30e8183ee8
Add ability to initial the random number generator from the system property "seed" and print to STDOUT the seed value actually used. Reviewed-by: darcy
666 lines
26 KiB
Java
666 lines
26 KiB
Java
/*
|
|
* Copyright (c) 2013, 2015, 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
|
|
* @ignore This test has huge memory requirements
|
|
* @library /lib/testlibrary/
|
|
* @build jdk.testlibrary.*
|
|
* @run main/timeout=180/othervm -Xmx8g SymmetricRangeTests
|
|
* @bug 6910473 8021204 8021203 9005933 8074460 8078672
|
|
* @summary Test range of BigInteger values (use -Dseed=X to set PRNG seed)
|
|
* @author Dmitry Nadezhin
|
|
* @key randomness
|
|
*/
|
|
import java.io.ByteArrayInputStream;
|
|
import java.io.ByteArrayOutputStream;
|
|
import java.io.IOException;
|
|
import java.io.ObjectInputStream;
|
|
import java.io.ObjectOutputStream;
|
|
import java.util.Arrays;
|
|
import java.math.BigInteger;
|
|
import java.util.Random;
|
|
|
|
public class SymmetricRangeTests {
|
|
|
|
private static final BigInteger MAX_VALUE = makeMaxValue();
|
|
private static final BigInteger MIN_VALUE = MAX_VALUE.negate();
|
|
|
|
private static BigInteger makeMaxValue() {
|
|
byte[] ba = new byte[1 << 28];
|
|
Arrays.fill(ba, (byte) 0xFF);
|
|
ba[0] = (byte) 0x7F;
|
|
return new BigInteger(ba);
|
|
}
|
|
|
|
private static void check(String msg, BigInteger actual, BigInteger expected) {
|
|
if (!actual.equals(expected)) {
|
|
throw new RuntimeException(msg + ".bitLength()=" + actual.bitLength());
|
|
}
|
|
}
|
|
|
|
private static void check(String msg, double actual, double expected) {
|
|
if (actual != expected) {
|
|
throw new RuntimeException(msg + "=" + actual);
|
|
}
|
|
}
|
|
|
|
private static void check(String msg, float actual, float expected) {
|
|
if (actual != expected) {
|
|
throw new RuntimeException(msg + "=" + actual);
|
|
}
|
|
}
|
|
|
|
private static void check(String msg, long actual, long expected) {
|
|
if (actual != expected) {
|
|
throw new RuntimeException(msg + "=" + actual);
|
|
}
|
|
}
|
|
|
|
private static void check(String msg, int actual, int expected) {
|
|
if (actual != expected) {
|
|
throw new RuntimeException(msg + "=" + actual);
|
|
}
|
|
}
|
|
|
|
private static void testOverflowInMakePositive() {
|
|
System.out.println("Testing overflow in BigInteger.makePositive");
|
|
byte[] ba = new byte[Integer.MAX_VALUE - 2];
|
|
ba[0] = (byte) 0x80;
|
|
try {
|
|
BigInteger actual = new BigInteger(ba);
|
|
throw new RuntimeException("new BigInteger(ba).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testBug8021204() {
|
|
System.out.println("Testing Bug 8021204");
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.append('1');
|
|
for (int i = 0; i < (1 << 30) - 1; i++) {
|
|
sb.append('0');
|
|
}
|
|
sb.append('1');
|
|
String s = sb.toString();
|
|
sb = null;
|
|
try {
|
|
BigInteger actual = new BigInteger(s, 16);
|
|
throw new RuntimeException("new BigInteger(\"1000...001\").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testOverflowInBitSieve() {
|
|
System.out.println("Testing overflow in BitSieve.sieveSingle");
|
|
int bitLength = (5 << 27) - 1;
|
|
try {
|
|
Random random = RandomFactory.getRandom();
|
|
BigInteger actual = new BigInteger(bitLength, 0, random);
|
|
throw new RuntimeException("new BigInteger(bitLength, 0, null).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger bi = BigInteger.ONE.shiftLeft(bitLength - 1).subtract(BigInteger.ONE);
|
|
