311 lines
9.9 KiB
Java
311 lines
9.9 KiB
Java
/*
|
|
* Copyright (c) 2006, 2020, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/**
|
|
* @test
|
|
* @bug 4679743
|
|
* @summary Test basic functionality of DeflaterInputStream and InflaterOutputStream
|
|
* @key randomness
|
|
*/
|
|
|
|
import java.io.*;
|
|
import java.util.*;
|
|
import java.util.zip.*;
|
|
|
|
public class DeflateIn_InflateOut {
|
|
private static byte[] data = new byte[1024 * 1024];
|
|
|
|
private static ByteArrayInputStream bais;
|
|
private static DeflaterInputStream dis;
|
|
|
|
private static ByteArrayOutputStream baos;
|
|
private static InflaterOutputStream ios;
|
|
|
|
private static Inflater reset(byte[] dict) {
|
|
bais = new ByteArrayInputStream(data);
|
|
if (dict == null) {
|
|
dis = new DeflaterInputStream(bais);
|
|
} else {
|
|
Deflater def = new Deflater();
|
|
def.setDictionary(dict);
|
|
dis = new DeflaterInputStream(bais, def);
|
|
}
|
|
|
|
baos = new ByteArrayOutputStream();
|
|
if (dict == null) {
|
|
ios = new InflaterOutputStream(baos);
|
|
return null;
|
|
} else {
|
|
Inflater inf = new Inflater();
|
|
ios = new InflaterOutputStream(baos, inf);
|
|
return inf;
|
|
}
|
|
}
|
|
|
|
private static void reset() {
|
|
reset(null);
|
|
}
|
|
|
|
/** Check byte arrays read/write. */
|
|
private static void ArrayReadWrite() throws Throwable {
|
|
byte[] buf = new byte[512];
|
|
|
|
reset();
|
|
check(dis.available() == 1);
|
|
for (;;) {
|
|
int len = dis.read(buf, 0, buf.length);
|
|
if (len < 0) {
|
|
break;
|
|
} else {
|
|
ios.write(buf, 0, len);
|
|
}
|
|
}
|
|
check(dis.available() == 0);
|
|
ios.close();
|
|
check(Arrays.equals(data, baos.toByteArray()));
|
|
}
|
|
|
|
/** Check byte arrays read, single byte write */
|
|
private static void ArrayReadByteWrite() throws Throwable {
|
|
byte[] buf = new byte[512];
|
|
|
|
reset();
|
|
for (;;) {
|
|
int len = dis.read(buf, 0, buf.length);
|
|
if (len <= 0) {
|
|
break;
|
|
} else {
|
|
for (int i = 0; i < len; i++) {
|
|
byte x = (byte) (buf[i] & 0xff);
|
|
ios.write(x);
|
|
}
|
|
}
|
|
}
|
|
check(dis.available() == 0);
|
|
ios.close();
|
|
check(Arrays.equals(data, baos.toByteArray()));
|
|
}
|
|
|
|
/** Check single byte read, byte array write.
|
|
* <p>
|
|
* Note that this test relies on the vaule from DeflaterInputStream.read()
|
|
* to determine when to stop reading.
|
|
*/
|
|
private static void ByteReadArrayWrite() throws Throwable {
|
|
byte[] buf = new byte[8192];
|
|
int off = 0;
|
|
|
|
reset();
|
|
int datum = dis.read();
|
|
while (datum != -1) {
|
|
if (off == 8192) {
|
|
ios.write(buf, 0, off);
|
|
off = 0;
|
|
}
|
|
buf[off++] = (byte) (datum & 0xff);
|
|
datum = dis.read();
|
|
}
|
|
if (off > 0) {
|
|
ios.write(buf, 0, off);
|
|
}
|
|
ios.close();
|
|
check(Arrays.equals(data, baos.toByteArray()));
|
|
}
|
|
|
|
/** Check single byte read/write.
|
|
* <p>
|
|
* Note that this test relies on DeflaterInputStream.available() to
|
|
* determine when to stop reading.
|
|
*/
|
|
private static void ByteReadByteWrite() throws Throwable {
|
|
byte[] buf = new byte[512];
|
|
boolean reachEOF = false;
|
|
|
|
reset();
|
|
while (dis.available() == 1) {
|
|
int datum = dis.read();
|
|
if (datum == -1) {
|
|
reachEOF = true;
|
|
} else {
|
|
if (datum < 0 || datum > 255) {
|
|
fail("datum out of range: " + datum);
|
|
}
|
|
ios.write(datum);
|
|
}
|
|
}
|
|
dis.close();
|
|
ios.close();
|
|
check(data[0] == baos.toByteArray()[0]);
|
|
}
|
|
|
|
/** Check skip(). */
|
|
private static void SkipBytes() throws Throwable {
|
|
byte[] buf = new byte[512];
|
|
int numReadable = 0;
|
|
|
|
// Count number of bytes that are read
|
|
reset();
|
|
check(dis.available() == 1);
|
|
for (;;) {
|
|
int count = dis.read(buf, 0, buf.length);
|
|
if (count < 0) {
|
|
break;
|
|
} else {
|
|
numReadable += count;
|
|
}
|
|
}
|
|
check(dis.available() == 0);
|
|
|
|
// Verify that skipping the first several bytes works.
