1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html#License
3 /*
4  *******************************************************************************
5  * Copyright (C) 2008-2015, International Business Machines Corporation and    *
6  * others. All Rights Reserved.                                                *
7  *******************************************************************************
8  */
9 package com.ibm.icu.dev.test.localespi;
10 
11 import java.util.HashSet;
12 import java.util.Locale;
13 import java.util.Set;
14 
15 import com.ibm.icu.util.ULocale;
16 import com.ibm.icu.util.ULocale.Builder;
17 
18 public class TestUtil {
19 
20     static final String ICU_VARIANT = "ICU4J";
21     private static final String ICU_VARIANT_SUFFIX = "_ICU4J";
22 
toICUExtendedLocale(Locale locale)23     public static Locale toICUExtendedLocale(Locale locale) {
24         if (isICUExtendedLocale(locale)) {
25             return locale;
26         }
27 
28         String variant = locale.getVariant();
29         variant = variant.length() == 0 ? ICU_VARIANT : variant + ICU_VARIANT_SUFFIX;
30 
31         // We once convert Locale to ULocale, then update variant
32         // field. We could do this using Locale APIs, but have to
33         // use a lot of reflections, because the test code should
34         // also run on JRE 6.
35         ULocale uloc = ULocale.forLocale(locale);
36         if (uloc.getScript().length() == 0) {
37             return new Locale(locale.getLanguage(), locale.getCountry(), variant);
38         }
39 
40         // For preserving JDK Locale's script, we cannot use
41         // the regular Locale constructor.
42         ULocale modUloc = null;
43         Builder locBld = new Builder();
44         try {
45             locBld.setLocale(uloc);
46             locBld.setVariant(variant);
47             modUloc = locBld.build();
48             return modUloc.toLocale();
49         } catch (Exception e) {
50             // hmm, it should not happen
51             throw new RuntimeException(e);
52         }
53     }
54 
isICUExtendedLocale(Locale locale)55     public static boolean isICUExtendedLocale(Locale locale) {
56         String variant = locale.getVariant();
57         if (variant.equals(ICU_VARIANT) || variant.endsWith(ICU_VARIANT_SUFFIX)) {
58             return true;
59         }
60         return false;
61     }
62 
equals(Object o1, Object o2)63     public static boolean equals(Object o1, Object o2) {
64         if (o1 == null && o2 == null) {
65             return true;
66         }
67         if (o1 == null || o2 == null) {
68             return false;
69         }
70         return o1.equals(o2);
71     }
72 
73     private static final boolean SUNJRE;
74     private static final boolean IBMJRE;
75 
76     static {
77         String javaVendor = System.getProperty("java.vendor");
78         if (javaVendor != null) {
79             if (javaVendor.indexOf("Sun") >= 0) {
80                 SUNJRE = true;
81                 IBMJRE = false;
82             } else if (javaVendor.indexOf("IBM") >= 0) {
83                 SUNJRE = false;
84                 IBMJRE = true;
85             } else {
86                 SUNJRE = false;
87                 IBMJRE = false;
88             }
89         } else {
90             SUNJRE = false;
91             IBMJRE = false;
92         }
93     }
94 
isSUNJRE()95     public static boolean isSUNJRE() {
96         return SUNJRE;
97     }
isIBMJRE()98     public static boolean isIBMJRE() {
99         return IBMJRE;
100     }
101 
102     private static final Set<Locale> EXCLUDED_LOCALES = new HashSet<Locale>();
103     static {
104         EXCLUDED_LOCALES.add(Locale.ROOT);
105         // de-GR is supported by Java 8, but not supported by CLDR / ICU
EXCLUDED_LOCALES.add(new Locale("de", "GR"))106         EXCLUDED_LOCALES.add(new Locale("de", "GR"));
107     }
108 
109     /*
110      * Checks if the given locale is excluded from locale SPI test
111      */
isExcluded(Locale loc)112     public static boolean isExcluded(Locale loc) {
113         if (EXCLUDED_LOCALES.contains(loc)) {
114             return true;
115         }
116         return isProblematicIBMLocale(loc);
117     }
118 
119     /*
120      * Ticket#6368
121      *
122      * The ICU4J locale spi test cases reports many errors on IBM Java 6. There are two kinds
123      * of problems observed and both of them look like implementation problems in IBM Java 6.
124      *
125      * - When a locale has variant field (for example, sr_RS_Cyrl, de_DE_PREEURO), adding ICU
126      *   suffix in the variant field (for example, sr_RS_Cyrl_ICU, de_DE_PREEURO_ICU) has no effects.
127      *   For these locales, IBM JRE 6 ignores installed Locale providers.
128      *
129      * - For "sh" sublocales with "ICU" variant (for example, sh__ICU, sh_CS_ICU), IBM JRE 6 also
130      *   ignores installed ICU locale providers. Probably, "sh" is internally mapped to "sr_RS_Cyrl"
131      *   internally before locale look up.
132      *
133      * For now, we exclude these problematic locales from locale spi test cases on IBM Java 6.
134      */
isProblematicIBMLocale(Locale loc)135     public static boolean isProblematicIBMLocale(Locale loc) {
136         if (!isIBMJRE()) {
137             return false;
138         }
139         if (loc.getLanguage().equals("sh")) {
140             return true;
141         }
142         String variant = loc.getVariant();
143         if (variant.startsWith("EURO") || variant.startsWith("PREEURO")
144                 || variant.startsWith("Cyrl") || variant.startsWith("Latn")) {
145             return true;
146         }
147         return false;
148     }
149 }
150