1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package test.java.math.BigDecimal; 24 25 /* 26 * @test 27 * @bug 4916097 28 * @summary Some exponent over/undeflow tests for the pow method 29 * @author Joseph D. Darcy 30 */ 31 32 import java.math.*; 33 34 import org.testng.Assert; 35 import org.testng.annotations.Test; 36 37 // Android-changed: Replace error counting with asserts. 38 public class PowTests { 39 @Test zeroAndOneTests()40 public void zeroAndOneTests() { 41 BigDecimal[][] testCases = { 42 {BigDecimal.valueOf(0, Integer.MAX_VALUE), new BigDecimal(0), BigDecimal.valueOf(1, 0)}, 43 {BigDecimal.valueOf(0, Integer.MAX_VALUE), new BigDecimal(1), BigDecimal.valueOf(0, Integer.MAX_VALUE)}, 44 {BigDecimal.valueOf(0, Integer.MAX_VALUE), new BigDecimal(2), BigDecimal.valueOf(0, Integer.MAX_VALUE)}, 45 {BigDecimal.valueOf(0, Integer.MAX_VALUE), new BigDecimal(999999999), BigDecimal.valueOf(0, Integer.MAX_VALUE)}, 46 47 {BigDecimal.valueOf(0, Integer.MIN_VALUE), new BigDecimal(0), BigDecimal.valueOf(1, 0)}, 48 {BigDecimal.valueOf(0, Integer.MIN_VALUE), new BigDecimal(1), BigDecimal.valueOf(0, Integer.MIN_VALUE)}, 49 {BigDecimal.valueOf(0, Integer.MIN_VALUE), new BigDecimal(2), BigDecimal.valueOf(0, Integer.MIN_VALUE)}, 50 {BigDecimal.valueOf(0, Integer.MIN_VALUE), new BigDecimal(999999999), BigDecimal.valueOf(0, Integer.MIN_VALUE)}, 51 52 {BigDecimal.valueOf(1, Integer.MAX_VALUE), new BigDecimal(0), BigDecimal.valueOf(1, 0)}, 53 {BigDecimal.valueOf(1, Integer.MAX_VALUE), new BigDecimal(1), BigDecimal.valueOf(1, Integer.MAX_VALUE)}, 54 {BigDecimal.valueOf(1, Integer.MAX_VALUE), new BigDecimal(2), null}, // overflow 55 {BigDecimal.valueOf(1, Integer.MAX_VALUE), new BigDecimal(999999999), null}, // overflow 56 57 {BigDecimal.valueOf(1, Integer.MIN_VALUE), new BigDecimal(0), BigDecimal.valueOf(1, 0)}, 58 {BigDecimal.valueOf(1, Integer.MIN_VALUE), new BigDecimal(1), BigDecimal.valueOf(1, Integer.MIN_VALUE)}, 59 {BigDecimal.valueOf(1, Integer.MIN_VALUE), new BigDecimal(2), null}, // underflow 60 {BigDecimal.valueOf(1, Integer.MIN_VALUE), new BigDecimal(999999999), null}, // underflow 61 }; 62 63 for(BigDecimal[] testCase: testCases) { 64 int exponent = testCase[1].intValueExact(); 65 BigDecimal result; 66 67 try{ 68 result = testCase[0].pow(exponent); 69 Assert.assertEquals(result, testCase[2], "Unexpected result while raising " + 70 testCase[0] + 71 " to the " + exponent + " power; expected " + 72 testCase[2] + ", got " + result + "."); 73 } catch (ArithmeticException e) { 74 if (testCase[2] != null) { 75 Assert.fail("Unexpected exception while raising " + testCase[0] + 76 " to the " + exponent + " power."); 77 78 } 79 } 80 } 81 } 82 } 83