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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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*
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* 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;
}
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