/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.sun.jini.test.spec.locatordiscovery;
import java.util.logging.Level;
import com.sun.jini.qa.harness.TestException;
import com.sun.jini.qa.harness.QAConfig;
import net.jini.discovery.LookupLocatorDiscovery;
import net.jini.core.discovery.LookupLocator;
/**
* This class verifies that the <code>LookupLocatorDiscovery</code> utility
* class operates in a manner consistent with the specification. In
* particular, this class verifies that when the parameter input to the
* constructor contains at least 1 <code>null</code> element, a
* <code>NullPointerException</code> is thrown.
*
* The environment in which this class expects to operate is as follows:
* <p><ul>
* <li> no lookup services
* <li> an instance of the lookup locator discovery utility constructed
* using a set of locators in which at least 1 element is null
* </ul><p>
*
* If the lookup locator discovery utility functions as specified, then
* upon attempting to construct an instance of the lookup locator discovery
* utility using a set of locators containing at least one <code>null</code>
* element, a <code>NullPointerException</code> will occur.
*
*/
public class ConstructorNullElement extends AbstractBaseTest {
protected LookupLocator[] nullLocs = null;
protected LookupLocatorDiscovery lld = null;
/** Performs actions necessary to prepare for execution of the
* current test (refer to the description of this method in the
* parent class).
*/
public void setup(QAConfig sysConfig) throws Exception {
super.setup(sysConfig);
/* Create an array of LookupLocator instances in which at least 1
* element is null
*/
int nLocs = 5;
nullLocs = new LookupLocator[nLocs];
if(nLocs > 0) {
nullLocs[0] = getTestLocator(0);//provides host and an initial port
String host = nullLocs[0].getHost();
int port = nullLocs[0].getPort();
int indx = nLocs/2;
for(int i=1;i<nullLocs.length;i++) {//populate the rest of array
port = port+1;
nullLocs[i]
= ((indx == i) ? null : QAConfig.getConstrainedLocator(host,port));
}//end loop
}//endif
}//end setup
/** Executes the current test by doing the following:
* <p>
* Verifies that a <code>NullPointerException</code> is thrown when
* an instance of <code>LookupLocatorDiscovery</code> is created
* using a set of locators in which at least one element is
* <code>null</code>.
*/
public void run() throws Exception {
logger.log(Level.FINE, "run()");
/* Create an instance of LookupLocatorDiscovery using null element */
try {
lld = new LookupLocatorDiscovery(nullLocs,
getConfig().getConfiguration());
locatorDiscoveryList.add(lld);
String errStr = new String("no NullPointerException");
logger.log(Level.FINE, errStr);
throw new TestException(errStr);
} catch(NullPointerException e) {
logger.log(Level.FINE, "NullPointerException on "
+"construction of LookupLocatorDiscovery as "
+"expected");
}
}//end run
}//end class ConstructorNullElement