Tests

We use unit test suites to verify the correctness of our virtual machine. Here you can access the source code of the tests.

/*
 * Copyright 1997-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */


package at.ssw.hotswap.test.body;

import static org.junit.Assert.*;

import org.junit.Before;
import org.junit.Test;

import at.ssw.hotswap.HotSwapTool;
import at.ssw.hotswap.test.TestUtil;

/**
 * @author Thomas Wuerthinger
 */

public class SimpleStaticTest {

    @Before
    public void setUp() throws Exception {
        HotSwapTool.toVersion(SimpleStaticTest.class, 0);
       
        // E and Helper must be loaded and initialized
        E e = new E();
        Helper h = new Helper();
    }

    // Version 0

    public static class Helper {
        public static int getIntegerField() {
            return E.integerField;
        }

        public static void setIntegerField(int x) {
            E.integerField = x;
        }

        public static int getFinalIntegerField() {
            return E.finalIntegerField;
        }
    }

    public static class E {
        public static int integerField = 10;

        // javac will generate "ConstantValue" attribute for this field!
        public static final int finalIntegerField = 7;
    }

    public static class E___1 {
    }

    // Version 1
    public static class E___2 {
        public static int integerField = 10;

        // javac will generate "ConstantValue" attribute for this field!
        public static final int finalIntegerField = 7;
    }

    @Test
    public void testSimpleNewStaticField() {

        assert HotSwapTool.getCurrentVersion(SimpleStaticTest.class) == 0;

        HotSwapTool.toVersion(SimpleStaticTest.class, 1);

        TestUtil.assertException(NoSuchFieldError.class, new Runnable(){
            @Override
            public void run() {
                Helper.getIntegerField();
            }
        });

        HotSwapTool.toVersion(SimpleStaticTest.class, 2);

        assertEquals(0, Helper.getIntegerField());
        assertEquals(7, Helper.getFinalIntegerField());
        Helper.setIntegerField(1000);
        assertEquals(1000, Helper.getIntegerField());

        HotSwapTool.toVersion(SimpleStaticTest.class, 1);

        TestUtil.assertException(NoSuchFieldError.class, new Runnable(){
            @Override
            public void run() {
                Helper.getIntegerField();
            }
        });

        HotSwapTool.toVersion(SimpleStaticTest.class, 2);

        assertEquals(0, Helper.getIntegerField());
        assertEquals(7, Helper.getFinalIntegerField());
        Helper.setIntegerField(1000);
        assertEquals(1000, Helper.getIntegerField());
       
        HotSwapTool.toVersion(SimpleStaticTest.class, 0);

        assertEquals(7, Helper.getFinalIntegerField());
        assertEquals(1000, Helper.getIntegerField());
    }
}
 

Post a Comment

Your email is never published nor shared. Required fields are marked *

*
*

You may use these HTML tags and attributes <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>