dcevm/dcevm/src/test/java7/com/github/dcevm/test/body/ArrayTest.java

/*
 * Copyright (c) 2010, 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.
 *
 */

package com.github.dcevm.test.body;

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

import java.lang.reflect.Array;

import static com.github.dcevm.test.util.HotSwapTestHelper.__toVersion__;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * @author Ivan Dubrov
 */
public class ArrayTest {

    public class A {
    }

    public class A___1 {
    }

    public class B extends A {
    }

    public class B___1 extends A {
    }

    @Before
    public void setUp() throws Exception {
        __toVersion__(0);
    }

    @Test
    public void testArray() {
        Object[] arr = new A[] { new A(), new A() };
        A[] arr2 = new B[] { new B(), new B() };
        A[][] arr3 = new B[10][];

        __toVersion__(1);

        assertTrue(arr instanceof A[]);
        assertTrue(arr instanceof Object[]);
        assertEquals(arr.getClass(), Array.newInstance(A.class, 0).getClass());

        assertTrue(arr2 instanceof B[]);
        assertTrue(arr2 instanceof A[]);
        assertTrue(arr2 instanceof Object[]);
        assertEquals(arr2.getClass(), Array.newInstance(B.class, 0).getClass());

        assertTrue(arr3 instanceof B[][]);
        assertTrue(arr3 instanceof A[][]);
        assertTrue(arr3 instanceof Object[][]);
        assertEquals(arr3.getClass(), Array.newInstance(B[].class, 0).getClass());

        __toVersion__(0);

        assertTrue(arr instanceof A[]);
        assertTrue(arr instanceof Object[]);
        assertEquals(arr.getClass(), Array.newInstance(A.class, 0).getClass());

        assertTrue(arr2 instanceof B[]);
        assertTrue(arr2 instanceof A[]);
        assertTrue(arr2 instanceof Object[]);
        assertEquals(arr2.getClass(), Array.newInstance(B.class, 0).getClass());

        assertTrue(arr3 instanceof B[][]);
        assertTrue(arr3 instanceof A[][]);
        assertTrue(arr3 instanceof Object[][]);
        assertEquals(arr3.getClass(), Array.newInstance(B[].class, 0).getClass());
    }
}