1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 /** 18 * @author Elena Semukhina 19 * @version $Revision$ 20 */ 21 22 package libcore.java.math; 23 24 import java.math.BigDecimal; 25 import java.math.BigInteger; 26 import java.math.MathContext; 27 import java.math.RoundingMode; 28 import junit.framework.TestCase; 29 30 public class OldBigDecimalCompareTest extends TestCase { 31 32 public void testAbsMathContextNeg() { 33 String a = "-123809648392384754573567356745735.63567890295784902768787678287E+21"; 34 BigDecimal aNumber = new BigDecimal(a); 35 MathContext mc = new MathContext(34, RoundingMode.UP); 36 assertEquals("incorrect value", "1.238096483923847545735673567457357E+53", aNumber.abs(mc).toString()); 37 38 mc = new MathContext(34, RoundingMode.DOWN); 39 assertEquals("incorrect value", "1.238096483923847545735673567457356E+53", aNumber.abs(mc).toString()); 40 41 mc = new MathContext(34, RoundingMode.FLOOR); 42 assertEquals("incorrect value", "1.238096483923847545735673567457356E+53", aNumber.abs(mc).toString()); 43 44 mc = new MathContext(34, RoundingMode.CEILING); 45 assertEquals("incorrect value", "1.238096483923847545735673567457357E+53", aNumber.abs(mc).toString()); 46 47 mc = new MathContext(34, RoundingMode.UNNECESSARY); 48 try { 49 aNumber.abs(mc); 50 fail("No ArithmeticException for RoundingMode.UNNECESSARY"); 51 } catch (ArithmeticException expected) { 52 } 53 } 54 55 public void testNegateMathContextPositive() { 56 String a = "92948782094488478231212478987482988429808779810457634781384756794987"; 57 MathContext mc = new MathContext(37, RoundingMode.FLOOR); 58 BigDecimal aNumber = new BigDecimal(new BigInteger(a), 41); 59 BigDecimal res = aNumber.negate(mc); 60 assertEquals("incorrect value", "-929487820944884782312124789.8748298843", res.toString()); 61 assertEquals("incorrect scale", 10, res.scale()); 62 } 63 } 64
