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Java example source code file (Test6657026.java)

This example Java source code file (Test6657026.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, border, buttonborder, error, exception, flush3dborder, gui, insets, internalframeborder, menubarborder, menuitemborder, negative, optiondialogborder, paletteborder, popupmenuborder, scrollpaneborder, swing, test6657026

The Test6657026.java Java example source code

/*
 * Copyright (c) 2009, 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.
 */

/*
 * @test
 * @bug 6657026
 * @summary Tests constancy of borders
 * @author Sergey Malenkov
 */

import java.awt.Insets;
import javax.swing.border.Border;
import javax.swing.plaf.metal.MetalBorders.ButtonBorder;
import javax.swing.plaf.metal.MetalBorders.MenuBarBorder;
import javax.swing.plaf.metal.MetalBorders.MenuItemBorder;
import javax.swing.plaf.metal.MetalBorders.PopupMenuBorder;

public class Test6657026 {

    private static final Insets NEGATIVE = new Insets(Integer.MIN_VALUE,
                                                      Integer.MIN_VALUE,
                                                      Integer.MIN_VALUE,
                                                      Integer.MIN_VALUE);

    public static void main(String[] args) {
        new ButtonBorder() {{borderInsets = NEGATIVE;}};
        new MenuBarBorder() {{borderInsets = NEGATIVE;}};
        new MenuItemBorder() {{borderInsets = NEGATIVE;}};
        new PopupMenuBorder() {{borderInsets = NEGATIVE;}};

        test(create("ButtonBorder"));
        test(create("MenuBarBorder"));
        test(create("MenuItemBorder"));
        test(create("PopupMenuBorder"));

        test(create("Flush3DBorder"));
        test(create("InternalFrameBorder"));
        // NOT USED: test(create("FrameBorder"));
        // NOT USED: test(create("DialogBorder"));
        test(create("PaletteBorder"));
        test(create("OptionDialogBorder"));
        test(create("ScrollPaneBorder"));
    }

    private static Border create(String name) {
        try {
            name = "javax.swing.plaf.metal.MetalBorders$" + name;
            return (Border) Class.forName(name).newInstance();
        }
        catch (Exception exception) {
            throw new Error("unexpected exception", exception);
        }
    }

    private static void test(Border border) {
        Insets actual = border.getBorderInsets(null);
        if (NEGATIVE.equals(actual)) {
            throw new Error("unexpected insets in " + border.getClass());
        }
        Insets expected = (Insets) actual.clone();
        // modify
        actual.top++;
        actual.left++;
        actual.right++;
        actual.bottom++;
        // validate
        if (!expected.equals(border.getBorderInsets(null))) {
            throw new Error("shared insets in " + border.getClass());
        }
    }
}

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