/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/*
* @test
* @bug 6273752
* @summary Test ImmutableDescriptor.union
* @author Eamonn McManus
* @run clean UnionTest
* @run build UnionTest
* @run main UnionTest
*/
import java.util.Collections;
import javax.management.Descriptor;
import javax.management.ImmutableDescriptor;
import static javax.management.ImmutableDescriptor.union;
import static javax.management.ImmutableDescriptor.EMPTY_DESCRIPTOR;
import javax.management.modelmbean.DescriptorSupport;
public class UnionTest {
public static void main(String[] args) throws Exception {
ImmutableDescriptor immutableEmpty = new ImmutableDescriptor();
DescriptorSupport mutableEmpty = new DescriptorSupport();
checkEmpty(union());
checkEmpty(union(immutableEmpty));
checkEmpty(union(mutableEmpty));
checkEmpty(union(EMPTY_DESCRIPTOR, immutableEmpty, mutableEmpty));
checkEmpty(union(null, immutableEmpty, null));
ImmutableDescriptor immutableNumbers =
new ImmutableDescriptor(new String[] {"one", "two", "three"},
new Object[] {1, 2, 3});
final String[] noNames = null;
DescriptorSupport mutableNumbers =
new DescriptorSupport(immutableNumbers.getFieldNames(),
immutableNumbers.getFieldValues(noNames));
ImmutableDescriptor immutableOne =
new ImmutableDescriptor(Collections.singletonMap("one", 1));
DescriptorSupport mutableOne =
new DescriptorSupport(new String[] {"one"}, new Object[] {1});
ImmutableDescriptor immutableTwo =
new ImmutableDescriptor(Collections.singletonMap("two", 2));
DescriptorSupport mutableTwo =
new DescriptorSupport(new String[] {"two"}, new Object[] {2});
ImmutableDescriptor immutableOneTwo =
new ImmutableDescriptor(new String[] {"one", "two"},
new Object[] {1, 2});
checkEqual(union(immutableNumbers), immutableNumbers);
checkEqual(union(immutableNumbers, mutableNumbers), immutableNumbers);
checkEqual(union(mutableNumbers, immutableNumbers), immutableNumbers);
checkEqual(union(mutableEmpty, immutableEmpty, immutableNumbers,
mutableNumbers, immutableOne), immutableNumbers);
checkEqual(union(immutableOne, immutableTwo, immutableNumbers),
immutableNumbers);
checkEquivalent(union(immutableOne, mutableNumbers), immutableNumbers);
checkEquivalent(union(immutableOne, immutableTwo), immutableOneTwo);
checkEquivalent(union(mutableOne, mutableTwo), immutableOneTwo);
if (failure != null)
throw new Exception("TEST FAILED: " + failure);
System.out.println("TEST PASSED");
}
private static void checkEmpty(ImmutableDescriptor d) {
if (d != EMPTY_DESCRIPTOR) {
failure = "Union of empty descriptors should be " +
"ImmutableDescriptor.EMPTY";
System.err.println("FAILED: " + failure);
Thread.dumpStack();
}
}
private static void checkEqual(ImmutableDescriptor d,
ImmutableDescriptor e) {
if (d != e) {
failure = "Union should produce one of its arguments but does not";
System.err.println("FAILED: " + failure);
Thread.dumpStack();
}
}
private static void checkEquivalent(ImmutableDescriptor d,
ImmutableDescriptor e) {
if (!d.equals(e)) {
failure = "Union produced this: " + d + "; but should have " +
"produced this: " + e;
System.err.println("FAILED: " + failure);
Thread.dumpStack();
}
}
private static String failure;
}