Quelle Test8004821.java Sprache: JAVA

/*
* Copyright (c) 2013, 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.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.image.BufferedImage;

/**
* @test
* @bug 8004821
* @summary Verifies that drawPolygon() works with empty arrays.
* @author Sergey Bylokhov
*/
public final class Test8004821 {

    public static void main(final String[] args) {
        final int[] arrEmpty = {};
        final int[] arr1elem = {150};
        final BufferedImage bi = new BufferedImage(300, 300,
                                                   BufferedImage.TYPE_INT_RGB);
        final Graphics2D g = (Graphics2D) bi.getGraphics();
        test(g, arrEmpty);
        test(g, arr1elem);
        g.translate(2.0, 2.0);
        test(g, arrEmpty);
        test(g, arr1elem);
        g.scale(2.0, 2.0);
        test(g, arrEmpty);
        test(g, arr1elem);
        g.dispose();
    }

    private static void test(final Graphics2D g, final int[] arr) {
        g.drawPolygon(arr, arr, arr.length);
        g.drawPolygon(new Polygon(arr, arr, arr.length));
        g.fillPolygon(arr, arr, arr.length);
        g.fillPolygon(new Polygon(arr, arr, arr.length));
        g.drawPolyline(arr, arr, arr.length);
    }
}

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