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products/sources/formale Sprachen/Java/Openjdk/test/jdk/java/awt/image/ColorModel/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 2 kB

Quelle EqualsTest.java Sprache: JAVA

/*
* Copyright (c) 2017, 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 4524500 7107905
* @run main EqualsTest
* @summary Tests whether ColorModel.equals() succeeds using a
* user-implemented subclass of ColorModel which calls the ColorModel(int bits)
* constructor. The test fails if an exception is thrown when equals()
* is called or if equals() returns an incorrect value.
*/

import java.awt.image.ColorModel;

public class EqualsTest {

    public static void main(String[] args) {
        SimpleColorModel scm1 = new SimpleColorModel(3);
        SimpleColorModel scm2 = new SimpleColorModel(3);
        SimpleColorModel scm3 = new SimpleColorModel(8);
        ColorModel rgbcm = ColorModel.getRGBdefault();

        try {
            if (scm1.equals(scm2)) {
                throw new RuntimeException("Test 1 failed: " +
                                           "scm1 should not equal scm2");
            }

            if (scm1.equals(scm3)) {
                throw new RuntimeException("Test 2 failed: " +
                                           "scm1 should not equal scm3");
            }

            if (scm1.equals(rgbcm) || rgbcm.equals(scm1)) {
                throw new RuntimeException("Test 3 failed: " +
                                           "scm1 should not equal rgbcm");
            }
        } catch (Exception e) {
            throw new RuntimeException("Test failed: " + e);
        }
    }

    private static class SimpleColorModel extends ColorModel {

        public SimpleColorModel(int bits) {
            super(bits);
        }

        public int getRed(int pixel) {
            return 0;
        }

        public int getGreen(int pixel) {
            return 0;
        }

        public int getBlue(int pixel) {
            return 0;
        }

        public int getAlpha(int pixel) {
            return 0;
        }
    }
}

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