Quelle ExtensionsTest.java Sprache: JAVA

/*
* Copyright (c) 2012, 2022, 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
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* questions.
*/

/*
* @test
* @bug 7168528
* @summary Test Locale.hasExtensions() and Locale.stripExtensions().
*/

import java.util.*;

public class ExtensionsTest {
    public static void main(String[] args) {
        Locale jaJPJP = Locale.of("ja", "JP", "JP");
        if (!jaJPJP.hasExtensions()) {
            error(jaJPJP + " should have an extension.");
        }
        Locale stripped = jaJPJP.stripExtensions();
        if (stripped.hasExtensions()) {
            error(stripped + " should NOT have an extension.");
        }
        if (jaJPJP.equals(stripped)) {
            throw new RuntimeException("jaJPJP equals stripped");
        }
        if (!"ja-JP-x-lvariant-JP".equals(stripped.toLanguageTag())) {
            error("stripped.toLanguageTag() isn't ja-JP-x-lvariant-JP");
        }

        Locale enUSja = Locale.forLanguageTag("en-US-u-ca-japanese");
        if (!enUSja.stripExtensions().equals(Locale.US)) {
            error("stripped enUSja not equals Locale.US");
        }

        // If a Locale has no extensions, stripExtensions() returns self.
        Locale enUS = Locale.US.stripExtensions();
        if (enUS != Locale.US) {
            error("stripped Locale.US != Locale.US");
        }
    }

    private static void error(String msg) {
        throw new RuntimeException(msg);
    }
}

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