/*
 * 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 org.apache.jdo.tck.query.jdoql.subqueries;

import java.util.List;

import javax.jdo.JDOException;
import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import javax.jdo.Transaction;

import org.apache.jdo.tck.JDO_Test;
import org.apache.jdo.tck.pc.company.CompanyModelReader;
import org.apache.jdo.tck.pc.company.Employee;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;

/**
 *<B>Title:</B> Null Variable Declaration in addSubquery
 *<BR>
 *<B>Keywords:</B> query
 *<BR>
 *<B>Assertion ID:</B> A14.6.2-53.
 *<BR>
 *<B>Assertion Description: </B> 
 * If the trimmed value is the empty String, or the parameter is null, 
 * then JDOUserException is thrown.
 */
public class NullVariableDeclaration extends SubqueriesTest {

    /** */
    private static final String ASSERTION_FAILED = 
        "Assertion A14.6.2-53 (NullVariableDeclaration) failed: ";
    
    /**
     * The <code>main</code> is called when the class
     * is directly executed from the command line.
     * @param args The arguments passed to the program.
     */
    public static void main(String[] args) {
        BatchTestRunner.run(NullVariableDeclaration.class);
    }

    /** */
    public void testNegative() {
        PersistenceManager pm = getPM();
        runTestNullVariable(pm);
        runTestEmptyVariable(pm);
    }

    /** */
    void runTestNullVariable(PersistenceManager pm) {
        Query apiQuery = pm.newQuery(Employee.class);
        try {
            apiQuery.addSubquery(null, null, null);
            apiQuery.compile();
            fail(ASSERTION_FAILED, 
                 "addSubquery called with a null varible declaration must throw a JDOUserException.");
        } catch (JDOException ex) {
            // expected JDOException
        }
    }

    /** */
    void runTestEmptyVariable(PersistenceManager pm) {
        Query apiQuery = pm.newQuery(Employee.class);
        try {
            apiQuery.addSubquery(null, " ", null);
            apiQuery.compile();
            fail(ASSERTION_FAILED, 
                 "addSubquery called with an empty varible declaration must throw a JDOUserException.");
        } catch (JDOException ex) {
            // expected JDOException
        }
    }

}