BigInteger actual = bi.nextProbablePrime();
|
|
throw new RuntimeException("bi.nextActualPrime().bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testAdd() {
|
|
System.out.println("Testing BigInteger.add");
|
|
try {
|
|
BigInteger actual = MAX_VALUE.add(BigInteger.ONE);
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.add(BigInteger.ONE).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testSubtract() {
|
|
System.out.println("Testing BigInteger.subtract");
|
|
try {
|
|
BigInteger actual = MIN_VALUE.subtract(BigInteger.ONE);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.subtract(BigInteger.ONE).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testMultiply() {
|
|
System.out.println("Testing BigInteger.multiply");
|
|
int py = 2000;
|
|
int px = Integer.MAX_VALUE - py;
|
|
BigInteger x = BigInteger.ONE.shiftLeft(px);
|
|
BigInteger y = BigInteger.ONE.shiftLeft(py);
|
|
try {
|
|
BigInteger actual = x.multiply(y);
|
|
throw new RuntimeException("(1 << " + px + " ) * (1 << " + py + ").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testDivide() {
|
|
System.out.println("Testing BigInteger.divide");
|
|
check("BigInteger.MIN_VALUE.divide(BigInteger.valueOf(-1))",
|
|
MIN_VALUE.divide(BigInteger.valueOf(-1)), MAX_VALUE);
|
|
check("BigInteger.MIN_VALUE.divide(BigInteger.ONE)",
|
|
MIN_VALUE.divide(BigInteger.ONE), MIN_VALUE);
|
|
}
|
|
|
|
private static void testDivideAndRemainder(String msg, BigInteger dividend, BigInteger divisor,
|
|
BigInteger expectedQuotent, BigInteger expectedRemainder) {
|
|
BigInteger[] qr = dividend.divideAndRemainder(divisor);
|
|
check(msg + "[0]", qr[0], expectedQuotent);
|
|
check(msg + "[1]", qr[1], expectedRemainder);
|
|
}
|
|
|
|
private static void testDivideAndRemainder() {
|
|
System.out.println("Testing BigInteger.divideAndRemainder");
|
|
testDivideAndRemainder("BigInteger.MIN_VALUE.divideAndRemainder(BigInteger.valueOf(-1))",
|
|
MIN_VALUE, BigInteger.valueOf(-1),
|
|
MAX_VALUE,
|
|
BigInteger.ZERO);
|
|
}
|
|
|
|
private static void testBug9005933() {
|
|
System.out.println("Testing Bug 9005933");
|
|
int dividendPow = 2147483646;
|
|
int divisorPow = 1568;
|
|
BigInteger dividend = BigInteger.ONE.shiftLeft(dividendPow);
|
|
BigInteger divisor = BigInteger.ONE.shiftLeft(divisorPow);
|
|
testDivideAndRemainder("(1 << " + dividendPow + ").divideAndRemainder(1 << " + divisorPow + ")",
|
|
dividend, divisor,
|
|
BigInteger.ONE.shiftLeft(dividendPow - divisorPow),
|
|
BigInteger.ZERO);
|
|
}
|
|
|
|
private static void testRemainder() {
|
|
System.out.println("Testing BigInteger.remainder");
|
|
check("BigInteger.MIN_VALUE.remainder(BigInteger.valueOf(-1))",
|
|
MIN_VALUE.remainder(BigInteger.valueOf(-1)), BigInteger.ZERO);
|
|
}
|
|
|
|
private static void testPow() {
|
|
System.out.println("Testing BigInteger.pow");
|
|
check("BigInteger.MIN_VALUE.pow(1)",
|
|
MIN_VALUE.pow(1), MIN_VALUE);
|
|
try {
|
|
BigInteger actual = BigInteger.valueOf(4).pow(Integer.MAX_VALUE);
|
|
throw new RuntimeException("BigInteger.valueOf(4).pow(Integer.MAX_VALUE).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testGcd() {
|
|
System.out.println("Testing BigInteger.gcd");
|
|
check("BigInteger.MIN_VALUE.gcd(BigInteger.MIN_VALUE)",
|
|
MIN_VALUE.gcd(MIN_VALUE), MAX_VALUE);
|
|
check("BigInteger.MIN_VALUE.gcd(BigInteger.ZERO)",
|
|
MIN_VALUE.gcd(BigInteger.ZERO), MAX_VALUE);
|
|
check("BigInteger.ZERO.gcd(MIN_VALUE)",
|
|
BigInteger.ZERO.gcd(MIN_VALUE), MAX_VALUE);
|
|
}
|
|
|
|
