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Commons Collections example source code file (TestPredicateUtils.java)

This example Commons Collections source code file (TestPredicateUtils.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Collections tags/keywords

arraylist, arraylist, class, collection, functorexception, hello, illegalargumentexception, illegalargumentexception, integer, object, object, predicate, predicate, testpredicateutils, util

The Commons Collections TestPredicateUtils.java source code

/*
 *  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.collections;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;

/**
 * Tests the org.apache.commons.collections.PredicateUtils class.
 * 
 * @since Commons Collections 3.0
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 *
 * @author Stephen Colebourne
 * @author Matt Benson
 */
public class TestPredicateUtils extends junit.framework.TestCase {

    private static final Object cObject = new Object();
    private static final Object cString = "Hello";
    private static final Object cInteger = new Integer(6);

    /**
     * Construct
     */
    public TestPredicateUtils(String name) {
        super(name);
    }

    /**
     * Main.
     * @param args
     */    
    public static void main(String[] args) {
        TestRunner.run(suite());
    }

    /**
     * Return class as a test suite.
     */
    public static Test suite() {
        return new TestSuite(TestPredicateUtils.class);
    }

    /**
     * Set up instance variables required by this test case.
     */
    public void setUp() {
    }

    /**
     * Tear down instance variables required by this test case.
     */
    public void tearDown() {
    }

    // exceptionPredicate
    //------------------------------------------------------------------

    public void testExceptionPredicate() {
        assertNotNull(PredicateUtils.exceptionPredicate());
        assertSame(PredicateUtils.exceptionPredicate(), PredicateUtils.exceptionPredicate());
        try {
            PredicateUtils.exceptionPredicate().evaluate(null);
        } catch (FunctorException ex) {
            try {
                PredicateUtils.exceptionPredicate().evaluate(cString);
            } catch (FunctorException ex2) {
                return;
            }
        }
        fail();
    }
    
    // nullPredicate
    //------------------------------------------------------------------

    public void testNullPredicate() {
        assertNotNull(PredicateUtils.nullPredicate());
        assertSame(PredicateUtils.nullPredicate(), PredicateUtils.nullPredicate());
        assertEquals(true, PredicateUtils.nullPredicate().evaluate(null));
        assertEquals(false, PredicateUtils.nullPredicate().evaluate(cObject));
        assertEquals(false, PredicateUtils.nullPredicate().evaluate(cString));
        assertEquals(false, PredicateUtils.nullPredicate().evaluate(cInteger));
    }

    // notNullPredicate
    //------------------------------------------------------------------

    public void testIsNotNullPredicate() {
        assertNotNull(PredicateUtils.notNullPredicate());
        assertSame(PredicateUtils.notNullPredicate(), PredicateUtils.notNullPredicate());
        assertEquals(false, PredicateUtils.notNullPredicate().evaluate(null));
        assertEquals(true, PredicateUtils.notNullPredicate().evaluate(cObject));
        assertEquals(true, PredicateUtils.notNullPredicate().evaluate(cString));
        assertEquals(true, PredicateUtils.notNullPredicate().evaluate(cInteger));
    }

    // equalPredicate
    //------------------------------------------------------------------

    public void testEqualPredicate() {
        assertSame(PredicateUtils.nullPredicate(), PredicateUtils.equalPredicate(null));
        assertNotNull(PredicateUtils.equalPredicate(new Integer(6)));
        assertEquals(false, PredicateUtils.equalPredicate(new Integer(6)).evaluate(null));
        assertEquals(false, PredicateUtils.equalPredicate(new Integer(6)).evaluate(cObject));
        assertEquals(false, PredicateUtils.equalPredicate(new Integer(6)).evaluate(cString));
        assertEquals(true, PredicateUtils.equalPredicate(new Integer(6)).evaluate(cInteger));
    }

