/*

 * Copyright (c) 2015, 2019, 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.

 *

 */

// A test class to be launched in AppCDS mode, has basic+

// coverage of string operations

import sun.hotspot.WhiteBox;

public class HelloStringPlus {

    public static void main(String args[]) {

        // Let's reference the string that is in archive

        String testString1 = "shared_test_string_unique_14325";

        System.out.println("Hello String: " + testString1);

        WhiteBox wb = WhiteBox.getWhiteBox();

        if (!wb.isShared(testString1) && !wb.areSharedStringsIgnored()) {

            throw new RuntimeException("testString1 is not shared");

        }

        // Check other basic string operations

        // Interning and equality

        String[] testArray = new String[] {"shared_", "test_", "string_", "intern_", "12345"};

        String toBeInterned = "";

        StringBuilder sb = new StringBuilder();

        for (String s : testArray) {

            sb.append(s);

        }

        toBeInterned = sb.toString();

        System.out.println("About to intern a string: " + toBeInterned);

        toBeInterned.intern();

        // check equality

        if (testString1.equals(toBeInterned))

            throw new RuntimeException("Equality test 1 failed");

        if (!testString1.equals("shared_test_string" + '_' + "unique_14325"))

            throw new RuntimeException("Equality test 2 failed");

        // Chech the hash code functionality; no special assertions, just make sure

        // no crashe or exception occurs

        System.out.println("testString1.hashCode() = " + testString1.hashCode());

        // Check intern() method for "" string

        String empty = "";

        String empty_interned = empty.intern();

        if (!wb.isShared(empty)) {

           throw new RuntimeException("Empty string should be shared");

        }

        if (empty_interned != empty) {

            throw new RuntimeException("Different string is returned from intern() for empty string");

        }

    }

}