/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* @author Elena Semukhina
*/
package org.apache.harmony.tests.java.math;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.MathContext;
import java.math.RoundingMode;
import junit.framework.TestCase;
/**
* Class: java.math.BigDecimal
* Methods: constructors and fields
*/
public class BigDecimalConstructorsTest extends TestCase {
/**
* check ONE
*/
public void testFieldONE() {
String oneS = "1";
double oneD = 1.0;
assertEquals("incorrect string value", oneS, BigDecimal.ONE.toString());
assertEquals("incorrect double value", oneD, BigDecimal.ONE.doubleValue(), 0);
}
/**
* check TEN
*/
public void testFieldTEN() {
String oneS = "10";
double oneD = 10.0;
assertEquals("incorrect string value", oneS, BigDecimal.TEN.toString());
assertEquals("incorrect double value", oneD, BigDecimal.TEN.doubleValue(), 0);
}
/**
* check ZERO
*/
public void testFieldZERO() {
String oneS = "0";
double oneD = 0.0;
assertEquals("incorrect string value", oneS, BigDecimal.ZERO.toString());
assertEquals("incorrect double value", oneD, BigDecimal.ZERO.doubleValue(), 0);
}
/**
* new BigDecimal(BigInteger value)
*/
public void testConstrBI() {
String a = "1231212478987482988429808779810457634781384756794987";
BigInteger bA = new BigInteger(a);
BigDecimal aNumber = new BigDecimal(bA);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", 0, aNumber.scale());
try {
new BigDecimal((BigInteger) null);
fail("No NullPointerException");
} catch (NullPointerException e) {
//expected
}
}
/**
* new BigDecimal(BigInteger value, int scale)
*/
public void testConstrBIScale() {
String a = "1231212478987482988429808779810457634781384756794987";
BigInteger bA = new BigInteger(a);
int aScale = 10;
BigDecimal aNumber = new BigDecimal(bA, aScale);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(BigInteger value, MathContext)
*/
public void testConstrBigIntegerMathContext() {
String a = "1231212478987482988429808779810457634781384756794987";
BigInteger bA = new BigInteger(a);
int precision = 46;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "1231212478987482988429808779810457634781384757";
int resScale = -6;
BigDecimal result = new BigDecimal(bA, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(BigInteger value, int scale, MathContext)
*/
public void testConstrBigIntegerScaleMathContext() {
String a = "1231212478987482988429808779810457634781384756794987";
BigInteger bA = new BigInteger(a);
int aScale = 10;
int precision = 46;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "1231212478987482988429808779810457634781384757";
int resScale = 4;
BigDecimal result = new BigDecimal(bA, aScale, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(char[] value);
*/
public void testConstrChar() {
char value[] = {'-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
BigDecimal result = new BigDecimal(value);
String res = "-1.23804738E-419";
int resScale = 427;
assertEquals("incorrect value", res, result.toString());
assertEquals("incorrect scale", resScale, result.scale());
try {
// Regression for HARMONY-783
new BigDecimal(new char[] {});
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(char[] value, int offset, int len);
*/
public void testConstrCharIntInt() {
char value[] = {'-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
int offset = 3;
int len = 12;
BigDecimal result = new BigDecimal(value, offset, len);
String res = "3.804738E-40";
int resScale = 46;
assertEquals("incorrect value", res, result.toString());
assertEquals("incorrect scale", resScale, result.scale());
try {
// Regression for HARMONY-783
new BigDecimal(new char[] {}, 0, 0);
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(char[] value, int offset, int len, MathContext mc);
*/
public void testConstrCharIntIntMathContext() {
char value[] = {'-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
int offset = 3;
int len = 12;
int precision = 4;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
BigDecimal result = new BigDecimal(value, offset, len, mc);
String res = "3.805E-40";
int resScale = 43;
assertEquals("incorrect value", res, result.toString());
assertEquals("incorrect scale", resScale, result.scale());
try {
// Regression for HARMONY-783
new BigDecimal(new char[] {}, 0, 0, MathContext.DECIMAL32);
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(char[] value, int offset, int len, MathContext mc);
*/
public void testConstrCharIntIntMathContextException1() {
char value[] = {'-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
int offset = 3;
int len = 120;
int precision = 4;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
try {
new BigDecimal(value, offset, len, mc);
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(char[] value, int offset, int len, MathContext mc);
*/
public void testConstrCharIntIntMathContextException2() {
char value[] = {'-', '1', '2', '3', '8', '0', ',', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
int offset = 3;
int len = 120;
int precision = 4;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
try {
new BigDecimal(value, offset, len, mc);
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(char[] value, MathContext mc);
*/
public void testConstrCharMathContext() {
try {
// Regression for HARMONY-783
new BigDecimal(new char[] {}, MathContext.DECIMAL32);