private static void testAbs() {
|
|
System.out.println("Testing BigInteger.abs");
|
|
check("BigInteger.MIN_VALUE.abs()",
|
|
MIN_VALUE.abs(), MAX_VALUE);
|
|
check("BigInteger.MAX_VALUE.abs()",
|
|
MAX_VALUE.abs(), MAX_VALUE);
|
|
}
|
|
|
|
private static void testNegate() {
|
|
System.out.println("Testing BigInteger.negate");
|
|
check("BigInteger.MIN_VALUE.negate()",
|
|
MIN_VALUE.negate(), MAX_VALUE);
|
|
check("BigInteger.MAX_VALUE.negate()",
|
|
MAX_VALUE.negate(), MIN_VALUE);
|
|
}
|
|
|
|
private static void testMod() {
|
|
System.out.println("Testing BigInteger.mod");
|
|
check("BigInteger.MIN_VALUE.mod(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.mod(MAX_VALUE), BigInteger.ZERO);
|
|
check("BigInteger.MAX_VALUE.mod(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.mod(MAX_VALUE), BigInteger.ZERO);
|
|
}
|
|
|
|
private static void testModPow() {
|
|
System.out.println("Testing BigInteger.modPow");
|
|
BigInteger x = BigInteger.valueOf(3);
|
|
BigInteger m = BigInteger.valueOf(-4).subtract(MIN_VALUE);
|
|
check("BigInteger.valueOf(3).modPow(BigInteger.ONE, m)",
|
|
x.modPow(BigInteger.ONE, m), x);
|
|
}
|
|
|
|
// slow test
|
|
private static void testModInverse() {
|
|
System.out.println("Testing BigInteger.modInverse");
|
|
check("BigInteger.MIN_VALUE.modInverse(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.modInverse(MAX_VALUE), MAX_VALUE.subtract(BigInteger.ONE));
|
|
}
|
|
|
|
private static void testShiftLeft() {
|
|
System.out.println("Testing BigInteger.shiftLeft");
|
|
try {
|
|
BigInteger actual = MIN_VALUE.shiftLeft(1);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.shiftLeft(1).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = MAX_VALUE.shiftLeft(1);
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.shiftLeft(1).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testShiftRight() {
|
|
System.out.println("Testing BigInteger.shiftRight");
|
|
try {
|
|
BigInteger actual = MIN_VALUE.shiftRight(-1);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.shiftRight(-1).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = MAX_VALUE.shiftRight(-1);
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.shiftRight(-1).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testAnd() {
|
|
System.out.println("Testing BigInteger.and");
|
|
check("BigInteger.MIN_VALUE.and(BigInteger.MIN_VALUE)",
|
|
MIN_VALUE.and(MIN_VALUE), MIN_VALUE);
|
|
check("BigInteger.MAX_VALUE.and(BigInteger.MAX_VALUE)",
|
|
MAX_VALUE.and(MAX_VALUE), MAX_VALUE);
|
|
check("BigInteger.MIN_VALUE.and(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.and(MAX_VALUE), BigInteger.ONE);
|
|
try {
|
|
BigInteger actual = MIN_VALUE.and(BigInteger.valueOf(-2));
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.and(-2)).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testOr() {
|
|
System.out.println("Testing BigInteger.or");
|
|
check("BigInteger.MIN_VALUE.or(BigInteger.MIN_VALUE)",
|
|
MIN_VALUE.or(MIN_VALUE), MIN_VALUE);
|
|
check("BigInteger.MAX_VALUE.or(BigInteger.MAX_VALUE)",
|
|
MAX_VALUE.or(MAX_VALUE), MAX_VALUE);
|
|
check("BigInteger.MIN_VALUE.and(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.or(MAX_VALUE), BigInteger.valueOf(-1));
|
|
}
|
|
|
|
private static void testXor() {
|
|
System.out.println("Testing BigInteger.xor");
|
|
check("BigInteger.MIN_VALUE.xor(BigInteger.MIN_VALUE)",
|
|
MIN_VALUE.xor(MIN_VALUE), BigInteger.ZERO);
|
|
check("BigInteger.MAX_VALUE.xor(BigInteger.MAX_VALUE)",
|
|
