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,
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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());
}
}
