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/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.text.DecimalFormatSymbols;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.Locale.Builder;
/**
* TestUtils provides utility methods to get a locale-dependent attribute.
* For example,
* - whether or not a non-Gregorian calendar is used
* - whether or not non-ASCII digits are used
*
* This class was developed to help testing for internationalization &
* localization and is not versatile.
*/
public class TestUtils {
/**
* Returns true if the give locale uses Gregorian calendar.
*/
public static boolean usesGregorianCalendar(Locale locale) {
return Calendar.getInstance(locale).getClass() == GregorianCalendar.class;
}
/**
* Returns true if the given locale uses ASCII digits.
*/
public static boolean usesAsciiDigits(Locale locale) {
return DecimalFormatSymbols.getInstance(locale).getZeroDigit() == '0';
}
/**
* Returns true if the given locale has a special variant which is treated
* as ill-formed in BCP 47.
*
* BCP 47 requires a variant subtag to be 5 to 8 alphanumerics or a
* single numeric followed by 3 alphanumerics.
* However, note that this methods doesn't check a variant so rigorously
* because this is a utility method for testing. Intended special variants
* are: JP, NY, and TH, which can be commonly provided by
* Locale.getAvailableLocales().
*
*/
public static boolean hasSpecialVariant(Locale locale) {
String variant = locale.getVariant();
return !variant.isEmpty()
&& "JP".equals(variant) || "NY".equals(variant) || "TH".equals(variant);
}
}
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