile("fake.apk"); |
| |
| try (FileOutputStream fos = new FileOutputStream(dataFile)) { |
| fos.write(part1); |
| } |
| RandomAccessFile raf = new RandomAccessFile(dataFile, "r"); |
| |
| byte[] part2 = new byte[1_500_000]; |
| for (int i = 0; i < part2.length; ++i) { |
| part2[i] = (byte)(i % BASE); |
| } |
| byte[] part3 = new byte[30_000]; |
| for (int i = 0; i < part3.length; ++i) { |
| part3[i] = (byte)(i % BASE); |
| } |
| |
| DataSource[] dataSource = { |
| DataSources.asDataSource(raf), |
| DataSources.asDataSource(ByteBuffer.wrap(part2)), |
| DataSources.asDataSource(ByteBuffer.wrap(part3)), |
| }; |
| |
| ApkSigningBlockUtils.computeOneMbChunkContentDigests( |
| algos, dataSource, outputContentDigests); |
| |
| ApkSigningBlockUtils.computeOneMbChunkContentDigestsMultithread( |
| algos, dataSource, outputContentDigestsMultithread); |
| |
| assertEquals(outputContentDigestsMultithread.keySet(), outputContentDigests.keySet()); |
| for (ContentDigestAlgorithm algo : outputContentDigests.keySet()) { |
| byte[] digest1 = outputContentDigestsMultithread.get(algo); |
| byte[] digest2 = outputContentDigests.get(algo); |
| assertArrayEquals(digest1, digest2); |
| } |
| } |
| } |