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Diffstat (limited to 'harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalTest.java')
| -rw-r--r-- | harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalTest.java | 952 |
1 files changed, 952 insertions, 0 deletions
diff --git a/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalTest.java b/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalTest.java new file mode 100644 index 0000000..20e9237 --- /dev/null +++ b/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalTest.java @@ -0,0 +1,952 @@ +/* + * 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. + */ + +package org.apache.harmony.tests.java.math; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.math.BigDecimal; +import java.math.BigInteger; +import java.math.MathContext; +import java.math.RoundingMode; + + +public class BigDecimalTest extends junit.framework.TestCase { + BigInteger value = new BigInteger("12345908"); + + BigInteger value2 = new BigInteger("12334560000"); + + /** + * @tests java.math.BigDecimal#BigDecimal(java.math.BigInteger) + */ + public void test_ConstructorLjava_math_BigInteger() { + BigDecimal big = new BigDecimal(value); + assertTrue("the BigDecimal value is not initialized properly", big + .unscaledValue().equals(value) + && big.scale() == 0); + } + + /** + * @tests java.math.BigDecimal#BigDecimal(java.math.BigInteger, int) + */ + public void test_ConstructorLjava_math_BigIntegerI() { + BigDecimal big = new BigDecimal(value2, 5); + assertTrue("the BigDecimal value is not initialized properly", big + .unscaledValue().equals(value2) + && big.scale() == 5); + assertTrue("the BigDecimal value is not represented properly", big + .toString().equals("123345.60000")); + } + + /** + * @tests java.math.BigDecimal#BigDecimal(double) + */ + public void test_ConstructorD() { + BigDecimal big = new BigDecimal(123E04); + assertTrue( + "the BigDecimal value taking a double argument is not initialized properly", + big.toString().equals("1230000")); + big = new BigDecimal(1.2345E-12); + assertTrue("the double representation is not correct", big + .doubleValue() == 1.2345E-12); + big = new BigDecimal(-12345E-3); + assertTrue("the double representation is not correct", big + .doubleValue() == -12.345); + big = new BigDecimal(5.1234567897654321e138); + assertTrue("the double representation is not correct", big + .doubleValue() == 5.1234567897654321E138 + && big.scale() == 0); + big = new BigDecimal(0.1); + assertTrue( + "the double representation of 0.1 bigDecimal is not correct", + big.doubleValue() == 0.1); + big = new BigDecimal(0.00345); + assertTrue( + "the double representation of 0.00345 bigDecimal is not correct", + big.doubleValue() == 0.00345); + // regression test for HARMONY-2429 + big = new BigDecimal(-0.0); + assertTrue( + "the double representation of -0.0 bigDecimal is not correct", + big.scale() == 0); + } + + /** + * @tests java.math.BigDecimal#BigDecimal(java.lang.String) + */ + public void test_ConstructorLjava_lang_String() throws NumberFormatException { + BigDecimal big = new BigDecimal("345.23499600293850"); + assertTrue("the BigDecimal value is not initialized properly", big + .toString().equals("345.23499600293850") + && big.scale() == 14); + big = new BigDecimal("-12345"); + assertTrue("the BigDecimal value is not initialized properly", big + .toString().equals("-12345") + && big.scale() == 0); + big = new BigDecimal("123."); + assertTrue("the BigDecimal value is not initialized properly", big + .toString().equals("123") + && big.scale() == 0); + + new BigDecimal("1.234E02"); + } + + /** + * @tests java.math.BigDecimal#BigDecimal(java.lang.String) + */ + public void test_constructor_String_plus_exp() { + /* + * BigDecimal does not support a + sign in the exponent when converting + * from a String + */ + new BigDecimal(+23e-0); + new BigDecimal(-23e+0); + } + + /** + * @tests java.math.BigDecimal#BigDecimal(java.lang.String) + */ + public void test_constructor_String_empty() { + try { + new BigDecimal(""); + fail("NumberFormatException expected"); + } catch (NumberFormatException e) { + } + } + + /** + * @tests java.math.BigDecimal#BigDecimal(java.lang.String) + */ + public void test_constructor_String_plus_minus_exp() { + try { + new BigDecimal("+35e+-2"); + fail("NumberFormatException expected"); + } catch (NumberFormatException e) { + } + + try { + new BigDecimal("-35e-+2"); + fail("NumberFormatException expected"); + } catch (NumberFormatException e) { + } + } + + /** + * @tests java.math.BigDecimal#BigDecimal(char[]) + */ + public void test_constructor_CC_plus_minus_exp() { + try { + new BigDecimal("+35e+-2".toCharArray()); + fail("NumberFormatException expected"); + } catch (NumberFormatException e) { + } + + try { + new BigDecimal("-35e-+2".toCharArray()); + fail("NumberFormatException expected"); + } catch (NumberFormatException e) { + } + } + + /** + * @tests java.math.BigDecimal#abs() + */ + public void test_abs() { + BigDecimal big = new BigDecimal("-1234"); + BigDecimal bigabs = big.abs(); + assertTrue("the absolute value of -1234 is not 1234", bigabs.toString() + .equals("1234")); + big = new BigDecimal(new BigInteger("2345"), 2); + bigabs = big.abs(); + assertTrue("the absolute value of 23.45 is not 23.45", bigabs + .toString().equals("23.45")); + } + + /** + * @tests java.math.BigDecimal#add(java.math.BigDecimal) + */ + public void test_addLjava_math_BigDecimal() { + BigDecimal add1 = new BigDecimal("23.456"); + BigDecimal add2 = new BigDecimal("3849.235"); + BigDecimal sum = add1.add(add2); + assertTrue("the sum of 23.456 + 3849.235 is wrong", sum.unscaledValue() + .toString().equals("3872691") + && sum.scale() == 3); + assertTrue("the sum of 23.456 + 3849.235 is not printed correctly", sum + .toString().equals("3872.691")); + BigDecimal add3 = new BigDecimal(12.34E02D); + assertTrue("the sum of 23.456 + 12.34E02 is not printed correctly", + (add1.add(add3)).toString().equals("1257.456")); + } + + /** + * @tests java.math.BigDecimal#compareTo(java.math.BigDecimal) + */ + public void test_compareToLjava_math_BigDecimal() { + BigDecimal comp1 = new BigDecimal("1.00"); + BigDecimal comp2 = new BigDecimal(1.000000D); + assertTrue("1.00 and 1.000000 should be equal", + comp1.compareTo(comp2) == 0); + BigDecimal comp3 = new BigDecimal("1.02"); + assertTrue("1.02 should be bigger than 1.00", + comp3.compareTo(comp1) == 1); + BigDecimal comp4 = new BigDecimal(0.98D); + assertTrue("0.98 should be less than 1.00", + comp4.compareTo(comp1) == -1); + } + + /** + * @tests java.math.BigDecimal#divide(java.math.BigDecimal, int) + */ + public void test_divideLjava_math_BigDecimalI() { + BigDecimal divd1 = new BigDecimal(value, 2); + BigDecimal divd2 = new BigDecimal("2.335"); + BigDecimal divd3 = divd1.divide(divd2, BigDecimal.ROUND_UP); + assertTrue("123459.08/2.335 is not correct", divd3.toString().equals( + "52873.27") + && divd3.scale() == divd1.scale()); + assertTrue( + "the unscaledValue representation of 123459.08/2.335 is not correct", + divd3.unscaledValue().toString().equals("5287327")); + divd2 = new BigDecimal(123.4D); + divd3 = divd1.divide(divd2, BigDecimal.ROUND_DOWN); + assertTrue("123459.08/123.4 is not correct", divd3.toString().equals( + "1000.47") + && divd3.scale() == 2); + divd2 = new BigDecimal(000D); + + try { + divd1.divide(divd2, BigDecimal.ROUND_DOWN); + fail("divide by zero is not caught"); + } catch (ArithmeticException e) { + } + } + + /** + * @tests java.math.BigDecimal#divide(java.math.BigDecimal, int, int) + */ + public void test_divideLjava_math_BigDecimalII() { + BigDecimal divd1 = new BigDecimal(value2, 4); + BigDecimal divd2 = new BigDecimal("0.0023"); + BigDecimal divd3 = divd1.divide(divd2, 3, BigDecimal.ROUND_HALF_UP); + assertTrue("1233456/0.0023 is not correct", divd3.toString().equals( + "536285217.391") + && divd3.scale() == 3); + divd2 = new BigDecimal(1345.5E-02D); + divd3 = divd1.divide(divd2, 0, BigDecimal.ROUND_DOWN); + assertTrue( + "1233456/13.455 is not correct or does not have the correct scale", + divd3.toString().equals("91672") && divd3.scale() == 0); + divd2 = new BigDecimal(0000D); + + try { + divd1.divide(divd2, 4, BigDecimal.ROUND_DOWN); + fail("divide by zero is not caught"); + } catch (ArithmeticException e) { + } + } + + /** + * @tests java.math.BigDecimal#doubleValue() + */ + public void test_doubleValue() { + BigDecimal bigDB = new BigDecimal(-1.234E-112); +// Commenting out this part because it causes an endless loop (see HARMONY-319 and HARMONY-329) +// assertTrue( +// "the double representation of this BigDecimal is not correct", +// bigDB.doubleValue() == -1.234E-112); + bigDB = new