MAX_VALUE.xor(MAX_VALUE), BigInteger.ZERO);
|
|
check("BigInteger.MIN_VALUE.xor(BigInteger.MAX_VALUE)",
|
|
MIN_VALUE.xor(MAX_VALUE), BigInteger.valueOf(-2));
|
|
try {
|
|
BigInteger actual = MIN_VALUE.xor(BigInteger.ONE);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.xor(BigInteger.ONE)).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testNot() {
|
|
System.out.println("Testing BigInteger.not");
|
|
check("BigInteger.MIN_VALUE.not()",
|
|
MIN_VALUE.not(), MAX_VALUE.subtract(BigInteger.ONE));
|
|
try {
|
|
BigInteger actual = MAX_VALUE.not();
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.not()).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testSetBit() {
|
|
System.out.println("Testing BigInteger.setBit");
|
|
check("BigInteger.MIN_VALUE.setBit(" + Integer.MAX_VALUE + ")",
|
|
MIN_VALUE.setBit(Integer.MAX_VALUE), MIN_VALUE);
|
|
try {
|
|
BigInteger actual = MAX_VALUE.setBit(Integer.MAX_VALUE);
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.setBit(" + Integer.MAX_VALUE + ").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testClearBit() {
|
|
System.out.println("Testing BigInteger.clearBit");
|
|
check("BigInteger.MAX_VALUE.clearBit(" + Integer.MAX_VALUE + ")",
|
|
MAX_VALUE.clearBit(Integer.MAX_VALUE), MAX_VALUE);
|
|
try {
|
|
BigInteger actual = MIN_VALUE.clearBit(Integer.MAX_VALUE);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.clearBit(" + Integer.MAX_VALUE + ").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = MIN_VALUE.clearBit(0);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.clearBit(0).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testFlipBit() {
|
|
System.out.println("Testing BigInteger.flipBit");
|
|
try {
|
|
BigInteger actual = MIN_VALUE.flipBit(Integer.MAX_VALUE);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.flipBit(" + Integer.MAX_VALUE + ").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = MIN_VALUE.flipBit(0);
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.flipBit(0).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = MAX_VALUE.flipBit(Integer.MAX_VALUE);
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.flipBit(" + Integer.MAX_VALUE + ").bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testGetLowestSetBit() {
|
|
System.out.println("Testing BigInteger.getLowestSetBit");
|
|
check("BigInteger.MIN_VALUE.getLowestSetBit()",
|
|
MIN_VALUE.getLowestSetBit(), 0);
|
|
check("BigInteger.MAX_VALUE.getLowestSetBit()",
|
|
MAX_VALUE.getLowestSetBit(), 0);
|
|
}
|
|
|
|
private static void testBitLength() {
|
|
System.out.println("Testing BigInteger.bitLength");
|
|
check("BigInteger.MIN_NEXT.bitLength()",
|
|
MIN_VALUE.bitLength(), Integer.MAX_VALUE);
|
|
check("BigInteger.MAX_VALUE.bitLength()",
|
|
MAX_VALUE.bitLength(), Integer.MAX_VALUE);
|
|
}
|
|
|
|
private static void testBitCount() {
|
|
System.out.println("Testing BigInteger.bitCount");
|
|
check("BigInteger.MIN_VALUE.bitCount()",
|
|
MIN_VALUE.bitCount(), Integer.MAX_VALUE - 1);
|
|
check("BigInteger.MAX_VALUE.bitCount()",
|
|
MAX_VALUE.bitCount(), Integer.MAX_VALUE);
|
|
}
|
|
|
|
private static void testToString(String msg, int radix, BigInteger bi, int length, String startsWith, char c) {
|
|
String s = bi.toString(radix);
|
|
if (s.length() != length) {
|
|
throw new RuntimeException(msg + ".length=" + s.length());
|
|
}
|
|
if (!s.startsWith(startsWith)) {
|
|
throw new RuntimeException(msg + "[0]=" + s.substring(0, startsWith.length()));
|
|
}
|
|
