--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/math/BigInteger/largeMemory/SymmetricRangeTests.java Mon Oct 21 14:04:16 2019 +0800
@@ -0,0 +1,665 @@
+/*
+ * Copyright (c) 2013, 2019, 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 6910473 8021204 8021203 9005933 8074460 8078672
+ * @summary Test range of BigInteger values (use -Dseed=X to set PRNG seed)
+ * @library /test/lib
+ * @requires os.maxMemory > 8g
+ * @run main/timeout=180/othervm -Xmx8g SymmetricRangeTests
+ * @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;
+import jdk.test.lib.RandomFactory;
+
+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();
+ }
+}