BigDecimal(5.00E-324); + assertTrue("the double representation of bigDecimal is not correct", + bigDB.doubleValue() == 5.00E-324); + bigDB = new BigDecimal(1.79E308); + assertTrue("the double representation of bigDecimal is not correct", + bigDB.doubleValue() == 1.79E308 && bigDB.scale() == 0); + bigDB = new BigDecimal(-2.33E102); + assertTrue( + "the double representation of bigDecimal -2.33E102 is not correct", + bigDB.doubleValue() == -2.33E102 && bigDB.scale() == 0); + bigDB = new BigDecimal(Double.MAX_VALUE); + bigDB = bigDB.add(bigDB); + assertTrue( + "a + number out of the double range should return infinity", + bigDB.doubleValue() == Double.POSITIVE_INFINITY); + bigDB = new BigDecimal(-Double.MAX_VALUE); + bigDB = bigDB.add(bigDB); + assertTrue( + "a - number out of the double range should return neg infinity", + bigDB.doubleValue() == Double.NEGATIVE_INFINITY); + } + + /** + * @tests java.math.BigDecimal#equals(java.lang.Object) + */ + public void test_equalsLjava_lang_Object() { + BigDecimal equal1 = new BigDecimal(1.00D); + BigDecimal equal2 = new BigDecimal("1.0"); + assertFalse("1.00 and 1.0 should not be equal", + equal1.equals(equal2)); + equal2 = new BigDecimal(1.01D); + assertFalse("1.00 and 1.01 should not be equal", + equal1.equals(equal2)); + equal2 = new BigDecimal("1.00"); + assertFalse("1.00D and 1.00 should not be equal", + equal1.equals(equal2)); + BigInteger val = new BigInteger("100"); + equal1 = new BigDecimal("1.00"); + equal2 = new BigDecimal(val, 2); + assertTrue("1.00(string) and 1.00(bigInteger) should be equal", equal1 + .equals(equal2)); + equal1 = new BigDecimal(100D); + equal2 = new BigDecimal("2.34576"); + assertFalse("100D and 2.34576 should not be equal", equal1 + .equals(equal2)); + assertFalse("bigDecimal 100D does not equal string 23415", equal1 + .equals("23415")); + } + + /** + * @tests java.math.BigDecimal#floatValue() + */ + public void test_floatValue() { + BigDecimal fl1 = new BigDecimal("234563782344567"); + assertTrue("the float representation of bigDecimal 234563782344567", + fl1.floatValue() == 234563782344567f); + BigDecimal fl2 = new BigDecimal(2.345E37); + assertTrue("the float representation of bigDecimal 2.345E37", fl2 + .floatValue() == 2.345E37F); + fl2 = new BigDecimal(-1.00E-44); + assertTrue("the float representation of bigDecimal -1.00E-44", fl2 + .floatValue() == -1.00E-44F); + fl2 = new BigDecimal(-3E12); + assertTrue("the float representation of bigDecimal -3E12", fl2 + .floatValue() == -3E12F); + fl2 = new BigDecimal(Double.MAX_VALUE); + assertTrue( + "A number can't be represented by float should return infinity", + fl2.floatValue() == Float.POSITIVE_INFINITY); + fl2 = new BigDecimal(-Double.MAX_VALUE); + assertTrue( + "A number can't be represented by float should return infinity", + fl2.floatValue() == Float.NEGATIVE_INFINITY); + + } + + /** + * @tests java.math.BigDecimal#hashCode() + */ + public void test_hashCode() { + // anything that is equal must have the same hashCode + BigDecimal hash = new BigDecimal("1.00"); + BigDecimal hash2 = new BigDecimal(1.00D); + assertTrue("the hashCode of 1.00 and 1.00D is equal", + hash.hashCode() != hash2.hashCode() && !hash.equals(hash2)); + hash2 = new BigDecimal("1.0"); + assertTrue("the hashCode of 1.0 and 1.00 is equal", + hash.hashCode() != hash2.hashCode() && !hash.equals(hash2)); + BigInteger val = new BigInteger("100"); + hash2 = new BigDecimal(val, 2); + assertTrue("hashCode of 1.00 and 1.00(bigInteger) is not equal", hash + .hashCode() == hash2.hashCode() + && hash.equals(hash2)); + hash = new BigDecimal(value, 2); + hash2 = new BigDecimal("-1233456.0000"); + assertTrue("hashCode of 123459.08 and -1233456.0000 is not equal", hash + .hashCode() != hash2.hashCode() + && !hash.equals(hash2)); + hash2 = new BigDecimal(value.negate(), 2); + assertTrue("hashCode of 123459.08 and -123459.08 is not equal", hash + .hashCode() != hash2.hashCode() + && !hash.equals(hash2)); + } + + /** + * @tests java.math.BigDecimal#intValue() + */ + public void test_intValue() { + BigDecimal int1 = new BigDecimal(value, 3); + assertTrue("the int value of 12345.908 is not 12345", + int1.intValue() == 12345); + int1 = new BigDecimal("1.99"); + assertTrue("the int value of 1.99 is not 1", int1.intValue() == 1); + int1 = new BigDecimal("23423419083091823091283933"); + // ran JDK and