for (int i = startsWith.length(); i < s.length(); i++) {
|
|
if (s.charAt(i) != c) {
|
|
throw new RuntimeException(msg + "[" + i + "]='" + s.charAt(i) + "'");
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void testToString() {
|
|
System.out.println("Testing BigInteger.toString");
|
|
testToString("BigInteger.MIN_VALUE.toString(16)=", 16,
|
|
BigInteger.valueOf(-1).shiftLeft(Integer.MAX_VALUE - 1),
|
|
(1 << 29) + 1, "-4", '0');
|
|
}
|
|
|
|
private static void testToByteArrayWithConstructor(String msg, BigInteger bi, int length, byte msb, byte b, byte lsb) {
|
|
byte[] ba = bi.toByteArray();
|
|
if (ba.length != length) {
|
|
throw new RuntimeException(msg + ".length=" + ba.length);
|
|
}
|
|
if (ba[0] != msb) {
|
|
throw new RuntimeException(msg + "[0]=" + ba[0]);
|
|
}
|
|
for (int i = 1; i < ba.length - 1; i++) {
|
|
if (ba[i] != b) {
|
|
throw new RuntimeException(msg + "[" + i + "]=" + ba[i]);
|
|
}
|
|
}
|
|
if (ba[ba.length - 1] != lsb) {
|
|
throw new RuntimeException(msg + "[" + (ba.length - 1) + "]=" + ba[ba.length - 1]);
|
|
}
|
|
BigInteger actual = new BigInteger(ba);
|
|
if (!actual.equals(bi)) {
|
|
throw new RuntimeException(msg + ".bitLength()=" + actual.bitLength());
|
|
}
|
|
}
|
|
|
|
private static void testToByteArrayWithConstructor() {
|
|
System.out.println("Testing BigInteger.toByteArray with constructor");
|
|
testToByteArrayWithConstructor("BigInteger.MIN_VALUE.toByteArray()",
|
|
MIN_VALUE, (1 << 28), (byte) 0x80, (byte) 0x00, (byte) 0x01);
|
|
testToByteArrayWithConstructor("BigInteger.MAX_VALUE.toByteArray()",
|
|
MAX_VALUE, (1 << 28), (byte) 0x7f, (byte) 0xff, (byte) 0xff);
|
|
|
|
byte[] ba = new byte[1 << 28];
|
|
ba[0] = (byte) 0x80;
|
|
try {
|
|
BigInteger actual = new BigInteger(-1, ba);
|
|
throw new RuntimeException("new BigInteger(-1, ba).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
try {
|
|
BigInteger actual = new BigInteger(1, ba);
|
|
throw new RuntimeException("new BigInteger(1, ba).bitLength()=" + actual.bitLength());
|
|
} catch (ArithmeticException e) {
|
|
// expected
|
|
}
|
|
}
|
|
|
|
private static void testIntValue() {
|
|
System.out.println("Testing BigInteger.intValue");
|
|
check("BigInteger.MIN_VALUE.intValue()",
|
|
MIN_VALUE.intValue(), 1);
|
|
check("BigInteger.MAX_VALUE.floatValue()",
|
|
MAX_VALUE.intValue(), -1);
|
|
}
|
|
|
|
private static void testLongValue() {
|
|
System.out.println("Testing BigInteger.longValue");
|
|
check("BigInteger.MIN_VALUE.longValue()",
|
|
MIN_VALUE.longValue(), 1L);
|
|
check("BigInteger.MAX_VALUE.longValue()",
|
|
MAX_VALUE.longValue(), -1L);
|
|
}
|
|
|
|
private static void testFloatValue() {
|
|
System.out.println("Testing BigInteger.floatValue, Bug 8021203");
|
|
check("BigInteger.MIN_VALUE_.floatValue()",
|
|
MIN_VALUE.floatValue(), Float.NEGATIVE_INFINITY);
|
|
check("BigInteger.MAX_VALUE.floatValue()",
|
|
MAX_VALUE.floatValue(), Float.POSITIVE_INFINITY);
|
|
}
|
|
|
|
private static void testDoubleValue() {
|
|
System.out.println("Testing BigInteger.doubleValue, Bug 8021203");
|
|
check("BigInteger.MIN_VALUE.doubleValue()",
|
|
MIN_VALUE.doubleValue(), Double.NEGATIVE_INFINITY);
|
|
check("BigInteger.MAX_VALUE.doubleValue()",
|
|
MAX_VALUE.doubleValue(), Double.POSITIVE_INFINITY);
|
|
}
|
|
|
|
private static void testSerialization(String msg, BigInteger bi) {
|
|
try {
|
|
ByteArrayOutputStream baOut = new ByteArrayOutputStream((1 << 28) + 1000);
|
|
ObjectOutputStream out = new ObjectOutputStream(baOut);
|
|
