XORFilterTests.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.test.utility.filters;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.persistence.tools.workbench.test.utility.TestTools;
import org.eclipse.persistence.tools.workbench.utility.filters.Filter;
import org.eclipse.persistence.tools.workbench.utility.filters.SimpleFilter;
import org.eclipse.persistence.tools.workbench.utility.filters.XORFilter;


public class XORFilterTests extends TestCase {
    private XORFilter xorFilter;

    public static Test suite() {
        return new TestSuite(XORFilterTests.class);
    }

    public XORFilterTests(String name) {
        super(name);
    }

    protected void setUp() throws Exception {
        super.setUp();
        this.xorFilter = new XORFilter(buildMinFilter(1), buildMaxFilter(10));
    }

    private static Filter buildMinFilter(double min) {
        return new SimpleFilter(new Double(min)) {
            public boolean accept(Object next) {
                double minValue = ((Number) this.criterion).doubleValue();
                double value = ((Number) next).doubleValue();
                return value <= minValue;
            }
        };
    }

    private static Filter buildMaxFilter(double max) {
        return new SimpleFilter(new Double(max)) {
            public boolean accept(Object next) {
                double maxValue = ((Number) this.criterion).doubleValue();
                double value = ((Number) next).doubleValue();
                return value >= maxValue;
            }
        };
    }

    private static Filter buildEvenFilter() {
        return new Filter() {
            public boolean accept(Object next) {
                int value = ((Number) next).intValue();
                return (value & 1) == 0;
            }
        };
    }

    protected void tearDown() throws Exception {
        TestTools.clear(this);
        super.tearDown();
    }

    public void testFiltering2() {
        assertFalse(this.xorFilter.accept(new Integer(7)));
        assertFalse(this.xorFilter.accept(new Integer(2)));
        assertFalse(this.xorFilter.accept(new Double(6.666)));
        assertTrue(this.xorFilter.accept(new Double(-99)));
        assertTrue(this.xorFilter.accept(new Double(-1)));
        assertTrue(this.xorFilter.accept(new Double(11)));
        assertTrue(this.xorFilter.accept(new Double(111)));
    }

    public void testFiltering3() {
        XORFilter xorFilter2 = new XORFilter(this.xorFilter, buildEvenFilter());
        assertFalse(xorFilter2.accept(new Integer(7)));
        assertFalse(xorFilter2.accept(new Integer(3)));
        assertFalse(xorFilter2.accept(new Integer(9)));
        assertTrue(xorFilter2.accept(new Integer(2)));
        assertTrue(xorFilter2.accept(new Double(6.1)));
        assertTrue(xorFilter2.accept(new Double(-99)));
        assertTrue(xorFilter2.accept(new Double(-1)));
        assertTrue(xorFilter2.accept(new Double(11)));
        assertTrue(xorFilter2.accept(new Double(111)));
        assertFalse(xorFilter2.accept(new Double(-98)));
        assertFalse(xorFilter2.accept(new Double(0)));
        assertFalse(xorFilter2.accept(new Double(-2)));
        assertFalse(xorFilter2.accept(new Double(12)));
        assertFalse(xorFilter2.accept(new Double(222)));
    }

    public void testClone() {
        XORFilter xorFilter2 = (XORFilter) this.xorFilter.clone();
        assertEquals(this.xorFilter.getFilter1(), xorFilter2.getFilter1());
        assertEquals(this.xorFilter.getFilter2(), xorFilter2.getFilter2());
        assertNotSame(this.xorFilter, xorFilter2);
    }

    public void testEquals() {
        XORFilter xorFilter2 = new XORFilter(buildMinFilter(1), buildMaxFilter(10));
        assertEquals(this.xorFilter, xorFilter2);
        assertEquals(this.xorFilter.hashCode(), xorFilter2.hashCode());

        xorFilter2 = new XORFilter(buildMaxFilter(10), buildMinFilter(1));
        assertEquals(this.xorFilter, xorFilter2);
        assertEquals(this.xorFilter.hashCode(), xorFilter2.hashCode());
    }

    public void testSerialization() throws Exception {
        XORFilter xorFilter2 = (XORFilter) TestTools.serialize(this.xorFilter);
        assertEquals(this.xorFilter.getFilter1(), xorFilter2.getFilter1());
        assertEquals(this.xorFilter.getFilter2(), xorFilter2.getFilter2());
        assertNotSame(this.xorFilter, xorFilter2);
    }

}