1/* 2 * Copyright (c) 2005, 2016, 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 24/** 25 * @test 26 * @bug 4092330 6246348 27 * @summary Tests for rounding mode in NumberFormat 28 */ 29 30import java.math.*; 31import java.text.*; 32 33public class NumberFormatRounding { 34 35 static final String AE = "ArithmeticException"; 36 37 static final double src[] = {5.5, 2.5, 1.6, 1.1, 1.0, -1.0, -1.1, -1.6, -2.5, -5.5, 38 5.501, -5.501, 5.500, -5.500, 1.001, -1.001, 4.501, -4.501, 4.500, -4.500}; 39 static final String up[] = {"6", "3", "2", "2", "1", "-1", "-2", "-2", "-3", "-6", 40 "6", "-6", "6", "-6", "2", "-2", "5", "-5", "5", "-5"}; 41 static final String down[] = {"5", "2", "1", "1", "1", "-1", "-1", "-1", "-2", "-5", 42 "5", "-5", "5", "-5", "1", "-1", "4", "-4", "4", "-4"}; 43 static final String ceiling[] = {"6", "3", "2", "2", "1", "-1", "-1", "-1", "-2", "-5", 44 "6", "-5", "6", "-5", "2", "-1", "5", "-4", "5", "-4"}; 45 static final String floor[] = {"5", "2", "1", "1", "1", "-1", "-2", "-2", "-3", "-6", 46 "5", "-6", "5", "-6", "1", "-2", "4", "-5", "4", "-5"}; 47 static final String half_up[] = {"6", "3", "2", "1", "1", "-1", "-1", "-2", "-3", "-6", 48 "6", "-6", "6", "-6", "1", "-1", "5", "-5", "5", "-5"}; 49 static final String half_down[] = {"5", "2", "2", "1", "1", "-1", "-1", "-2", "-2", "-5", 50 "6", "-6", "5", "-5", "1", "-1", "5", "-5", "4", "-4"}; 51 static final String half_even[] = {"6", "2", "2", "1", "1", "-1", "-1", "-2", "-2", "-6", 52 "6", "-6", "6", "-6", "1", "-1", "5", "-5", "4", "-4"}; 53 static final String unnecessary[] = {AE, AE, AE, AE, "1", "-1", AE, AE, AE, AE, 54 AE, AE, AE, AE, AE, AE, AE, AE, AE, AE}; 55 56 public static void main(String[] args) { 57 basicTest(); 58 59 roundTest(RoundingMode.UP, up); 60 roundTest(RoundingMode.DOWN, down); 61 roundTest(RoundingMode.CEILING, ceiling); 62 roundTest(RoundingMode.FLOOR, floor); 63 roundTest(RoundingMode.HALF_UP, half_up); 64 roundTest(RoundingMode.HALF_DOWN, half_down); 65 roundTest(RoundingMode.HALF_EVEN, half_even); 66 roundTest(RoundingMode.UNNECESSARY, unnecessary); 67 } 68 69 static void basicTest() { 70 NumberFormat nf = NumberFormat.getIntegerInstance(); 71 72 if (nf.getRoundingMode() != RoundingMode.HALF_EVEN) { 73 throw new RuntimeException("default rounding is not HALF_EVEN"); 74 } 75 76 try { 77 nf.setRoundingMode(null); 78 throw new RuntimeException( 79 "NullPointerException is not thrown by calling setRoundingMode(null)"); 80 } catch (NullPointerException npe) { 81 // continue testing 82 } 83 84 ChoiceFormat cf = new ChoiceFormat(""); 85 86 try { 87 cf.setRoundingMode(RoundingMode.HALF_EVEN); 88 throw new RuntimeException( 89 "UnsupportedOperationException is not thrown by calling setRoundingMode()"); 90 } catch (UnsupportedOperationException uoe) { 91 // continue testing 92 } 93 94 try { 95 cf.getRoundingMode(); 96 throw new RuntimeException( 97 "UnsupportedOperationException is not thrown by calling getRoundingMode()"); 98 } catch (UnsupportedOperationException uoe) { 99 // continue testing 100 } 101 } 102 103 static void roundTest(RoundingMode rm, String[] expected) { 104 NumberFormat nf = NumberFormat.getIntegerInstance(); 105 nf.setRoundingMode(rm); 106 107 if (nf.getRoundingMode() != rm) { 108 throw new RuntimeException("set rounding mode is not returned by get method"); 109 } 110 111 for (int i = 0; i < src.length; i ++) { 112 String result = null; 113 try { 114 result = nf.parse(nf.format(src[i])).toString(); 115 if (!result.equals(expected[i])) { 116 throw new RuntimeException("rounding test #"+i+" failed. mode: "+rm+" src: "+src[i]+" expected: "+expected[i]+" result: "+result); 117 } 118 } catch (ArithmeticException ae) { 119 if (expected[i].equals(AE)) { 120 continue; 121 } else { 122 result = AE; 123 throw new RuntimeException("rounding test #"+i+" failed. mode: "+rm+" src: "+src[i]+" expected: "+expected[i]+" result: "+result); 124 } 125 } catch (ParseException pe) { 126 throw new RuntimeException("ParseException ocurred.", pe); 127 } 128 } 129 } 130} 131