out.writeObject(bi);
|
|
out.close();
|
|
out = null;
|
|
byte[] ba = baOut.toByteArray();
|
|
baOut = null;
|
|
ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(ba));
|
|
BigInteger actual = (BigInteger) in.readObject();
|
|
if (!actual.equals(bi)) {
|
|
throw new RuntimeException(msg + ".bitLength()=" + actual.bitLength());
|
|
}
|
|
} catch (IOException | ClassNotFoundException e) {
|
|
throw new RuntimeException(msg + " raised exception ", e);
|
|
}
|
|
}
|
|
|
|
private static void testSerialization() {
|
|
System.out.println("Testing BigInteger serialization");
|
|
testSerialization("BigInteger.MIN_VALUE.intValue()",
|
|
MIN_VALUE);
|
|
testSerialization("BigInteger.MAX_VALUE.floatValue()",
|
|
MAX_VALUE);
|
|
}
|
|
|
|
private static void testLongValueExact() {
|
|
System.out.println("Testing BigInteger.longValueExact");
|
|
try {
|
|
long actual = MIN_VALUE.longValueExact();
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.longValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
try {
|
|
long actual = MAX_VALUE.longValueExact();
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.longValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
}
|
|
|
|
private static void testIntValueExact() {
|
|
System.out.println("Testing BigInteger.intValueExact");
|
|
try {
|
|
long actual = MIN_VALUE.intValueExact();
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.intValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
try {
|
|
long actual = MAX_VALUE.intValueExact();
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.intValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
}
|
|
|
|
private static void testShortValueExact() {
|
|
System.out.println("Testing BigInteger.shortValueExact");
|
|
try {
|
|
long actual = MIN_VALUE.shortValueExact();
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.shortValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
try {
|
|
long actual = MAX_VALUE.shortValueExact();
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.shortValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
}
|
|
|
|
private static void testByteValueExact() {
|
|
System.out.println("Testing BigInteger.byteValueExact");
|
|
try {
|
|
long actual = MIN_VALUE.byteValueExact();
|
|
throw new RuntimeException("BigInteger.MIN_VALUE.byteValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
try {
|
|
long actual = MAX_VALUE.byteValueExact();
|
|
throw new RuntimeException("BigInteger.MAX_VALUE.byteValueExact()= " + actual);
|
|
} catch (ArithmeticException e) {
|
|
// excpected
|
|
}
|
|
}
|
|
|
|
public static void main(String... args) {
|
|
testOverflowInMakePositive();
|
|
testBug8021204();
|
|
testOverflowInBitSieve();
|
|
testAdd();
|
|
testSubtract();
|
|
testMultiply();
|
|
testDivide();
|
|
testDivideAndRemainder();
|
|
testBug9005933();
|
|
testRemainder();
|
|
testPow();
|
|
testGcd();
|
|
testAbs();
|
|
testNegate();
|
|
testMod();
|
|
testModPow();
|
|
// testModInverse();
|
|
testShiftLeft();
|
|
testShiftRight();
|
|
testAnd();
|
|
testOr();
|
|
testXor();
|
|
testNot();
|
|
testSetBit();
|
|
testClearBit();
|
|
testFlipBit();
|
|
testGetLowestSetBit();
|
|
testBitLength();
|
|
testBitCount();
|
|
testToString();
|
|
testToByteArrayWithConstructor();
|
|
testIntValue();
|
|
testLongValue();
|
|
testFloatValue();
|
|
testDoubleValue();
|
|
testSerialization();
|
|
testLongValueExact();
|
|
testIntValueExact();
|
|
testShortValueExact();
|
|
testByteValueExact();
|
|
}
|
|
}
|