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
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*/
package at.ssw.hotswap.test.fields;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
import at.ssw.hotswap.HotSwapTool;
/**
* Test that changes the order of two int fields.
*
* @author Thomas Wuerthinger
*/
public class FieldChangedOrderTest {
// Version 0
public static class A {
public int value1;
public int value2;
public A() {
value1 = 1;
value2 = 2;
}
public int getValue1() {
return value1;
}
public int getValue2() {
return value2;
}
}
public static class B {
public static int getStaticValue1(A a) {
return a.value1;
}
public static int getStaticValue2(A a) {
return a.value2;
}
}
// Version 1
public static class A___1 {
public int value2;
public int value1;
public int getValue1() {
return value1;
}
public int getValue2() {
return value2;
}
}
public static class B___1 {
public static int getStaticValue1(A a) {
return a.value1;
}
public static int getStaticValue2(A a) {
return a.value2;
}
}
// Version 2
public static class A___2 {
public int tmp1;
public int value2;
public int tmp2;
public int value1;
public int tmp3;
public int getValue1() {
return value1;
}
public int getValue2() {
return value2;
}
}
// Version 3
public static class A___3 {
public int tmp1;
public int value2;
public int getValue1() {
return tmp1;
}
public int getValue2() {
return value2;
}
}
@Before
public void setUp() throws Exception {
HotSwapTool.toVersion(FieldChangedOrderTest.class, 0);
}
@Test
public void testRenameField() {
assert HotSwapTool.getCurrentVersion(FieldChangedOrderTest.class) == 0;
A a = new A();
assertObjectOK(a);
HotSwapTool.toVersion(FieldChangedOrderTest.class, 3);
assertEquals(0, a.getValue1());
assertEquals(2, a.getValue2());
HotSwapTool.toVersion(FieldChangedOrderTest.class, 0);
assertEquals(0, a.getValue1());
assertEquals(2, a.getValue2());
}
@Test
public void testSimpleOrderChange() {
assert HotSwapTool.getCurrentVersion(FieldChangedOrderTest.class) == 0;
A a = new A();
assertObjectOK(a);
HotSwapTool.toVersion(FieldChangedOrderTest.class, 1);
assertObjectOK(a);
HotSwapTool.toVersion(FieldChangedOrderTest.class, 0);
assertObjectOK(a);
}
/**
* Checks that the given object is unmodified (i.e. the values of the fields are correct)
* @param a the object to be checked
*/
private void assertObjectOK(A a) {
assertEquals(1, a.getValue1());
assertEquals(2, a.getValue2());
assertEquals(1, B.getStaticValue1(a));
assertEquals(2, B.getStaticValue2(a));
assertEquals(1, a.value1);
assertEquals(2, a.value2);
}
@Test
public void testSimpleOrderChangeWithNewTempFields() {
assert HotSwapTool.getCurrentVersion(FieldChangedOrderTest.class) == 0;
A a = new A();
assertObjectOK(a);
HotSwapTool.toVersion(FieldChangedOrderTest.class, 2);
assertObjectOK(a);
HotSwapTool.toVersion(FieldChangedOrderTest.class, 0);
assertObjectOK(a);
}
}
