1 /*
   2  * Copyright (c) 2007, 2013, 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  */
  26 
  27 import java.text.*;
  28 import java.util.*;
  29 import sun.util.locale.provider.*;
  30 import sun.util.resources.*;
  31 
  32 import com.foo.FooNumberFormat;
  33 
  34 public class NumberFormatProviderTest extends ProviderTest {
  35 
  36     com.foo.NumberFormatProviderImpl nfp = new com.foo.NumberFormatProviderImpl();
  37     List<Locale> availloc = Arrays.asList(NumberFormat.getAvailableLocales());
  38     List<Locale> providerloc = Arrays.asList(nfp.getAvailableLocales());
  39     List<Locale> jreloc = Arrays.asList(LocaleProviderAdapter.forJRE().getAvailableLocales());
  40     List<Locale> jreimplloc = Arrays.asList(LocaleProviderAdapter.forJRE().getNumberFormatProvider().getAvailableLocales());
  41 
  42     public static void main(String[] s) {
  43         new NumberFormatProviderTest();
  44     }
  45 
  46     NumberFormatProviderTest() {
  47         availableLocalesTest();
  48         objectValidityTest();
  49         messageFormatTest();
  50     }
  51 
  52     void availableLocalesTest() {
  53         Set<Locale> localesFromAPI = new HashSet<>(availloc);
  54         Set<Locale> localesExpected = new HashSet<>(jreloc);
  55         localesExpected.addAll(providerloc);
  56         if (localesFromAPI.equals(localesExpected)) {
  57             System.out.println("availableLocalesTest passed.");
  58         } else {
  59             throw new RuntimeException("availableLocalesTest failed");
  60         }
  61     }
  62 
  63     void objectValidityTest() {
  64 
  65         for (Locale target: availloc) {
  66             boolean jreSupportsLocale = jreimplloc.contains(target);
  67 
  68             // JRE string arrays
  69             String[] jreNumberPatterns = null;
  70             if (jreSupportsLocale) {
  71                 jreNumberPatterns = LocaleProviderAdapter.forJRE().getLocaleResources(target).getNumberPatterns();
  72             }
  73 
  74             // result object
  75             String resultCur = getPattern(NumberFormat.getCurrencyInstance(target));
  76             String resultInt = getPattern(NumberFormat.getIntegerInstance(target));
  77             String resultNum = getPattern(NumberFormat.getNumberInstance(target));
  78             String resultPer = getPattern(NumberFormat.getPercentInstance(target));
  79 
  80             // provider's object (if any)
  81             String providersCur = null;
  82             String providersInt = null;
  83             String providersNum = null;
  84             String providersPer = null;
  85             if (providerloc.contains(target)) {
  86                 NumberFormat dfCur = nfp.getCurrencyInstance(target);
  87                 if (dfCur != null) {
  88                     providersCur = getPattern(dfCur);
  89                 }
  90                 NumberFormat dfInt = nfp.getIntegerInstance(target);
  91                 if (dfInt != null) {
  92                     providersInt = getPattern(dfInt);
  93                 }
  94                 NumberFormat dfNum = nfp.getNumberInstance(target);
  95                 if (dfNum != null) {
  96                     providersNum = getPattern(dfNum);
  97                 }
  98                 NumberFormat dfPer = nfp.getPercentInstance(target);
  99                 if (dfPer != null) {
 100                     providersPer = getPattern(dfPer);
 101                 }
 102             }
 103 
 104             // JRE's object (if any)
 105             // note that this totally depends on the current implementation
 106             String jresCur = null;
 107             String jresInt = null;
 108             String jresNum = null;
 109             String jresPer = null;
 110             if (jreSupportsLocale) {
 111                 DecimalFormat dfCur = new DecimalFormat(jreNumberPatterns[1],
 112                     DecimalFormatSymbols.getInstance(target));
 113                 if (dfCur != null) {
 114                     adjustForCurrencyDefaultFractionDigits(dfCur);
