core/src/test/java/org/apache/commons/functor/core/composite/TestBinaryOr.java

/*
 * 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.commons.functor.core.composite;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Arrays;

import org.apache.commons.functor.BaseFunctorTest;
import org.apache.commons.functor.BinaryPredicate;
import org.apache.commons.functor.core.Constant;
import org.junit.Test;

/**
 * @version $Revision$ $Date$
 */
@SuppressWarnings("unchecked")
public class TestBinaryOr extends BaseFunctorTest {

    // Functor Testing Framework
    // ------------------------------------------------------------------------

    @Override
    protected Object makeFunctor() {
        return new BinaryOr<Object, Object>(Constant.FALSE, Constant.TRUE);
    }

    // Tests
    // ------------------------------------------------------------------------

    @Test
    public void testTrue() throws Exception {
        assertTrue((new BinaryOr<Object, Object>(Constant.TRUE)).test("xyzzy", Integer.valueOf(3)));
        assertTrue((new BinaryOr<Object, Object>(Constant.FALSE, Constant.TRUE)).test("xyzzy", Integer.valueOf(3)));
        assertTrue((new BinaryOr<Object, Object>(Constant.FALSE, Constant.FALSE, Constant.TRUE)).test("xyzzy",
            Integer.valueOf(3)));

        BinaryOr<Object, Object> p = new BinaryOr<Object, Object>(Constant.TRUE);
        assertTrue(p.test("xyzzy", Integer.valueOf(3)));
        for (int i = 0; i < 10; i++) {
            p.or(Constant.of(i % 2 == 0));
            assertTrue(p.test("xyzzy", Integer.valueOf(3)));
        }

        BinaryOr<Object, Object> q = new BinaryOr<Object, Object>(Constant.TRUE);
        assertTrue(q.test("xyzzy", Integer.valueOf(3)));
        for (int i = 0; i < 10; i++) {
            q.or(Constant.of(i % 2 == 0));
            assertTrue(q.test("xyzzy", Integer.valueOf(3)));
        }

        BinaryOr<Object, Object> r = new BinaryOr<Object, Object>(p, q);
        assertTrue(r.test("xyzzy", Integer.valueOf(3)));
    }

    @Test
    public void testFalse() throws Exception {
        assertTrue(!(new BinaryOr<Object, Object>()).test("xyzzy", Integer.valueOf(3)));
        assertTrue(!(new BinaryOr<Object, Object>(Constant.FALSE)).test("xyzzy", Integer.valueOf(3)));
        assertTrue(!(new BinaryOr<Object, Object>(Constant.FALSE, Constant.FALSE)).test("xyzzy", Integer.valueOf(3)));
        assertTrue(!(new BinaryOr<Object, Object>(Constant.FALSE, Constant.FALSE, Constant.FALSE)).test("xyzzy",
            Integer.valueOf(3)));

        BinaryOr<Object, Object> p = new BinaryOr<Object, Object>(Constant.FALSE);
        assertTrue(!p.test("xyzzy", Integer.valueOf(3)));
        for (int i = 0; i < 10; i++) {
            p.or(Constant.FALSE);
            assertTrue(!p.test("xyzzy", Integer.valueOf(3)));
        }

        BinaryOr<Object, Object> q = new BinaryOr<Object, Object>(Constant.FALSE);
        assertTrue(!q.test("xyzzy", Integer.valueOf(3)));
        for (int i = 0; i < 10; i++) {
            q.or(Constant.FALSE);
            assertTrue(!q.test("xyzzy", Integer.valueOf(3)));
        }

        BinaryOr<Object, Object> r = new BinaryOr<Object, Object>(p, q);
        assertTrue(!r.test("xyzzy", Integer.valueOf(3)));
    }

    @Test
    public void testDuplicateAdd() throws Exception {
        BinaryPredicate<Object, Object> p = Constant.TRUE;
        BinaryOr<Object, Object> q = new BinaryOr<Object, Object>(p, p);
        assertTrue(q.test("xyzzy", Integer.valueOf(3)));
        for (int i = 0; i < 10; i++) {
            q.or(p);
            assertTrue(q.test("xyzzy", Integer.valueOf(3)));
        }
    }

    @SuppressWarnings("rawtypes")
    @Test
    public void testEquals() throws Exception {
        BinaryOr<Object, Object> p = new BinaryOr<Object, Object>();
        assertEquals(p, p);

        BinaryOr<Object, Object> q = new BinaryOr<Object, Object>();
        assertObjectsAreEqual(p, q);

        BinaryAnd<Object, Object> r = new BinaryAnd<Object, Object>();
        assertObjectsAreNotEqual(p, r);

        for (int i = 0; i < 3; i++) {
            p.or(Constant.TRUE);
            assertObjectsAreNotEqual(p, q);
            q.or(Constant.TRUE);
            assertObjectsAreEqual(p, q);
            r.and(Constant.TRUE);
            assertObjectsAreNotEqual(p, r);

            p.or(new BinaryOr<Object, Object>(Constant.truePredicate(), Constant.FALSE));
            assertObjectsAreNotEqual(p, q);
            q.or(new BinaryOr<Object, Object>(Constant.truePredicate(), Constant.FALSE));
            assertObjectsAreEqual(p, q);
            r.and(new BinaryOr<Object, Object>(Constant.truePredicate(), Constant.FALSE));
            assertObjectsAreNotEqual(p, r);
        }

        assertObjectsAreNotEqual(p, Constant.TRUE);
        Iterable<BinaryPredicate<Object, Object>> iterable =
            Arrays.<BinaryPredicate<Object, Object>> asList((BinaryPredicate<Object, Object>) Constant.truePredicate());
        assertObjectsAreNotEqual(p, new BinaryOr(iterable));
        assertObjectsAreNotEqual(p, new BinaryOr((Iterable<BinaryPredicate<Object, Object>>) null));
        assertObjectsAreNotEqual(p, new BinaryOr((BinaryPredicate<Object, Object>[]) null));
        assertObjectsAreNotEqual(p, new BinaryOr((BinaryPredicate<Object, Object>) null));
        assertTrue(!p.equals(null));
    }

}