    // identityPredicate
    //------------------------------------------------------------------

    public void testIdentityPredicate() {
        assertSame(PredicateUtils.nullPredicate(), PredicateUtils.identityPredicate(null));
        assertNotNull(PredicateUtils.identityPredicate(new Integer(6)));
        assertEquals(false, PredicateUtils.identityPredicate(new Integer(6)).evaluate(null));
        assertEquals(false, PredicateUtils.identityPredicate(new Integer(6)).evaluate(cObject));
        assertEquals(false, PredicateUtils.identityPredicate(new Integer(6)).evaluate(cString));
        assertEquals(false, PredicateUtils.identityPredicate(new Integer(6)).evaluate(cInteger));
        assertEquals(true, PredicateUtils.identityPredicate(cInteger).evaluate(cInteger));
    }

    // truePredicate
    //------------------------------------------------------------------

    public void testTruePredicate() {
        assertNotNull(PredicateUtils.truePredicate());
        assertSame(PredicateUtils.truePredicate(), PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.truePredicate().evaluate(null));
        assertEquals(true, PredicateUtils.truePredicate().evaluate(cObject));
        assertEquals(true, PredicateUtils.truePredicate().evaluate(cString));
        assertEquals(true, PredicateUtils.truePredicate().evaluate(cInteger));
    }

    // falsePredicate
    //------------------------------------------------------------------

    public void testFalsePredicate() {
        assertNotNull(PredicateUtils.falsePredicate());
        assertSame(PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate());
        assertEquals(false, PredicateUtils.falsePredicate().evaluate(null));
        assertEquals(false, PredicateUtils.falsePredicate().evaluate(cObject));
        assertEquals(false, PredicateUtils.falsePredicate().evaluate(cString));
        assertEquals(false, PredicateUtils.falsePredicate().evaluate(cInteger));
    }

    // notPredicate
    //------------------------------------------------------------------

    public void testNotPredicate() {
        assertNotNull(PredicateUtils.notPredicate(PredicateUtils.truePredicate()));
        assertEquals(false, PredicateUtils.notPredicate(PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.notPredicate(PredicateUtils.truePredicate()).evaluate(cObject));
        assertEquals(false, PredicateUtils.notPredicate(PredicateUtils.truePredicate()).evaluate(cString));
        assertEquals(false, PredicateUtils.notPredicate(PredicateUtils.truePredicate()).evaluate(cInteger));
    }
    
    public void testNotPredicateEx() {
        try {
            PredicateUtils.notPredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // andPredicate
    //------------------------------------------------------------------

    public void testAndPredicate() {
        assertEquals(true, PredicateUtils.andPredicate(PredicateUtils.truePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.andPredicate(PredicateUtils.truePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.andPredicate(PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.andPredicate(PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
    }

    public void testAndPredicateEx() {
        try {
            PredicateUtils.andPredicate(null, null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // allPredicate
    //------------------------------------------------------------------

    public void testAllPredicate() {
        assertTrue(PredicateUtils.allPredicate(
            new Predicate[] {}).evaluate(null));
        assertEquals(true, PredicateUtils.allPredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.truePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.allPredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.allPredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.allPredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        Collection coll = new ArrayList();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        assertEquals(false, PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        assertFalse(PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        assertTrue(PredicateUtils.allPredicate(coll).evaluate(null));
        coll.clear();
        assertTrue(PredicateUtils.allPredicate(coll).evaluate(null));
    }

    public void testAllPredicateEx1() {
        try {
            PredicateUtils.allPredicate((Predicate[]) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAllPredicateEx2() {
        try {
            PredicateUtils.allPredicate(new Predicate[] {null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAllPredicateEx3() {
        try {
            PredicateUtils.allPredicate(new Predicate[] {null, null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAllPredicateEx4() {
        try {
            PredicateUtils.allPredicate((Collection) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAllPredicateEx5() {
        PredicateUtils.allPredicate(Collections.EMPTY_LIST);
    }
    
    public void testAllPredicateEx6() {
        try {
            Collection coll = new ArrayList();
            coll.add(null);
            coll.add(null);
            PredicateUtils.allPredicate(coll);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // orPredicate
    //------------------------------------------------------------------

