tck11/test/java/org/apache/jdo/tck/query/operators/PromotionOfNumericOperands.java

/*
 * Copyright 2005 The Apache Software Foundation.
 * 
 * Licensed 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.operators;

import java.util.Collection;

import javax.jdo.PersistenceManager;
import javax.jdo.Transaction;

import org.apache.jdo.tck.pc.mylib.PrimitiveTypes;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;

/**
 *<B>Title:</B> Promotion of Numeric Operands for Comparisons
 *<BR>
 *<B>Keywords:</B> query
 *<BR>
 *<B>Assertion ID:</B> A14.6.2-39.
 *<BR>
 *<B>Assertion Description: </B>
Numeric operands can be promoted for comparison and arithmetic operations.

 */

public class PromotionOfNumericOperands extends QueryTest {

    /** */
    private static final String ASSERTION_FAILED = 
        "Assertion A14.6.2-39 (PromotionOfNumericOperands) 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(PromotionOfNumericOperands.class);
    }
    
    /** */
    public void test() {
        pm = getPM();

        try {
            loadPrimitiveTypes(pm);
            runTest(pm);
        }
        finally {
            cleanupDatabase(pm, PrimitiveTypes.class);
            pm.close();
            pm = null;
        }
    }
    
    /** */
    void runTest(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        tx.begin();

        Collection instance9 = (Collection)pm.newQuery(
            PrimitiveTypes.class, "id == 9").execute();
                
        // comparison double == int
        runSimplePrimitiveTypesQuery("doubleNotNull == 9", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // comparison Double == int
        runSimplePrimitiveTypesQuery("doubleNull == 9", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // comparison BigInteger == int
        runSimplePrimitiveTypesQuery("bigInteger == 9", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // comparison BigDecimal == int
        runSimplePrimitiveTypesQuery("bigDecimal == 9", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // promotion in arithmetic operation: int + byte == int
        runSimplePrimitiveTypesQuery("1 + byteNotNull == 10", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // promotion in arithmetic operation: int - short == long
        runSimplePrimitiveTypesQuery("10 - shortNotNull == 1L", 
                                     pm, instance9, ASSERTION_FAILED);
        
        // promotion in arithmetic operation: long - Integer == int
        runSimplePrimitiveTypesQuery("10L - intNull == 1", 
                                     pm, instance9, ASSERTION_FAILED);
    }
}