fail("NumberFormatException has not been thrown");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(double value) when value is NaN
*/
public void testConstrDoubleNaN() {
double a = Double.NaN;
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(double value) when value is positive infinity
*/
public void testConstrDoublePosInfinity() {
double a = Double.POSITIVE_INFINITY;
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(double value) when value is positive infinity
*/
public void testConstrDoubleNegInfinity() {
double a = Double.NEGATIVE_INFINITY;
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(double value)
*/
public void testConstrDouble() {
double a = 732546982374982347892379283571094797.287346782359284756;
int aScale = 0;
BigInteger bA = new BigInteger("732546982374982285073458350476230656");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(double, MathContext)
*/
public void testConstrDoubleMathContext() {
double a = 732546982374982347892379283571094797.287346782359284756;
int precision = 21;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "732546982374982285074";
int resScale = -15;
BigDecimal result = new BigDecimal(a, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(0.1)
*/
public void testConstrDouble01() {
double a = 1.E-1;
int aScale = 55;
BigInteger bA = new BigInteger("1000000000000000055511151231257827021181583404541015625");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(0.555)
*/
public void testConstrDouble02() {
double a = 0.555;
int aScale = 53;
BigInteger bA = new BigInteger("55500000000000004884981308350688777863979339599609375");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(-0.1)
*/
public void testConstrDoubleMinus01() {
double a = -1.E-1;
int aScale = 55;
BigInteger bA = new BigInteger("-1000000000000000055511151231257827021181583404541015625");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(int value)
*/
public void testConstrInt() {
int a = 732546982;
String res = "732546982";
int resScale = 0;
BigDecimal result = new BigDecimal(a);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(int, MathContext)
*/
public void testConstrIntMathContext() {
int a = 732546982;
int precision = 21;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "732546982";
int resScale = 0;
BigDecimal result = new BigDecimal(a, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(long value)
*/
public void testConstrLong() {
long a = 4576578677732546982L;
String res = "4576578677732546982";
int resScale = 0;
BigDecimal result = new BigDecimal(a);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(long, MathContext)
*/
public void testConstrLongMathContext() {
long a = 4576578677732546982L;
int precision = 5;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "45766";
int resScale = -14;
BigDecimal result = new BigDecimal(a, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
/**
* new BigDecimal(double value) when value is denormalized
*/
public void testConstrDoubleDenormalized() {
double a = 2.274341322658976E-309;
int aScale = 1073;
BigInteger bA = new BigInteger("227434132265897633950269241702666687639731047124115603942986140264569528085692462493371029187342478828091760934014851133733918639492582043963243759464684978401240614084312038547315281016804838374623558434472007664427140169018817050565150914041833284370702366055678057809362286455237716100382057360123091641959140448783514464639706721250400288267372238950016114583259228262046633530468551311769574111763316146065958042194569102063373243372766692713192728878701004405568459288708477607744497502929764155046100964958011009313090462293046650352146796805866786767887226278836423536035611825593567576424943331337401071583562754098901412372708947790843318760718495117047155597276492717187936854356663665005157041552436478744491526494952982062613955349661409854888916015625");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value)
* when value is not a valid representation of BigDecimal.
*/
public void testConstrStringException() {
String a = "-238768.787678287a+10";
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {}
}
/**
* new BigDecimal(String value) when exponent is empty.
*/
public void testConstrStringExceptionEmptyExponent1() {
String a = "-238768.787678287e";
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(String value) when exponent is empty.
*/
public void testConstrStringExceptionEmptyExponent2() {
String a = "-238768.787678287e-";
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(String value) when exponent is greater than
* Integer.MAX_VALUE.
*/
public void testConstrStringExceptionExponentGreaterIntegerMax() {
String a = "-238768.787678287e214748364767876";
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(String value) when exponent is less than
* Integer.MIN_VALUE.
*/
public void testConstrStringExceptionExponentLessIntegerMin() {
String a = "-238768.787678287e-214748364767876";
try {
new BigDecimal(a);
fail("NumberFormatException has not been caught");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(String value)
* when exponent is Integer.MAX_VALUE.
*/
public void testConstrStringExponentIntegerMax() {
String a = "-238768.787678287e2147483647";
int aScale = -2147483638;
BigInteger bA = new BigInteger("-238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value)
* when exponent is Integer.MIN_VALUE.
