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      1 /*
      2  *******************************************************************************
      3  * Copyright (C) 2008-2015, International Business Machines Corporation and    *
      4  * others. All Rights Reserved.                                                *
      5  *******************************************************************************
      6  */
      7 package com.ibm.icu.dev.test.localespi;
      8 
      9 import java.util.HashSet;
     10 import java.util.Locale;
     11 import java.util.Set;
     12 
     13 import com.ibm.icu.util.ULocale;
     14 import com.ibm.icu.util.ULocale.Builder;
     15 
     16 public class TestUtil {
     17 
     18     static final String ICU_VARIANT = "ICU4J";
     19     private static final String ICU_VARIANT_SUFFIX = "_ICU4J";
     20 
     21     public static Locale toICUExtendedLocale(Locale locale) {
     22         if (isICUExtendedLocale(locale)) {
     23             return locale;
     24         }
     25 
     26         String variant = locale.getVariant();
     27         variant = variant.length() == 0 ? ICU_VARIANT : variant + ICU_VARIANT_SUFFIX;
     28 
     29         // We once convert Locale to ULocale, then update variant
     30         // field. We could do this using Locale APIs, but have to
     31         // use a lot of reflections, because the test code should
     32         // also run on JRE 6.
     33         ULocale uloc = ULocale.forLocale(locale);
     34         if (uloc.getScript().length() == 0) {
     35             return new Locale(locale.getLanguage(), locale.getCountry(), variant);
     36         }
     37 
     38         // For preserving JDK Locale's script, we cannot use
     39         // the regular Locale constructor.
     40         ULocale modUloc = null;
     41         Builder locBld = new Builder();
     42         try {
     43             locBld.setLocale(uloc);
     44             locBld.setVariant(variant);
     45             modUloc = locBld.build();
     46             return modUloc.toLocale();
     47         } catch (Exception e) {
     48             // hmm, it should not happen
     49             throw new RuntimeException(e);
     50         }
     51     }
     52 
     53     public static boolean isICUExtendedLocale(Locale locale) {
     54         String variant = locale.getVariant();
     55         if (variant.equals(ICU_VARIANT) || variant.endsWith(ICU_VARIANT_SUFFIX)) {
     56             return true;
     57         }
     58         return false;
     59     }
     60 
     61     public static boolean equals(Object o1, Object o2) {
     62         if (o1 == null && o2 == null) {
     63             return true;
     64         }
     65         if (o1 == null || o2 == null) {
     66             return false;
     67         }
     68         return o1.equals(o2);
     69     }
     70 
     71     private static final boolean SUNJRE;
     72     private static final boolean IBMJRE;
     73 
     74     static {
     75         String javaVendor = System.getProperty("java.vendor");
     76         if (javaVendor != null) {
     77             if (javaVendor.indexOf("Sun") >= 0) {
     78                 SUNJRE = true;
     79                 IBMJRE = false;
     80             } else if (javaVendor.indexOf("IBM") >= 0) {
     81                 SUNJRE = false;
     82                 IBMJRE = true;
     83             } else {
     84                 SUNJRE = false;
     85                 IBMJRE = false;
     86             }
     87         } else {
     88             SUNJRE = false;
     89             IBMJRE = false;
     90         }
     91     }
     92 
     93     public static boolean isSUNJRE() {
     94         return SUNJRE;
     95     }
     96     public static boolean isIBMJRE() {
     97         return IBMJRE;
     98     }
     99 
    100     private static final Set<Locale> EXCLUDED_LOCALES = new HashSet<Locale>();
    101     static {
    102         EXCLUDED_LOCALES.add(Locale.ROOT);
    103         // de-GR is supported by Java 8, but not supported by CLDR / ICU
    104         EXCLUDED_LOCALES.add(new Locale("de", "GR"));
    105     }
    106 
    107     /*
    108      * Checks if the given locale is excluded from locale SPI test
    109      */
    110     public static boolean isExcluded(Locale loc) {
    111         if (EXCLUDED_LOCALES.contains(loc)) {
    112             return true;
    113         }
    114         return isProblematicIBMLocale(loc);
    115     }
    116 
    117     /*
    118      * Ticket#6368
    119      *
    120      * The ICU4J locale spi test cases reports many errors on IBM Java 6. There are two kinds
    121      * of problems observed and both of them look like implementation problems in IBM Java 6.
    122      *
    123      * - When a locale has variant field (for example, sr_RS_Cyrl, de_DE_PREEURO), adding ICU
    124      *   suffix in the variant field (for example, sr_RS_Cyrl_ICU, de_DE_PREEURO_ICU) has no effects.
    125      *   For these locales, IBM JRE 6 ignores installed Locale providers.
    126      *
    127      * - For "sh" sublocales with "ICU" variant (for example, sh__ICU, sh_CS_ICU), IBM JRE 6 also
    128      *   ignores installed ICU locale providers. Probably, "sh" is internally mapped to "sr_RS_Cyrl"
    129      *   internally before locale look up.
    130      *
    131      * For now, we exclude these problematic locales from locale spi test cases on IBM Java 6.
    132      */
    133     public static boolean isProblematicIBMLocale(Locale loc) {
    134         if (!isIBMJRE()) {
    135             return false;
    136         }
    137         if (loc.getLanguage().equals("sh")) {
    138             return true;
    139         }
    140         String variant = loc.getVariant();
    141         if (variant.startsWith("EURO") || variant.startsWith("PREEURO")
    142                 || variant.startsWith("Cyrl") || variant.startsWith("Latn")) {
    143             return true;
    144         }
    145         return false;
    146     }
    147 }
    148