    public void testOrPredicate() {
        assertEquals(true, PredicateUtils.orPredicate(PredicateUtils.truePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.orPredicate(PredicateUtils.truePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.orPredicate(PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.orPredicate(PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
    }
    
    public void testOrPredicateEx() {
        try {
            PredicateUtils.orPredicate(null, null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // anyPredicate
    //------------------------------------------------------------------

    public void testAnyPredicate() {
        assertFalse(PredicateUtils.anyPredicate(
            new Predicate[] {}).evaluate(null));
        assertEquals(true, PredicateUtils.anyPredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.truePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.anyPredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.anyPredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.anyPredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        Collection coll = new ArrayList();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        assertEquals(false, PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        assertFalse(PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        assertTrue(PredicateUtils.anyPredicate(coll).evaluate(null));
        coll.clear();
        assertFalse(PredicateUtils.anyPredicate(coll).evaluate(null));
    }

    public void testAnyPredicateEx1() {
        try {
            PredicateUtils.anyPredicate((Predicate[]) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAnyPredicateEx2() {
        try {
            PredicateUtils.anyPredicate(new Predicate[] {null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAnyPredicateEx3() {
        try {
            PredicateUtils.anyPredicate(new Predicate[] {null, null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAnyPredicateEx4() {
        try {
            PredicateUtils.anyPredicate((Collection) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAnyPredicateEx5() {
        PredicateUtils.anyPredicate(Collections.EMPTY_LIST);
    }
    
    public void testAnyPredicateEx6() {
        try {
            Collection coll = new ArrayList();
            coll.add(null);
            coll.add(null);
            PredicateUtils.anyPredicate(coll);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // eitherPredicate
    //------------------------------------------------------------------

    public void testEitherPredicate() {
        assertEquals(false, PredicateUtils.eitherPredicate(PredicateUtils.truePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.eitherPredicate(PredicateUtils.truePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.eitherPredicate(PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.eitherPredicate(PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
    }

    public void testEitherPredicateEx() {
        try {
            PredicateUtils.eitherPredicate(null, null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // onePredicate
    //------------------------------------------------------------------

    public void testOnePredicate() {
        assertFalse(PredicateUtils.onePredicate(
            new Predicate[] {}).evaluate(null));
        assertEquals(false, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.truePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.truePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.onePredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        Collection coll = new ArrayList();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(true, PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        assertEquals(false, PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        assertFalse(PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        assertTrue(PredicateUtils.onePredicate(coll).evaluate(null));
        coll.clear();
        assertFalse(PredicateUtils.onePredicate(coll).evaluate(null));
    }

    public void testOnePredicateEx1() {
        try {
            PredicateUtils.onePredicate((Predicate[]) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testOnePredicateEx2() {
        try {
            PredicateUtils.onePredicate(new Predicate[] {null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testOnePredicateEx3() {
        try {
            PredicateUtils.onePredicate(new Predicate[] {null, null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testOnePredicateEx4() {
        try {
            PredicateUtils.onePredicate((Collection) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testOnePredicateEx5() {
        PredicateUtils.onePredicate(Collections.EMPTY_LIST);
    }
    
    public void testOnePredicateEx6() {
        try {
            Collection coll = new ArrayList();
            coll.add(null);
            coll.add(null);
            PredicateUtils.onePredicate(coll);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // neitherPredicate
    //------------------------------------------------------------------

    public void testNeitherPredicate() {
        assertEquals(false, PredicateUtils.neitherPredicate(PredicateUtils.truePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.neitherPredicate(PredicateUtils.truePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
        assertEquals(false, PredicateUtils.neitherPredicate(PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.neitherPredicate(PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()).evaluate(null));
    }

    public void testNeitherPredicateEx() {
        try {
            PredicateUtils.neitherPredicate(null, null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // nonePredicate
    //------------------------------------------------------------------