found representation for the above was -249268259 + assertTrue("the int value of 23423419083091823091283933 is wrong", int1 + .intValue() == -249268259); + int1 = new BigDecimal(-1235D); + assertTrue("the int value of -1235 is not -1235", + int1.intValue() == -1235); + } + + /** + * @tests java.math.BigDecimal#longValue() + */ + public void test_longValue() { + BigDecimal long1 = new BigDecimal(value2.negate(), 0); + assertTrue("the long value of 12334560000 is not 12334560000", long1 + .longValue() == -12334560000L); + long1 = new BigDecimal(-1345.348E-123D); + assertTrue("the long value of -1345.348E-123D is not zero", long1 + .longValue() == 0); + long1 = new BigDecimal("31323423423419083091823091283933"); + // ran JDK and found representation for the above was + // -5251313250005125155 + assertTrue( + "the long value of 31323423423419083091823091283933 is wrong", + long1.longValue() == -5251313250005125155L); + } + + /** + * @tests java.math.BigDecimal#max(java.math.BigDecimal) + */ + public void test_maxLjava_math_BigDecimal() { + BigDecimal max1 = new BigDecimal(value2, 1); + BigDecimal max2 = new BigDecimal(value2, 4); + assertTrue("1233456000.0 is not greater than 1233456", max1.max(max2) + .equals(max1)); + max1 = new BigDecimal(-1.224D); + max2 = new BigDecimal(-1.2245D); + assertTrue("-1.224 is not greater than -1.2245", max1.max(max2).equals( + max1)); + max1 = new BigDecimal(123E18); + max2 = new BigDecimal(123E19); + assertTrue("123E19 is the not the max", max1.max(max2).equals(max2)); + } + + /** + * @tests java.math.BigDecimal#min(java.math.BigDecimal) + */ + public void test_minLjava_math_BigDecimal() { + BigDecimal min1 = new BigDecimal(-12345.4D); + BigDecimal min2 = new BigDecimal(-12345.39D); + assertTrue("-12345.39 should have been returned", min1.min(min2) + .equals(min1)); + min1 = new BigDecimal(value2, 5); + min2 = new BigDecimal(value2, 0); + assertTrue("123345.6 should have been returned", min1.min(min2).equals( + min1)); + } + + /** + * @tests java.math.BigDecimal#movePointLeft(int) + */ + public void test_movePointLeftI() { + BigDecimal movePtLeft = new BigDecimal("123456265.34"); + BigDecimal alreadyMoved = movePtLeft.movePointLeft(5); + assertTrue("move point left 5 failed", alreadyMoved.scale() == 7 + && alreadyMoved.toString().equals("1234.5626534")); + movePtLeft = new BigDecimal(value2.negate(), 0); + alreadyMoved = movePtLeft.movePointLeft(12); + assertTrue("move point left 12 failed", alreadyMoved.scale() == 12 + && alreadyMoved.toString().equals("-0.012334560000")); + movePtLeft = new BigDecimal(123E18); + alreadyMoved = movePtLeft.movePointLeft(2); + assertTrue("move point left 2 failed", + alreadyMoved.scale() == movePtLeft.scale() + 2 + && alreadyMoved.doubleValue() == 1.23E18); + movePtLeft = new BigDecimal(1.123E-12); + alreadyMoved = movePtLeft.movePointLeft(3); + assertTrue("move point left 3 failed", + alreadyMoved.scale() == movePtLeft.scale() + 3 + && alreadyMoved.doubleValue() == 1.123E-15); + movePtLeft = new BigDecimal(value, 2); + alreadyMoved = movePtLeft.movePointLeft(-2); + assertTrue("move point left -2 failed", + alreadyMoved.scale() == movePtLeft.scale() - 2 + && alreadyMoved.toString().equals("12345908")); + } + + /** + * @tests java.math.BigDecimal#movePointRight(int) + */ + public void test_movePointRightI() { + BigDecimal movePtRight = new BigDecimal("-1.58796521458"); + BigDecimal alreadyMoved = movePtRight.movePointRight(8); + assertTrue("move point right 8 failed", alreadyMoved.scale() == 3 + && alreadyMoved.toString().equals("-158796521.458")); + movePtRight = new BigDecimal(value, 2); + alreadyMoved = movePtRight.movePointRight(4); + assertTrue("move point right 4 failed", alreadyMoved.scale() == 0 + && alreadyMoved.toString().equals("1234590800")); + movePtRight = new BigDecimal(134E12); + alreadyMoved = movePtRight.movePointRight(2); + assertTrue("move point right 2 failed", alreadyMoved.scale() == 0 + && alreadyMoved.toString().equals("13400000000000000")); + movePtRight = new BigDecimal(-3.4E-10); + alreadyMoved = movePtRight.movePointRight(5); + assertTrue("move point right 5 failed", + alreadyMoved.scale() == movePtRight.scale() - 5 + && alreadyMoved.doubleValue() == -0.000034); + alreadyMoved = alreadyMoved.movePointRight(-5); + assertTrue("move point right -5 failed", alreadyMoved + .equals(movePtRight)); + } + + /** + * @tests java.math.BigDecimal#multiply(java.math.BigDecimal) + */ + public void test_multiplyLjava_math_BigDecimal() { + BigDecimal multi1 = new BigDecimal(value, 5); + BigDecimal multi2 = new BigDecimal(2.345D); + BigDecimal result = multi1.multiply(multi2); + assertTrue("123.45908 * 2.345 is not correct: " + result, result + .toString().startsWith("289.51154260") + && result.scale() == multi1.scale() + multi2.scale()); + multi1 = new BigDecimal("34656"); + multi2 = new BigDecimal("-2"); + result = multi1.multiply(multi2); + assertTrue("34656 * 2 is not correct", result.toString().equals( + "-69312") + && result.scale() == 0); + multi1 = new BigDecimal(-2.345E-02); + multi2 = new BigDecimal(-134E130); + result = multi1.multiply(multi2); + assertTrue("-2.345E-02 * -134E130 is not correct " + result.doubleValue(), + result.doubleValue() == 3.1422999999999997E130 + && result.scale() == multi1.scale() + multi2.scale()); + multi1 = new BigDecimal("11235"); + multi2 = new BigDecimal("0"); + result = multi1.multiply(multi2); + assertTrue("11235 * 0 is not correct", result.doubleValue() == 0 + && result.scale() == 0); + multi1 = new BigDecimal("-0.00234"); + multi2 = new BigDecimal(13.4E10); + result = multi1.multiply(multi2); + assertTrue("-0.00234 * 13.4E10 is not correct", + result.doubleValue() == -313560000 + && result.scale() == multi1.scale() + multi2.scale()); + } + + /** + * @tests java.math.BigDecimal#negate() + */ + public void test_negate() { + BigDecimal negate1 = new BigDecimal(value2, 7); + assertTrue("the negate of 1233.4560000 is not -1233.4560000", negate1 + .negate().toString().equals("-1233.4560000")); + negate1 = new BigDecimal("-23465839"); + assertTrue("the negate of -23465839 is not 23465839", negate1.negate() + .toString().equals("23465839")); + negate1 = new BigDecimal(-3.456E6); + assertTrue("the negate of -3.456E6 is not 3.456E6", negate1.negate() + .negate().equals(negate1)); + } + + /** + * @tests java.math.BigDecimal#scale() + */ + public void test_scale() { + BigDecimal scale1 = new BigDecimal(value2, 8); + assertTrue("the scale of the number 123.34560000 is wrong", scale1 + .scale() == 8); + BigDecimal scale2 = new BigDecimal("29389."); + assertTrue("the scale of the number 29389. is wrong", + scale2.scale() == 0); + BigDecimal scale3 = new BigDecimal(3.374E13); + assertTrue("the scale of the number 3.374E13 is wrong", + scale3.scale() == 0); + BigDecimal scale4 = new BigDecimal("-3.45E-203"); + // note the scale is calculated as 15 digits of 345000.... + exponent - + // 1. -1 for the 3 + assertTrue("the scale of the number -3.45E-203 is wrong: " + + scale4.scale(), scale4.scale() == 205); + scale4 = new BigDecimal("-345.4E-200"); + assertTrue("the scale of the number -345.4E-200 is wrong", scale4 + .scale() == 201); + } + + /** + * @tests java.math.BigDecimal#setScale(int) + */ + public void test_setScaleI() { + // rounding mode defaults to zero + BigDecimal setScale1 = new BigDecimal(value, 3); + BigDecimal setScale2 = setScale1.setScale(5); + BigInteger setresult = new BigInteger("1234590800"); + assertTrue("the number 12345.908 after setting scale is wrong", + setScale2.unscaledValue().equals(setresult) + && setScale2.scale() == 5); + + try { + setScale2 = setScale1.setScale(2, BigDecimal.ROUND_UNNECESSARY); + fail("arithmetic Exception not caught as a result of loosing precision"); + } catch (ArithmeticException e) { + } + } + + /** + * @tests java.math.BigDecimal#setScale(int, int) + */ + public void test_setScaleII() { + BigDecimal setScale1 = new BigDecimal(2.323E102); + BigDecimal setScale2 = setScale1.setScale(4); + assertTrue("the number 2.323E102 after setting scale is wrong", + setScale2.scale() == 4); + assertTrue("the representation of the number 2.323E102 is wrong", + setScale2.doubleValue() == 2.323E102); + setScale1 = new BigDecimal("-1.253E-12"); + setScale2 = setScale1.setScale(17, BigDecimal.ROUND_CEILING); + assertTrue("the number -1.253E-12 after setting scale is wrong", + setScale2.scale() == 17); + assertTrue( + "the representation of the number -1.253E-12 after setting scale is wrong, " + setScale2.toString(), + setScale2.toString().equals("-1.25300E-12")); + + // testing rounding Mode ROUND_CEILING + setScale1 = new BigDecimal(value, 4); + setScale2 = setScale1.setScale(1, BigDecimal.ROUND_CEILING); + assertTrue( + "the number 1234.5908 after setting scale to 1/ROUND_CEILING is wrong", + setScale2.toString().equals("1234.6") && setScale2.scale() == 1); + BigDecimal setNeg = new BigDecimal(value.negate(), 4); + setScale2 = setNeg.setScale(1, BigDecimal.ROUND_CEILING); + assertTrue( + "the number -1234.5908 after setting scale to 1/ROUND_CEILING is wrong", + setScale2.toString().equals("-1234.5") + && setScale2.scale() == 1); + + // testing rounding Mode ROUND_DOWN + setScale2 = setNeg.setScale(1, BigDecimal.ROUND_DOWN); + assertTrue( + "the number -1234.5908 after setting scale to 1/ROUND_DOWN is wrong", + setScale2.toString().equals("-1234.5") + && setScale2.scale() == 1); + setScale1 = new BigDecimal(value, 4); + setScale2 = setScale1.setScale(1, BigDecimal.ROUND_DOWN); + assertTrue( + "the number 1234.5908 after setting scale to 1/ROUND_DOWN is wrong", + setScale2.toString().equals("1234.5") && setScale2.scale() == 1); + + // testing rounding Mode ROUND_FLOOR + setScale2 = setScale1.setScale(1, BigDecimal.ROUND_FLOOR); + assertTrue( + "the number 1234.5908 after setting scale to 1/ROUND_FLOOR is wrong", + setScale2.toString().equals("1234.5") && setScale2.scale() == 1); + setScale2 = setNeg.setScale(1, BigDecimal.ROUND_FLOOR); + assertTrue( + "the number -1234.5908 after setting scale to 1/ROUND_FLOOR is wrong", + setScale2.toString().equals("-1234.6") + && setScale2.scale() == 1); + + // testing rounding Mode ROUND_HALF_DOWN + setScale2 = setScale1.setScale(3, BigDecimal.ROUND_HALF_DOWN); + assertTrue( + "the number 1234.5908 after setting scale to 3/ROUND_HALF_DOWN is wrong", + setScale2.toString().equals("1234.591") + && setScale2.scale() == 3); + setScale1 = new BigDecimal(new BigInteger("12345000"), 5); + setScale2 = setScale1.setScale(1, BigDecimal.ROUND_HALF_DOWN); + assertTrue( + "the number 123.45908 after setting scale to 1/ROUND_HALF_DOWN is wrong", + setScale2.toString().equals("123.4") && setScale2.scale() == 1); + setScale2 = new BigDecimal("-1234.5000").setScale(0, + BigDecimal.ROUND_HALF_DOWN); + assertTrue( + "the number -1234.5908 after setting scale to 0/ROUND_HALF_DOWN is wrong", + setScale2.toString().equals("-1234") && setScale2.scale() == 0); + + // testing rounding Mode ROUND_HALF_EVEN + setScale1 = new BigDecimal(1.2345789D); + setScale2 = setScale1.setScale(4, BigDecimal.ROUND_HALF_EVEN); + assertTrue( + "the number 1.2345789 after setting scale to 4/ROUND_HALF_EVEN is wrong", + setScale2.doubleValue() == 1.2346D && setScale2.scale() == 4); + setNeg = new BigDecimal(-1.2335789D); + setScale2 = setNeg.setScale(2, BigDecimal.ROUND_HALF_EVEN); + assertTrue( + "the number -1.2335789 after setting scale to 2/ROUND_HALF_EVEN is wrong", + setScale2.doubleValue() == -1.23D && setScale2.scale() == 2); + setScale2 = new BigDecimal("1.2345000").setScale(3, + BigDecimal.ROUND_HALF_EVEN); + assertTrue( + "the number 1.2345789 after setting scale to 3/ROUND_HALF_EVEN is wrong", + setScale2.doubleValue() == 1.234D && setScale2.scale() == 3); + setScale2 = new BigDecimal("-1.2345000").setScale(3, + BigDecimal.ROUND_HALF_EVEN); + assertTrue( + "the number -1.2335789 after setting scale to 3/ROUND_HALF_EVEN is wrong", + setScale2.doubleValue() == -1.234D && setScale2.scale() == 3); + + // testing rounding Mode ROUND_HALF_UP + setScale1 = new BigDecimal("134567.34650"); + setScale2 = setScale1.setScale(3, BigDecimal.ROUND_HALF_UP); + assertTrue( + "the number 134567.34658 after setting scale to 3/ROUND_HALF_UP is wrong", + setScale2.toString().equals("134567.347") + && setScale2.scale() == 3); + setNeg = new BigDecimal("-1234.4567"); + setScale2 = setNeg.setScale(0, BigDecimal.ROUND_HALF_UP); + assertTrue( + "the number -1234.4567 after setting scale to 0/ROUND_HALF_UP is wrong", + setScale2.toString().equals("-1234") && setScale2.scale() == 0); + + // testing rounding Mode ROUND_UNNECESSARY + try { + setScale1.setScale(3, BigDecimal.ROUND_UNNECESSARY); + fail("arithmetic Exception not caught for round unnecessary"); + } catch (ArithmeticException e) { + } + + // testing rounding Mode ROUND_UP + setScale1 = new BigDecimal("100000.374"); + setScale2 = setScale1.setScale(2, BigDecimal.ROUND_UP); + assertTrue( + "the number 100000.374 after setting scale to 2/ROUND_UP is wrong", + setScale2.toString().equals("100000.38") + && setScale2.scale() == 