diff options
Diffstat (limited to 'library/test/src/androidx/multidex/ZipUtilTest.java')
| -rw-r--r-- | library/test/src/androidx/multidex/ZipUtilTest.java | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/library/test/src/androidx/multidex/ZipUtilTest.java b/library/test/src/androidx/multidex/ZipUtilTest.java new file mode 100644 index 0000000..39a59ac --- /dev/null +++ b/library/test/src/androidx/multidex/ZipUtilTest.java @@ -0,0 +1,172 @@ +/* + * Copyright (C) 2014 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 androidx.multidex; + +import androidx.multidex.ZipUtil.CentralDirectory; + +import org.junit.Assert; +import org.junit.BeforeClass; +import org.junit.Test; + +import java.io.EOFException; +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.io.RandomAccessFile; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.Map; +import java.util.zip.ZipEntry; +import java.util.zip.ZipException; +import java.util.zip.ZipFile; + +/** + * Tests of ZipUtil class. + * + * The test assumes that ANDROID_BUILD_TOP environment variable is defined and point to the top of a + * built android tree. This is the case when the console used for running the tests is setup for + * android tree compilation. + */ +public class ZipUtilTest { + private static final File zipFile = new File(System.getenv("ANDROID_BUILD_TOP"), + "out/target/common/obj/JAVA_LIBRARIES/android-support-multidex_intermediates/javalib.jar"); + @BeforeClass + public static void setupClass() throws ZipException, IOException { + // just verify the zip is valid + new ZipFile(zipFile).close(); + } + + @Test + public void testCrcDoNotCrash() throws IOException { + + long crc = + ZipUtil.getZipCrc(zipFile); + System.out.println("crc is " + crc); + + } + + @Test + public void testCrcRange() throws IOException { + RandomAccessFile raf = new RandomAccessFile(zipFile, "r"); + CentralDirectory dir = ZipUtil.findCentralDirectory(raf); + byte[] dirData = new byte[(int) dir.size]; + int length = dirData.length; + int off = 0; + raf.seek(dir.offset); + while (length > 0) { + int read = raf.read(dirData, off, length); + if (length == -1) { + throw new EOFException(); + } + length -= read; + off += read; + } + raf.close(); + ByteBuffer buffer = ByteBuffer.wrap(dirData); + Map<String, ZipEntry> toCheck = new HashMap<String, ZipEntry>(); + while (buffer.hasRemaining()) { + buffer = buffer.slice(); + buffer.order(ByteOrder.LITTLE_ENDIAN); + ZipEntry entry = ZipEntryReader.readEntry(buffer); + toCheck.put(entry.getName(), entry); + } + + ZipFile zip = new ZipFile(zipFile); + Assert.assertEquals(zip.size(), toCheck.size()); + Enumeration<? extends ZipEntry> ref = zip.entries(); + while (ref.hasMoreElements()) { + ZipEntry refEntry = ref.nextElement(); + ZipEntry checkEntry = toCheck.get(refEntry.getName()); + Assert.assertNotNull(checkEntry); + Assert.assertEquals(refEntry.getName(), checkEntry.getName()); + Assert.assertEquals(refEntry.getComment(), checkEntry.getComment()); + Assert.assertEquals(refEntry.getTime(), checkEntry.getTime()); + Assert.assertEquals(refEntry.getCrc(), checkEntry.getCrc()); + Assert.assertEquals(refEntry.getCompressedSize(), checkEntry.getCompressedSize()); + Assert.assertEquals(refEntry.getSize(), checkEntry.getSize()); + Assert.assertEquals(refEntry.getMethod(), checkEntry.getMethod()); + Assert.assertArrayEquals(refEntry.getExtra(), checkEntry.getExtra()); + } + zip.close(); + } + + @Test + public void testCrcValue() throws IOException { + ZipFile zip = new ZipFile(zipFile); + Enumeration<? extends ZipEntry> ref = zip.entries(); + byte[] buffer = new byte[0x2000]; + while (ref.hasMoreElements()) { + ZipEntry refEntry = ref.nextElement(); + if (refEntry.getSize() > 0) { + File tmp = File.createTempFile("ZipUtilTest", ".fakezip"); + InputStream in = zip.getInputStream(refEntry); + OutputStream out = new FileOutputStream(tmp); + int read = in.read(buffer); + while (read != -1) { + out.write(buffer, 0, read); + read = in.read(buffer); + } + in.close(); + out.close(); + RandomAccessFile raf = new RandomAccessFile(tmp, "r"); + CentralDirectory dir = new CentralDirectory(); + dir.offset = 0; + dir.size = raf.length(); + long crc = ZipUtil.computeCrcOfCentralDir(raf, dir); + Assert.assertEquals(refEntry.getCrc(), crc); + raf.close(); + tmp.delete(); + } + } + zip.close(); + } + @Test + public void testInvalidCrcValue() throws IOException { + ZipFile zip = new ZipFile(zipFile); + Enumeration<? extends ZipEntry> ref = zip.entries(); + byte[] buffer = new byte[0x2000]; + while (ref.hasMoreElements()) { + ZipEntry refEntry = ref.nextElement(); + if (refEntry.getSize() > 0) { + File tmp = File.createTempFile("ZipUtilTest", ".fakezip"); + InputStream in = zip.getInputStream(refEntry); + OutputStream out = new FileOutputStream(tmp); + int read = in.read(buffer); + while (read != -1) { + out.write(buffer, 0, read); + read = in.read(buffer); + } + in.close(); + out.close(); + RandomAccessFile raf = new RandomAccessFile(tmp, "r"); + CentralDirectory dir = new CentralDirectory(); + dir.offset = 0; + dir.size = raf.length() - 1; + long crc = ZipUtil.computeCrcOfCentralDir(raf, dir); + Assert.assertNotEquals(refEntry.getCrc(), crc); + raf.close(); + tmp.delete(); + } + } + zip.close(); + } + +} |