    public void testNonePredicate() {
        assertTrue(PredicateUtils.nonePredicate(
            new Predicate[] {}).evaluate(null));
        assertEquals(false, PredicateUtils.nonePredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.truePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.nonePredicate(new Predicate[] {
            PredicateUtils.truePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(false, PredicateUtils.nonePredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.truePredicate()}).evaluate(null));
        assertEquals(true, PredicateUtils.nonePredicate(new Predicate[] {
            PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate(), PredicateUtils.falsePredicate()}).evaluate(null));
        Collection coll = new ArrayList();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.truePredicate());
        assertEquals(false, PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        coll.add(PredicateUtils.falsePredicate());
        assertEquals(true, PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.falsePredicate());
        assertTrue(PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        coll.add(PredicateUtils.truePredicate());
        assertFalse(PredicateUtils.nonePredicate(coll).evaluate(null));
        coll.clear();
        assertTrue(PredicateUtils.nonePredicate(coll).evaluate(null));
    }

    public void testNonePredicateEx1() {
        try {
            PredicateUtils.nonePredicate((Predicate[]) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testNonePredicateEx2() {
        try {
            PredicateUtils.nonePredicate(new Predicate[] {null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testNonePredicateEx3() {
        try {
            PredicateUtils.nonePredicate(new Predicate[] {null, null});
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testNonePredicateEx4() {
        try {
            PredicateUtils.nonePredicate((Collection) null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testNonePredicateEx5() {
        PredicateUtils.nonePredicate(Collections.EMPTY_LIST);
    }
    
    public void testNonePredicateEx6() {
        try {
            Collection coll = new ArrayList();
            coll.add(null);
            coll.add(null);
            PredicateUtils.nonePredicate(coll);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // instanceofPredicate
    //------------------------------------------------------------------

    public void testInstanceOfPredicate() {
        assertNotNull(PredicateUtils.instanceofPredicate(String.class));
        assertEquals(false, PredicateUtils.instanceofPredicate(String.class).evaluate(null));
        assertEquals(false, PredicateUtils.instanceofPredicate(String.class).evaluate(cObject));
        assertEquals(true, PredicateUtils.instanceofPredicate(String.class).evaluate(cString));
        assertEquals(false, PredicateUtils.instanceofPredicate(String.class).evaluate(cInteger));
    }

    // uniquePredicate
    //------------------------------------------------------------------

    public void testUniquePredicate() {
        Predicate p = PredicateUtils.uniquePredicate();
        assertEquals(true, p.evaluate(new Object()));
        assertEquals(true, p.evaluate(new Object()));
        assertEquals(true, p.evaluate(new Object()));
        assertEquals(true, p.evaluate(cString));
        assertEquals(false, p.evaluate(cString));
        assertEquals(false, p.evaluate(cString));
    }
    
    // asPredicate(Transformer)
    //------------------------------------------------------------------

    public void testAsPredicateTransformer() {
        assertEquals(false, PredicateUtils.asPredicate(TransformerUtils.nopTransformer()).evaluate(Boolean.FALSE));
        assertEquals(true, PredicateUtils.asPredicate(TransformerUtils.nopTransformer()).evaluate(Boolean.TRUE));
    }

    public void testAsPredicateTransformerEx1() {
        try {
            PredicateUtils.asPredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testAsPredicateTransformerEx2() {
        try {
            PredicateUtils.asPredicate(TransformerUtils.nopTransformer()).evaluate(null);
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }
    
    // invokerPredicate
    //------------------------------------------------------------------

    public void testInvokerPredicate() {
        List list = new ArrayList();
        assertEquals(true, PredicateUtils.invokerPredicate("isEmpty").evaluate(list));
        list.add(new Object());
        assertEquals(false, PredicateUtils.invokerPredicate("isEmpty").evaluate(list));
    }

    public void testInvokerPredicateEx1() {
        try {
            PredicateUtils.invokerPredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testInvokerPredicateEx2() {
        try {
            PredicateUtils.invokerPredicate("isEmpty").evaluate(null);
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }
    
    public void testInvokerPredicateEx3() {
        try {
            PredicateUtils.invokerPredicate("noSuchMethod").evaluate(new Object());
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }
    
