jdk-24/test/hotspot/jtreg/compiler/intrinsics/base64/TestBase64.java
Coleen Phillimore 0c37008917 8275662: remove test/lib/sun/hotspot
Reviewed-by: mseledtsov, sspitsyn, lmesnik
2022-07-11 13:07:03 +00:00

306 lines
13 KiB
Java

/*
* Copyright (c) 2018, 2022, 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
* @author Eric Wang <yiming.wang@oracle.com>
* @summary tests java.util.Base64
* @library /test/lib /
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
*
* @run main/othervm/timeout=600 -Xbatch -DcheckOutput=true
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
* compiler.intrinsics.base64.TestBase64
*/
package compiler.intrinsics.base64;
import java.io.BufferedReader;
import java.io.FileReader;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Base64;
import java.util.Base64.Decoder;
import java.util.Base64.Encoder;
import java.util.Objects;
import java.util.Random;
import java.util.Arrays;
import compiler.whitebox.CompilerWhiteBoxTest;
import jdk.test.whitebox.code.Compiler;
import jtreg.SkippedException;
import jdk.test.lib.Utils;
public class TestBase64 {
static boolean checkOutput = Boolean.getBoolean("checkOutput");
public static void main(String[] args) throws Exception {
if (!Compiler.isIntrinsicAvailable(CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION, "java.util.Base64$Encoder", "encodeBlock", byte[].class, int.class, int.class, byte[].class, int.class, boolean.class)) {
throw new SkippedException("Base64 intrinsic is not available");
}
int iters = (args.length > 0 ? Integer.valueOf(args[0]) : 5_000);
System.out.println(iters + " iterations");
initNonBase64Arrays();
warmup();
test0(FileType.ASCII, Base64Type.BASIC, Base64.getEncoder(), Base64.getDecoder(),"plain.txt", "baseEncode.txt", iters);
test0(FileType.ASCII, Base64Type.URLSAFE, Base64.getUrlEncoder(), Base64.getUrlDecoder(),"plain.txt", "urlEncode.txt", iters);
test0(FileType.ASCII, Base64Type.MIME, Base64.getMimeEncoder(), Base64.getMimeDecoder(),"plain.txt", "mimeEncode.txt", iters);
test0(FileType.HEXASCII, Base64Type.BASIC, Base64.getEncoder(), Base64.getDecoder(),"longLineHEX.txt", "longLineBaseEncode.txt", iters);
test0(FileType.HEXASCII, Base64Type.URLSAFE, Base64.getUrlEncoder(), Base64.getUrlDecoder(),"longLineHEX.txt", "longLineUrlEncode.txt", iters);
test0(FileType.HEXASCII, Base64Type.MIME, Base64.getMimeEncoder(), Base64.getMimeDecoder(),"longLineHEX.txt", "longLineMimeEncode.txt", iters);
}
private static void warmup() {
final int warmupCount = 20_000;
final int bufSize = 15308;
byte[] srcBuf = new byte[bufSize];
byte[] encBuf = new byte[((bufSize + 2) / 3) * 4];
byte[] decBuf = new byte[bufSize];
ran.nextBytes(srcBuf);
// This should be enough to get both encode and decode compiled on
// the highest tier.
for (int i = 0; i < warmupCount; i++) {
Base64.getEncoder().encode(srcBuf, encBuf);
Base64.getDecoder().decode(encBuf, decBuf);
}
}
public static void test0(FileType inputFileType, Base64Type type, Encoder encoder, Decoder decoder, String srcFile, String encodedFile, int numIterations) throws Exception {
String[] srcLns = Files.readAllLines(Paths.get(SRCDIR, srcFile), DEF_CHARSET)
.toArray(new String[0]);
String[] encodedLns = Files.readAllLines(Paths.get(SRCDIR, encodedFile), DEF_CHARSET)
.toArray(new String[0]);
for (int i = 0; i < numIterations; i++) {
int lns = 0;
for (String srcStr : srcLns) {
String encodedStr = null;
if (type != Base64Type.MIME) {
encodedStr = encodedLns[lns++];
} else {
while (lns < encodedLns.length) {
String s = encodedLns[lns++];
if (s.length() == 0)
break;
if (encodedStr != null) {
encodedStr += DEFAULT_CRLF + s;
} else {
encodedStr = s;
}
}
if (encodedStr == null && srcStr.length() == 0) {
encodedStr = "";
}
}
byte[] srcArr;
switch (inputFileType) {
case ASCII:
srcArr = srcStr.getBytes(DEF_CHARSET);
break;
case HEXASCII:
srcArr = Utils.toByteArray(srcStr);
break;
default:
throw new IllegalStateException();
}
byte[] encodedArr = encodedStr.getBytes(DEF_CHARSET);
ByteBuffer srcBuf = ByteBuffer.wrap(srcArr);
ByteBuffer encodedBuf = ByteBuffer.wrap(encodedArr);
byte[] resArr = new byte[encodedArr.length];
// test int encode(byte[], byte[])
int len = encoder.encode(srcArr, resArr);
assertEqual(len, encodedArr.length);
assertEqual(resArr, encodedArr);
// test byte[] encode(byte[])
resArr = encoder.encode(srcArr);
assertEqual(resArr, encodedArr);