*/
public void testConstrStringExponentIntegerMin() {
String a = ".238768e-2147483648";
try {
new BigDecimal(a);
fail("NumberFormatException expected");
} catch (NumberFormatException e) {
}
}
/**
* new BigDecimal(String value); value does not contain exponent
*/
public void testConstrStringWithoutExpPos1() {
String a = "732546982374982347892379283571094797.287346782359284756";
int aScale = 18;
BigInteger bA = new BigInteger("732546982374982347892379283571094797287346782359284756");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value does not contain exponent
*/
public void testConstrStringWithoutExpPos2() {
String a = "+732546982374982347892379283571094797.287346782359284756";
int aScale = 18;
BigInteger bA = new BigInteger("732546982374982347892379283571094797287346782359284756");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value does not contain exponent
*/
public void testConstrStringWithoutExpNeg() {
String a = "-732546982374982347892379283571094797.287346782359284756";
int aScale = 18;
BigInteger bA = new BigInteger("-732546982374982347892379283571094797287346782359284756");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value does not contain exponent
* and decimal point
*/
public void testConstrStringWithoutExpWithoutPoint() {
String a = "-732546982374982347892379283571094797287346782359284756";
int aScale = 0;
BigInteger bA = new BigInteger("-732546982374982347892379283571094797287346782359284756");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value contains exponent
* and does not contain decimal point
*/
public void testConstrStringWithExponentWithoutPoint1() {
String a = "-238768787678287e214";
int aScale = -214;
BigInteger bA = new BigInteger("-238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value contains exponent
* and does not contain decimal point
*/
public void testConstrStringWithExponentWithoutPoint2() {
String a = "-238768787678287e-214";
int aScale = 214;
BigInteger bA = new BigInteger("-238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value contains exponent
* and does not contain decimal point
*/
public void testConstrStringWithExponentWithoutPoint3() {
String a = "238768787678287e-214";
int aScale = 214;
BigInteger bA = new BigInteger("238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value contains exponent
* and does not contain decimal point
*/
public void testConstrStringWithExponentWithoutPoint4() {
String a = "238768787678287e+214";
int aScale = -214;
BigInteger bA = new BigInteger("238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value); value contains exponent
* and does not contain decimal point
*/
public void testConstrStringWithExponentWithoutPoint5() {
String a = "238768787678287E214";
int aScale = -214;
BigInteger bA = new BigInteger("238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value);
* value contains both exponent and decimal point
*/
public void testConstrStringWithExponentWithPoint1() {
String a = "23985439837984782435652424523876878.7678287e+214";
int aScale = -207;
BigInteger bA = new BigInteger("239854398379847824356524245238768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value);
* value contains both exponent and decimal point
*/
public void testConstrStringWithExponentWithPoint2() {
String a = "238096483923847545735673567457356356789029578490276878.7678287e-214";
int aScale = 221;
BigInteger bA = new BigInteger("2380964839238475457356735674573563567890295784902768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value);
* value contains both exponent and decimal point
*/
public void testConstrStringWithExponentWithPoint3() {
String a = "2380964839238475457356735674573563567890.295784902768787678287E+21";
int aScale = 0;
BigInteger bA = new BigInteger("2380964839238475457356735674573563567890295784902768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value);
* value contains both exponent and decimal point
*/
public void testConstrStringWithExponentWithPoint4() {
String a = "23809648392384754573567356745735635678.90295784902768787678287E+21";
int aScale = 2;
BigInteger bA = new BigInteger("2380964839238475457356735674573563567890295784902768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value);
* value contains both exponent and decimal point
*/
public void testConstrStringWithExponentWithPoint5() {
String a = "238096483923847545735673567457356356789029.5784902768787678287E+21";
int aScale = -2;
BigInteger bA = new BigInteger("2380964839238475457356735674573563567890295784902768787678287");
BigDecimal aNumber = new BigDecimal(a);
assertEquals("incorrect value", bA, aNumber.unscaledValue());
assertEquals("incorrect scale", aScale, aNumber.scale());
}
/**
* new BigDecimal(String value, MathContext)
*/
public void testConstrStringMathContext() {
String a = "-238768787678287e214";
int precision = 5;
RoundingMode rm = RoundingMode.CEILING;
MathContext mc = new MathContext(precision, rm);
String res = "-23876";
int resScale = -224;
BigDecimal result = new BigDecimal(a, mc);
assertEquals("incorrect value", res, result.unscaledValue().toString());
assertEquals("incorrect scale", resScale, result.scale());
}
}