intarithmetictest.java

Mandarax是一个规则引擎的纯Java实现。它支持多类型的事实和基于反映的规则

/*
 * Copyright (C) 1999-2004 <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</a>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package test.org.mandarax.lib.math;


import java.util.Collection;
import java.util.Vector;

import org.mandarax.util.AutoFacts;

/**
 * Superclass for testing predicates and functions for integers from the math package.
 * All tests work as follows: we build an auto fact set, fetch an iterator and
 * count the facts generated. The number of facts is compared with the expected number of facts.
 * Facts are printed out on System.out.
 * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
 * @version 3.4 <7 March 05>
 * @since 1.6
 */
public abstract class IntArithmeticTest extends MathTestCase {

    /**
     * IntArithmeticTest constructor comment.
     */
    public IntArithmeticTest() {
        super ();
    }

    /**
     * Get the auto facts.
     * @return an auto facts clause set
     */
    protected AutoFacts getAutoFacts() {
        final Vector ext     = new Vector ();
        int[]        testSet = getTestSet ();

        for(int i = 0; i < testSet.length; i++) {
            ext.add (new Integer (testSet[i]));
        }

        return new AutoFacts () {

            public Collection getExtension(Class clazz) {
                if(clazz == Integer.class) {
                    return ext;
                } else {
                    return super.getExtension (clazz);
                }
            }
        };
    }

    /**
     * Get the set of numbers used for testing.
     * @return an array of doubles
     */
    protected abstract int[] getTestSet();

    /**
     * Get the type (e.g. Integer.class or Double.class) we want to test.
     * @return the type to be tested
     */
    protected Class getType() {
        return Integer.class;
    }
}