2); + setNeg = new BigDecimal(-134.34589D); + setScale2 = setNeg.setScale(2, BigDecimal.ROUND_UP); + assertTrue( + "the number -134.34589 after setting scale to 2/ROUND_UP is wrong", + setScale2.doubleValue() == -134.35D && setScale2.scale() == 2); + + // testing invalid rounding modes + try { + setScale2 = setScale1.setScale(0, -123); + fail("IllegalArgumentException is not caught for wrong rounding mode"); + } catch (IllegalArgumentException e) { + } + } + + /** + * @tests java.math.BigDecimal#signum() + */ + public void test_signum() { + BigDecimal sign = new BigDecimal(123E-104); + assertTrue("123E-104 is not positive in signum()", sign.signum() == 1); + sign = new BigDecimal("-1234.3959"); + assertTrue("-1234.3959 is not negative in signum()", + sign.signum() == -1); + sign = new BigDecimal(000D); + assertTrue("000D is not zero in signum()", sign.signum() == 0); + } + + /** + * @tests java.math.BigDecimal#subtract(java.math.BigDecimal) + */ + public void test_subtractLjava_math_BigDecimal() { + BigDecimal sub1 = new BigDecimal("13948"); + BigDecimal sub2 = new BigDecimal("2839.489"); + BigDecimal result = sub1.subtract(sub2); + assertTrue("13948 - 2839.489 is wrong: " + result, result.toString() + .equals("11108.511") + && result.scale() == 3); + BigDecimal result2 = sub2.subtract(sub1); + assertTrue("2839.489 - 13948 is wrong", result2.toString().equals( + "-11108.511") + && result2.scale() == 3); + assertTrue("13948 - 2839.489 is not the negative of 2839.489 - 13948", + result.equals(result2.negate())); + sub1 = new BigDecimal(value, 1); + sub2 = new BigDecimal("0"); + result = sub1.subtract(sub2); + assertTrue("1234590.8 - 0 is wrong", result.equals(sub1)); + sub1 = new BigDecimal(1.234E-03); + sub2 = new BigDecimal(3.423E-10); + result = sub1.subtract(sub2); + assertTrue("1.234E-03 - 3.423E-10 is wrong, " + result.doubleValue(), + result.doubleValue() == 0.0012339996577); + sub1 = new BigDecimal(1234.0123); + sub2 = new BigDecimal(1234.0123000); + result = sub1.subtract(sub2); + assertTrue("1234.0123 - 1234.0123000 is wrong, " + result.doubleValue(), + result.doubleValue() == 0.0); + } + + /** + * @tests java.math.BigDecimal#toBigInteger() + */ + public void test_toBigInteger() { + BigDecimal sub1 = new BigDecimal("-29830.989"); + BigInteger result = sub1.toBigInteger(); + + assertTrue("the bigInteger equivalent of -29830.989 is wrong", result + .toString().equals("-29830")); + sub1 = new BigDecimal(-2837E10); + result = sub1.toBigInteger(); + assertTrue("the bigInteger equivalent of -2837E10 is wrong", result + .doubleValue() == -2837E10); + sub1 = new BigDecimal(2.349E-10); + result = sub1.toBigInteger(); + assertTrue("the bigInteger equivalent of 2.349E-10 is wrong", result + .equals(BigInteger.ZERO)); + sub1 = new BigDecimal(value2, 6); + result = sub1.toBigInteger(); + assertTrue("the bigInteger equivalent of 12334.560000 is wrong", result + .toString().equals("12334")); + } + + /** + * @tests java.math.BigDecimal#toString() + */ + public void test_toString() { + BigDecimal toString1 = new BigDecimal("1234.000"); + assertTrue("the toString representation of 1234.000 is wrong", + toString1.toString().equals("1234.000")); + toString1 = new BigDecimal("-123.4E-5"); + assertTrue("the toString representation of -123.4E-5 is wrong: " + + toString1, toString1.toString().equals("-0.001234")); + toString1 = new BigDecimal("-1.455E-20"); + assertTrue("the toString representation of -1.455E-20 is wrong", + toString1.toString().equals("-1.455E-20")); + toString1 = new BigDecimal(value2, 4); + assertTrue("the toString representation of 1233456.0000 is wrong", + toString1.toString().equals("1233456.0000")); + } + + /** + * @tests java.math.BigDecimal#unscaledValue() + */ + public void test_unscaledValue() { + BigDecimal unsVal = new BigDecimal("-2839485.000"); + assertTrue("the unscaledValue of -2839485.000 is wrong", unsVal + .unscaledValue().toString().equals("-2839485000")); + unsVal = new BigDecimal(123E10); + assertTrue("the unscaledValue of 123E10 is wrong", unsVal + .unscaledValue().toString().equals("1230000000000")); + unsVal = new BigDecimal("-4.56E-13"); + assertTrue("the unscaledValue of -4.56E-13 is wrong: " + + unsVal.unscaledValue(), unsVal.unscaledValue().toString() + .equals("-456")); + unsVal = new BigDecimal(value, 3); + assertTrue("the