test/jdk/java/awt/FontClass/TextRequiresLayoutTest.java

/*
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 * 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.
 *
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 * questions.
 */

/*
 * @test
 * @bug 8146324
 * @summary Test Font.textRequiresLayout
 */

import java.awt.Font;

public class TextRequiresLayoutTest {

    public static void main(String args[]) {

        String simpleStr = "Hello World";
        String complexStr = "\u0641\u0642\u0643";
        char[] simpleChars = simpleStr.toCharArray();
        char[] complexChars = complexStr.toCharArray();

        if (Font.textRequiresLayout(simpleChars, 0, simpleChars.length)) {
            throw new RuntimeException("Simple text should not need layout");
        }

        if (!Font.textRequiresLayout(complexChars, 0, complexChars.length)) {
            throw new RuntimeException("Complex text should need layout");
        }

        if (Font.textRequiresLayout(complexChars, 0, 0)) {
            throw new RuntimeException("Empty text should not need layout");
        }

        boolean except = false;
        try {
             Font.textRequiresLayout(null, 0, 0);
        } catch (NullPointerException npe) {
           except = true;
        }
        if (!except) {
            throw new RuntimeException("No expected IllegalArgumentException");
        }

        except = false;
        try {
             Font.textRequiresLayout(complexChars, -1, 0);
        } catch (ArrayIndexOutOfBoundsException aioobe) {
           except = true;
        }
        if (!except) {
            throw new
                RuntimeException("No expected ArrayIndexOutOfBoundsException");
        }

        except = false;
        try {
             Font.textRequiresLayout(complexChars, 0, complexChars.length+1);
        } catch (ArrayIndexOutOfBoundsException aioobe) {
           except = true;
        }
        if (!except) {
            throw new
                RuntimeException("No expected ArrayIndexOutOfBoundsException");
        }
    }
}