1 /* 2 * Copyright (c) 2018, 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 * @modules java.base/jdk.internal.math 27 */ 28 29 package test.jdk.internal.math; 30 31 import jdk.internal.math.FloatingDecimal; 32 33 public class ToString { 34 private static int fail = 0; 35 36 private static Throwable first; 37 main(String argv[])38 public static void main(String argv[]) { 39 test("10.0"); 40 test("1.0"); 41 test("0.1"); 42 test("0.01"); 43 test("0.001"); 44 test("1.0E-4"); 45 if (fail != 0) 46 throw new RuntimeException(fail + " failure(s), first", first); 47 } 48 test(String exp)49 private static void test(String exp) { 50 float c = Float.parseFloat(exp); 51 String got = FloatingDecimal.toJavaFormatString(c); 52 if (!got.equals(exp)) 53 fail("float '" + "': Expected '" + exp + "', got '" + got + "'"); 54 55 double d = Double.parseDouble(exp); 56 got = FloatingDecimal.toJavaFormatString(d); 57 if (!got.equals(exp)) 58 fail("double '" + "': Expected '" + exp + "', got '" + got + "'"); 59 } 60 fail(String s)61 private static void fail(String s) { 62 if (first == null) 63 setFirst(s); 64 System.err.println("FAILED: " + s); 65 fail++; 66 } 67 setFirst(String s)68 private static void setFirst(String s) { 69 try { 70 throw new RuntimeException(s); 71 } catch (RuntimeException x) { 72 first = x; 73 } 74 } 75 } 76