|
|
reset();
|
|
int numNotSkipped = 0;
|
|
int numSkipBytes = 2053; // arbitrarily chosen prime
|
|
check(dis.skip(numSkipBytes) == numSkipBytes);
|
|
for (int i = 0; ; i++) {
|
|
int count = dis.read(buf, 0, buf.length);
|
|
if (count < 0) {
|
|
break;
|
|
} else {
|
|
numNotSkipped += count;
|
|
}
|
|
}
|
|
check(numNotSkipped + numSkipBytes == numReadable);
|
|
|
|
// Verify that skipping some bytes mid-stream works.
|
|
reset();
|
|
numNotSkipped = 0;
|
|
numSkipBytes = 8887; // arbitrarily chosen prime
|
|
for (int i = 0; ; i++) {
|
|
if (i == 13) { // Arbitrarily chosen
|
|
check(dis.skip(numSkipBytes) == numSkipBytes);
|
|
} else {
|
|
int count = dis.read(buf, 0, buf.length);
|
|
if (count < 0) {
|
|
break;
|
|
} else {
|
|
numNotSkipped += count;
|
|
}
|
|
}
|
|
}
|
|
check(numNotSkipped + numSkipBytes == numReadable);
|
|
|
|
// Verify that skipping the last N bytes works.
|
|
reset();
|
|
numNotSkipped = 0;
|
|
numSkipBytes = 6449; // arbitrarily chosen prime
|
|
for (int i = 0; ; i++) {
|
|
if (numNotSkipped + numSkipBytes > numReadable) {
|
|
numSkipBytes = numReadable - numNotSkipped;
|
|
check(dis.skip(numSkipBytes) == numSkipBytes);
|
|
check(dis.read(buf, 0, buf.length) == -1);
|
|
check(dis.available() == 0);
|
|
} else {
|
|
int count = dis.read(buf, 0, buf.length);
|
|
if (count < 0) {
|
|
break;
|
|
} else {
|
|
numNotSkipped += count;
|
|
}
|
|
}
|
|
}
|
|
check(numNotSkipped + numSkipBytes == numReadable);
|
|
}
|
|
|
|
/** Check "needsDictionary()". */
|
|
private static void NeedsDictionary() throws Throwable {
|
|
byte[] dict = {1, 2, 3, 4};
|
|
Adler32 adler32 = new Adler32();
|
|
adler32.update(dict);
|
|
long checksum = adler32.getValue();
|
|
byte[] buf = new byte[512];
|
|
|
|
Inflater inf = reset(dict);
|
|
check(dis.available() == 1);
|
|
boolean dictSet = false;
|
|
for (;;) {
|
|
int len = dis.read(buf, 0, buf.length);
|
|
if (len < 0) {
|
|
break;
|
|
} else {
|
|
try {
|
|
ios.write(buf, 0, len);
|
|
if (dictSet == false) {
|
|
check(false, "Must throw ZipException without dictionary");
|
|
return;
|
|
}
|
|
} catch (ZipException ze) {
|
|
check(dictSet == false, "Dictonary must be set only once");
|
|
check(checksum == inf.getAdler(), "Incorrect dictionary");
|
|
inf.setDictionary(dict);
|
|
// After setting the dictionary, we have to flush the
|
|
// InflaterOutputStream now in order to consume all the
|
|
// pending input data from the last, failed call to "write()".
|
|
ios.flush();
|
|
dictSet = true;
|
|
}
|
|
}
|
|
}
|
|
check(dis.available() == 0);
|
|
ios.close();
|
|
check(Arrays.equals(data, baos.toByteArray()));
|
|
}
|
|
|
|
public static void realMain(String[] args) throws Throwable {
|
|
new Random(new Date().getTime()).nextBytes(data);
|
|
|
|
ArrayReadWrite();
|
|
|
|
ArrayReadByteWrite();
|
|
|
|
ByteReadArrayWrite();
|
|
|
|
ByteReadByteWrite();
|
|
|
|
SkipBytes();
|
|
|
|
NeedsDictionary();
|
|
}
|
|
|
|
//--------------------- Infrastructure ---------------------------
|
|
static volatile int passed = 0, failed = 0;
|
|
static void pass() {passed++;}
|
|
static void fail() { fail(null); }
|
|
static void fail(String msg) {
|
|
failed++;
|
|
if (msg != null) {
|
|
System.err.println(msg);
|
|
}
|
|
Thread.dumpStack();
|
|
}
|
|
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
|
|
static void check(boolean cond) {if (cond) pass(); else fail();}
|
|
static void check(boolean cond, String msg) {if (cond) pass(); else fail(msg);}
|
|
static void equal(Object x, Object y) {
|
|
if (x == null ? y == null : x.equals(y)) pass();
|
|
else fail(x + " not equal to " + y);}
|
|
public static void main(String[] args) throws Throwable {
|
|
try {realMain(args);} catch (Throwable t) {unexpected(t);}
|
|
System.out.println("\nPassed = " + passed + " failed = " + failed);
|
|
if (failed > 0) throw new AssertionError("Some tests failed");}
|
|
}
|