    // invokerPredicate2
    //------------------------------------------------------------------

    public void testInvokerPredicate2() {
        List list = new ArrayList();
        assertEquals(false, PredicateUtils.invokerPredicate(
            "contains", new Class[] {Object.class}, new Object[] {cString}).evaluate(list));
        list.add(cString);
        assertEquals(true, PredicateUtils.invokerPredicate(
            "contains", new Class[] {Object.class}, new Object[] {cString}).evaluate(list));
    }

    public void testInvokerPredicate2Ex1() {
        try {
            PredicateUtils.invokerPredicate(null, null, null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    public void testInvokerPredicate2Ex2() {
        try {
            PredicateUtils.invokerPredicate("contains", new Class[] {Object.class}, new Object[] {cString}).evaluate(null);
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }
    
    public void testInvokerPredicate2Ex3() {
        try {
            PredicateUtils.invokerPredicate(
                "noSuchMethod", new Class[] {Object.class}, new Object[] {cString}).evaluate(new Object());
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }
    
    // nullIsException
    //------------------------------------------------------------------

    public void testNullIsExceptionPredicate() {
        assertEquals(true, PredicateUtils.nullIsExceptionPredicate(PredicateUtils.truePredicate()).evaluate(new Object()));
        try {
            PredicateUtils.nullIsExceptionPredicate(PredicateUtils.truePredicate()).evaluate(null);
        } catch (FunctorException ex) {
            return;
        }
        fail();
    }

    public void testNullIsExceptionPredicateEx1() {
        try {
            PredicateUtils.nullIsExceptionPredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // nullIsTrue
    //------------------------------------------------------------------

    public void testNullIsTruePredicate() {
        assertEquals(true, PredicateUtils.nullIsTruePredicate(PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.nullIsTruePredicate(PredicateUtils.truePredicate()).evaluate(new Object()));
        assertEquals(false, PredicateUtils.nullIsTruePredicate(PredicateUtils.falsePredicate()).evaluate(new Object()));
    }

    public void testNullIsTruePredicateEx1() {
        try {
            PredicateUtils.nullIsTruePredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // nullIsFalse
    //------------------------------------------------------------------

    public void testNullIsFalsePredicate() {
        assertEquals(false, PredicateUtils.nullIsFalsePredicate(PredicateUtils.truePredicate()).evaluate(null));
        assertEquals(true, PredicateUtils.nullIsFalsePredicate(PredicateUtils.truePredicate()).evaluate(new Object()));
        assertEquals(false, PredicateUtils.nullIsFalsePredicate(PredicateUtils.falsePredicate()).evaluate(new Object()));
    }

    public void testNullIsFalsePredicateEx1() {
        try {
            PredicateUtils.nullIsFalsePredicate(null);
        } catch (IllegalArgumentException ex) {
            return;
        }
        fail();
    }
    
    // transformed
    //------------------------------------------------------------------

    public void testTransformedPredicate() {
        assertEquals(true, PredicateUtils.transformedPredicate(
                TransformerUtils.nopTransformer(),
                PredicateUtils.truePredicate()).evaluate(new Object()));
                
        Map map = new HashMap();
        map.put(Boolean.TRUE, "Hello");
        Transformer t = TransformerUtils.mapTransformer(map);
        Predicate p = PredicateUtils.equalPredicate("Hello");
        assertEquals(false, PredicateUtils.transformedPredicate(t, p).evaluate(null));
        assertEquals(true, PredicateUtils.transformedPredicate(t, p).evaluate(Boolean.TRUE));
        try {
            PredicateUtils.transformedPredicate(null, null);
            fail();
        } catch (IllegalArgumentException ex) {}
    }

}

Other Commons Collections examples (source code examples)

Here is a short list of links related to this Commons Collections TestPredicateUtils.java source code file:
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