unscaledValue of 12345.908 is wrong", unsVal + .unscaledValue().toString().equals("12345908")); + + } + + /** + * @tests java.math.BigDecimal#valueOf(long) + */ + public void test_valueOfJ() { + BigDecimal valueOfL = BigDecimal.valueOf(9223372036854775806L); + assertTrue("the bigDecimal equivalent of 9223372036854775806 is wrong", + valueOfL.unscaledValue().toString().equals( + "9223372036854775806") + && valueOfL.scale() == 0); + assertTrue( + "the toString representation of 9223372036854775806 is wrong", + valueOfL.toString().equals("9223372036854775806")); + valueOfL = BigDecimal.valueOf(0L); + assertTrue("the bigDecimal equivalent of 0 is wrong", valueOfL + .unscaledValue().toString().equals("0") + && valueOfL.scale() == 0); + } + + /** + * @tests java.math.BigDecimal#valueOf(long, int) + */ + public void test_valueOfJI() { + BigDecimal valueOfJI = BigDecimal.valueOf(9223372036854775806L, 5); + assertTrue( + "the bigDecimal equivalent of 92233720368547.75806 is wrong", + valueOfJI.unscaledValue().toString().equals( + "9223372036854775806") + && valueOfJI.scale() == 5); + assertTrue( + "the toString representation of 9223372036854775806 is wrong", + valueOfJI.toString().equals("92233720368547.75806")); + valueOfJI = BigDecimal.valueOf(1234L, 8); + assertTrue( + "the bigDecimal equivalent of 92233720368547.75806 is wrong", + valueOfJI.unscaledValue().toString().equals("1234") + && valueOfJI.scale() == 8); + assertTrue( + "the toString representation of 9223372036854775806 is wrong", + valueOfJI.toString().equals("0.00001234")); + valueOfJI = BigDecimal.valueOf(0, 3); + assertTrue( + "the bigDecimal equivalent of 92233720368547.75806 is wrong", + valueOfJI.unscaledValue().toString().equals("0") + && valueOfJI.scale() == 3); + assertTrue( + "the toString representation of 9223372036854775806 is wrong", + valueOfJI.toString().equals("0.000")); + + } + + public void test_BigDecimal_serialization() throws Exception { + // Regression for HARMONY-1896 + char[] in = { '1', '5', '6', '7', '8', '7', '.', '0', '0' }; + BigDecimal bd = new BigDecimal(in, 0, 9); + + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + ObjectOutputStream oos = new ObjectOutputStream(bos); + oos.writeObject(bd); + + ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray()); + ObjectInputStream ois = new ObjectInputStream(bis); + BigDecimal nbd = (BigDecimal) ois.readObject(); + + assertEquals(bd.intValue(), nbd.intValue()); + assertEquals(bd.doubleValue(), nbd.doubleValue(), 0.0); + assertEquals(bd.toString(), nbd.toString()); + } + + /** + * @tests java.math.BigDecimal#stripTrailingZero(long) + */ + public void test_stripTrailingZero() { + BigDecimal sixhundredtest = new BigDecimal("600.0"); + assertTrue("stripTrailingZero failed for 600.0", + ((sixhundredtest.stripTrailingZeros()).scale() == -2) + ); + + /* Single digit, no trailing zero, odd number */ + BigDecimal notrailingzerotest = new BigDecimal("1"); + assertTrue("stripTrailingZero failed for 1", + ((notrailingzerotest.stripTrailingZeros()).scale() == 0) + ); + + // BEGIN android-changed: preserve RI compatibility, so BigDecimal.equals (which checks + // value *and* scale) continues to work. https://issues.apache.org/jira/browse/HARMONY-4623 + /* Zero */ + BigDecimal zerotest = new BigDecimal("0.0000"); + assertEquals("stripTrailingZero failed for 0.0000", 4, zerotest.stripTrailingZeros().scale()); + } + + public void testMathContextConstruction() { + String a = "-12380945E+61"; + BigDecimal aNumber = new BigDecimal(a); + int precision = 6; + RoundingMode rm = RoundingMode.HALF_DOWN; + MathContext mcIntRm = new MathContext(precision, rm); + MathContext mcStr = new MathContext("precision=6 roundingMode=HALF_DOWN"); + MathContext mcInt = new MathContext(precision); + BigDecimal res = aNumber.abs(mcInt); + assertEquals("MathContext Constructer with int precision failed", + res, + new BigDecimal("1.23809E+68")); + + assertEquals("Equal MathContexts are not Equal ", + mcIntRm, + mcStr); + + assertEquals("Different MathContext are reported as Equal ", + mcInt.equals(mcStr), + false); + + assertEquals("Equal MathContexts have different hashcodes ", + mcIntRm.hashCode(), + mcStr.hashCode()); + + assertEquals("MathContext.toString() returning incorrect value", + mcIntRm.toString(), + "precision=6 roundingMode=HALF_DOWN"); + } + +} |