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 package test.java.text.testlib; 25 26 import java.text.DecimalFormatSymbols; 27 import java.util.Calendar; 28 import java.util.GregorianCalendar; 29 import java.util.Locale; 30 31 import java.util.Locale.Builder; 32 33 /** 34 * TestUtils provides utility methods to get a locale-dependent attribute. 35 * For example, 36 * - whether or not a non-Gregorian calendar is used 37 * - whether or not non-ASCII digits are used 38 * 39 * This class was developed to help testing for internationalization & 40 * localization and is not versatile. 41 */ 42 public class TestUtils { 43 44 /** 45 * Returns true if the give locale uses Gregorian calendar. 46 */ usesGregorianCalendar(Locale locale)47 public static boolean usesGregorianCalendar(Locale locale) { 48 return Calendar.getInstance(locale).getClass() == GregorianCalendar.class; 49 } 50 51 /** 52 * Returns true if the given locale uses ASCII digits. 53 */ usesAsciiDigits(Locale locale)54 public static boolean usesAsciiDigits(Locale locale) { 55 return DecimalFormatSymbols.getInstance(locale).getZeroDigit() == '0'; 56 } 57 58 /** 59 * Returns true if the given locale has a special variant which is treated 60 * as ill-formed in BCP 47. 61 * 62 * BCP 47 requires a variant subtag to be 5 to 8 alphanumerics or a 63 * single numeric followed by 3 alphanumerics. 64 * However, note that this methods doesn't check a variant so rigorously 65 * because this is a utility method for testing. Intended special variants 66 * are: JP, NY, and TH, which can be commonly provided by 67 * Locale.getAvailableLocales(). 68 * 69 */ hasSpecialVariant(Locale locale)70 public static boolean hasSpecialVariant(Locale locale) { 71 String variant = locale.getVariant(); 72 return !variant.isEmpty() 73 && "JP".equals(variant) || "NY".equals(variant) || "TH".equals(variant); 74 } 75 76 } 77