1 /*
   2  * Copyright (c) 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  * @test
  25  * @bug 8166884
  26  * @summary Checks the subsequent call to parse the same language ranges
  27  *          which must generate the same list of language ranges
  28  *          i.e. the priority list containing equivalents, as in the
  29  *          first call
  30  */
  31 
  32 import java.util.Arrays;
  33 import java.util.List;
  34 import java.util.Locale;
  35 import java.util.stream.Collectors;
  36 
  37 public class Bug8166994 {
  38 
  39     public static void main(String[] args) {
  40         List<String> list = Arrays.asList("ccq-aa", "ybd-aa", "rki-aa");
  41         String ranges = "ccq-aa";
  42         testParseConsistency(list, ranges);
  43 
  44         // consecutive call to check the language range parse consistency
  45         testParseConsistency(list, ranges);
  46 
  47         // another case with ranges consisting of multiple equivalents and
  48         // single equivalents
  49         list = Arrays.asList("gfx-xz", "oun-xz", "mwj-xz", "vaj-xz",
  50                 "taj-xy", "tsf-xy");
  51         ranges = "gfx-xz, taj-xy";
  52         testParseConsistency(list, ranges);
  53         // consecutive call to check the language range parse consistency
  54         testParseConsistency(list, ranges);
  55 
  56     }
  57 
  58     private static void testParseConsistency(List<String> list, String ranges) {
  59         List<String> priorityList = parseRanges(ranges);
  60         if (!list.equals(priorityList)) {
  61             throw new RuntimeException("Failed to parse the language range ["
  62                     + ranges + "], Expected: " + list + " Found: "
  63                     + priorityList);
  64         }
  65     }
  66 
  67     private static List<String> parseRanges(String s) {
  68         return Locale.LanguageRange.parse(s).stream()
  69                 .map(Locale.LanguageRange::getRange)
  70                 .collect(Collectors.toList());
  71     }
  72 
  73 }
  74