1 /*

     2  * Copyright (c) 2017, 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  * @test

    25  * @bug 8190278

    26  * @summary checks the Scanner.useLocale() with java.locale.providers=SPI,

    27  *          COMPAT. It should not throw ClassCastException if any SPI is

    28  *          used and NumberFormat.getInstance() does not return a

    29  *          DecimalFormat object. Also, to test the behaviour of Scanner

    30  *          while scanning numbers in the format of Scanner's locale.

    31  * @modules jdk.localedata

    32  * @library provider

    33  * @build provider/module-info provider/test.NumberFormatProviderImpl

    34  *        provider/test.NumberFormatImpl

    35  * @run main/othervm -Djava.locale.providers=SPI,COMPAT UseLocaleWithProvider

    36  */

    37 

    38 import java.util.Locale;

    39 import java.util.Scanner;

    40 

    41 public class UseLocaleWithProvider {

    42 

    43     public static void main(String[] args) {

    44 

    45         try {

    46             testScannerUseLocale("-123.4", Locale.US, -123.4);

    47             testScannerUseLocale("-123,45", new Locale("fi", "FI"), -123.45);

    48             testScannerUseLocale("334,65", Locale.FRENCH, 334.65);

    49             testScannerUseLocale("4.334,65", Locale.GERMAN, 4334.65);

    50         } catch (ClassCastException ex) {

    51             throw new RuntimeException("[FAILED: With" +

    52                     " java.locale.providers=SPI,COMPAT, Scanner.useLocale()" +

    53                     " shouldn't throw ClassCastException]");

    54         }

    55     }

    56 

    57     private static void testScannerUseLocale(String number, Locale locale,

    58                                              Number actual) {

    59         Scanner sc = new Scanner(number).useLocale(locale);

    60         if (!sc.hasNextFloat() || sc.nextFloat() != actual.floatValue()) {

    61             throw new RuntimeException("[FAILED: With" +

    62                     " java.locale.providers=SPI,COMPAT, Scanner" +

    63                     ".hasNextFloat() or Scanner.nextFloat() is unable to" +

    64                     " scan the given number: " + number + ", in the given" +

    65                     " locale:" + locale + "]");

    66         }

    67     }

    68 }

    69