// test ByteBuffer encode(ByteBuffer)
int limit = srcBuf.limit();
ByteBuffer resBuf = encoder.encode(srcBuf);
assertEqual(srcBuf.position(), limit);
assertEqual(srcBuf.limit(), limit);
assertEqual(resBuf, encodedBuf);
srcBuf.rewind(); // reset for next test
// test String encodeToString(byte[])
String resEncodeStr = encoder.encodeToString(srcArr);
assertEqual(resEncodeStr, encodedStr);
// test int decode(byte[], byte[])
// JDK-8273108: Test for output buffer overrun
resArr = new byte[srcArr.length + 2];
resArr[srcArr.length + 1] = (byte) 167;
len = decoder.decode(encodedArr, resArr);
assertEqual(len, srcArr.length);
assertEqual(Arrays.copyOfRange(resArr, 0, srcArr.length), srcArr);
assertEqual(resArr[srcArr.length + 1], (byte) 167);
// test byte[] decode(byte[])
resArr = decoder.decode(encodedArr);
assertEqual(resArr, srcArr);
// test that an illegal Base64 character is detected
if ((type != Base64Type.MIME) && (encodedArr.length > 0)) {
int bytePosToCorrupt = ran.nextInt(encodedArr.length);
byte orig = encodedArr[bytePosToCorrupt];
encodedArr[bytePosToCorrupt] = getBadBase64Char(type);
boolean caught = false;
try {
// resArr is already allocated
len = decoder.decode(encodedArr, resArr);
} catch (IllegalArgumentException e) {
caught = true;
}
if (!caught) {
throw new RuntimeException(String.format("Decoder did not catch an illegal base64 character: 0x%02x at position: %d in encoded buffer of length %d",
encodedArr[bytePosToCorrupt], bytePosToCorrupt, encodedArr.length));
}
encodedArr[bytePosToCorrupt] = orig;
}
// test ByteBuffer decode(ByteBuffer)
limit = encodedBuf.limit();
resBuf = decoder.decode(encodedBuf);
assertEqual(encodedBuf.position(), limit);
assertEqual(encodedBuf.limit(), limit);
assertEqual(resBuf, srcBuf);
encodedBuf.rewind(); // reset for next test
// test byte[] decode(String)
resArr = decoder.decode(encodedStr);
assertEqual(resArr, srcArr);
}
}
}
// Data type in the input file
enum FileType {
ASCII, HEXASCII
}
// helper
enum Base64Type {
BASIC, URLSAFE, MIME
}
private static final String SRCDIR = System.getProperty("test.src", "compiler/intrinsics/base64/");
private static final Charset DEF_CHARSET = StandardCharsets.US_ASCII;
private static final String DEF_EXCEPTION_MSG =
"Assertion failed! The result is not same as expected\n";
private static final String DEFAULT_CRLF = "\r\n";
private static final Random ran = new Random(1000); // Constant seed for repeatability
private static void assertEqual(Object result, Object expect) {
if (checkOutput) {
if (!Objects.deepEquals(result, expect)) {
String resultStr = result.toString();
String expectStr = expect.toString();
if (result instanceof byte[]) {
resultStr = new String((byte[]) result, DEF_CHARSET);
}
if (expect instanceof byte[]) {
expectStr = new String((byte[]) expect, DEF_CHARSET);
}
throw new RuntimeException(DEF_EXCEPTION_MSG +
" result: " + resultStr + " expected: " + expectStr);
}
}
}
// This array will contain all possible 8-bit values *except* those
// that are legal Base64 characters: A-Z a-z 0-9 + / =
private static final byte[] nonBase64 = new byte[256 - 65];
// This array will contain all possible 8-bit values *except* those
// that are legal URL-safe Base64 characters: A-Z a-z 0-9 - _ =
private static final byte[] nonBase64URL = new byte[256 - 65];
private static final byte[] legalBase64 = new byte[] {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
'+', '/', '=' };
private static final byte[] legalBase64URL = new byte[] {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
'-', '_', '=' };
private static final boolean contains(byte[] ary, byte b) {
for (int i = 0; i < ary.length; i++) {
if (ary[i] == b) {
return true;
}
}
return false;
}
private static final void initNonBase64Arrays() {
int i0 = 0, i1 = 0;
for (int val = 0; val < 256; val++) {
if (! contains(legalBase64, (byte)val)) {
nonBase64[i0++] = (byte)val;
}
if (! contains(legalBase64URL, (byte)val)) {
nonBase64URL[i1++] = (byte)val;
}
}
}
private static final byte getBadBase64Char(Base64Type b64Type) {
int ch = ran.nextInt(256 - 65); // 64 base64 characters, and one for the '=' padding character
switch (b64Type) {
case MIME:
case BASIC:
return nonBase64[ch];
case URLSAFE:
return nonBase64URL[ch];
default:
throw new InternalError("Internal test error: getBadBase64Char called with unknown Base64Type value");
}
}
}