 115                     jresCur = dfCur.toPattern();
 116                 }
 117                 DecimalFormat dfInt = new DecimalFormat(jreNumberPatterns[0],
 118                     DecimalFormatSymbols.getInstance(target));
 119                 if (dfInt != null) {
 120                     dfInt.setMaximumFractionDigits(0);
 121                     dfInt.setDecimalSeparatorAlwaysShown(false);
 122                     dfInt.setParseIntegerOnly(true);
 123                     jresInt = dfInt.toPattern();
 124                 }
 125                 DecimalFormat dfNum = new DecimalFormat(jreNumberPatterns[0],
 126                     DecimalFormatSymbols.getInstance(target));
 127                 if (dfNum != null) {
 128                     jresNum = dfNum.toPattern();
 129                 }
 130                 DecimalFormat dfPer = new DecimalFormat(jreNumberPatterns[2],
 131                     DecimalFormatSymbols.getInstance(target));
 132                 if (dfPer != null) {
 133                     jresPer = dfPer.toPattern();
 134                 }
 135             }
 136 
 137             checkValidity(target, jresCur, providersCur, resultCur, jreSupportsLocale);
 138             checkValidity(target, jresInt, providersInt, resultInt, jreSupportsLocale);
 139             checkValidity(target, jresNum, providersNum, resultNum, jreSupportsLocale);
 140             checkValidity(target, jresPer, providersPer, resultPer, jreSupportsLocale);
 141         }
 142     }
 143 
 144     /**
 145      * Adjusts the minimum and maximum fraction digits to values that
 146      * are reasonable for the currency's default fraction digits.
 147      */
 148     void adjustForCurrencyDefaultFractionDigits(DecimalFormat df) {
 149         DecimalFormatSymbols dfs = df.getDecimalFormatSymbols();
 150         Currency currency = dfs.getCurrency();
 151         if (currency == null) {
 152             try {
 153                 currency = Currency.getInstance(dfs.getInternationalCurrencySymbol());
 154             } catch (IllegalArgumentException e) {
 155             }
 156         }
 157         if (currency != null) {
 158             int digits = currency.getDefaultFractionDigits();
 159             if (digits != -1) {
 160                 int oldMinDigits = df.getMinimumFractionDigits();
 161                 // Common patterns are "#.##", "#.00", "#".
 162                 // Try to adjust all of them in a reasonable way.
 163                 if (oldMinDigits == df.getMaximumFractionDigits()) {
 164                     df.setMinimumFractionDigits(digits);
 165                     df.setMaximumFractionDigits(digits);
 166                 } else {
 167                     df.setMinimumFractionDigits(Math.min(digits, oldMinDigits));
 168                     df.setMaximumFractionDigits(digits);
 169                 }
 170             }
 171         }
 172     }
 173 
 174     private static String getPattern(NumberFormat nf) {
 175         if (nf instanceof DecimalFormat) {
 176             return ((DecimalFormat)nf).toPattern();
 177         }
 178         if (nf instanceof FooNumberFormat) {
 179             return ((FooNumberFormat)nf).toPattern();
 180         }
 181         return null;
 182     }
 183 
 184     private static final String[] NUMBER_PATTERNS = {
 185         "num={0,number}",
 186         "num={0,number,currency}",
 187         "num={0,number,percent}",
 188         "num={0,number,integer}"
 189     };
 190 
 191     void messageFormatTest() {
 192         for (Locale target : providerloc) {
 193             for (String pattern : NUMBER_PATTERNS) {
 194                 MessageFormat mf = new MessageFormat(pattern, target);
 195                 String toPattern = mf.toPattern();
 196                 if (!pattern.equals(toPattern)) {
 197                     throw new RuntimeException("MessageFormat.toPattern: got '"
 198                                                + toPattern
 199                                                + "', expected '" + pattern + "'");
 200                 }
 201             }
 202         }
 203     }
 204 }