| /* |
| * 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 libcore.java.util.zip; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.Arrays; |
| import java.util.Random; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipInputStream; |
| import java.util.zip.ZipOutputStream; |
| import junit.framework.TestCase; |
| |
| public final class ZipOutputStreamTest extends TestCase { |
| public void testShortMessage() throws IOException { |
| byte[] data = "Hello World".getBytes("UTF-8"); |
| byte[] zipped = zip("short", data); |
| assertEquals(Arrays.toString(data), Arrays.toString(ZipInputStreamTest.unzip("short", zipped))); |
| } |
| |
| // http://b/3181430 --- a sign-extension bug on CRCs with the top bit set. |
| public void test3181430() throws IOException { |
| byte[] data = new byte[1]; // CRC32({ 0 }) == 0xd202ef8d |
| byte[] zipped = zip("z", data); |
| assertEquals(Arrays.toString(data), Arrays.toString(ZipInputStreamTest.unzip("z", zipped))); |
| } |
| |
| public void testLongMessage() throws IOException { |
| byte[] data = new byte[1024 * 1024]; |
| new Random().nextBytes(data); |
| assertTrue(Arrays.equals(data, ZipInputStreamTest.unzip("r", zip("r", data)))); |
| } |
| |
| public static byte[] zip(String name, byte[] bytes) throws IOException { |
| ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(); |
| ZipOutputStream zippedOut = new ZipOutputStream(bytesOut); |
| |
| ZipEntry entry = new ZipEntry(name); |
| zippedOut.putNextEntry(entry); |
| zippedOut.write(bytes); |
| zippedOut.closeEntry(); |
| |
| zippedOut.close(); |
| return bytesOut.toByteArray(); |
| } |
| } |