Commons Collections example source code file (TestSingletonMap.java)

This example Commons Collections source code file (TestSingletonMap.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

integer, map, object, object, one, singletonmap, singletonmap, string, string, ten, testsingletonmap, twenty, two, two, util

The Commons Collections TestSingletonMap.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.map;

import java.util.HashMap;
import java.util.Map;

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

import org.apache.commons.collections.BoundedMap;
import org.apache.commons.collections.BulkTest;
import org.apache.commons.collections.KeyValue;

/**
 * JUnit tests.
 * 
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Stephen Colebourne
 */
public class TestSingletonMap extends AbstractTestOrderedMap {

    private static final Integer ONE = new Integer(1);
    private static final Integer TWO = new Integer(2);
    private static final String TEN = "10";
    private static final String TWENTY = "20";
        
    public TestSingletonMap(String testName) {
        super(testName);
    }

    public static void main(String[] args) {
        TestRunner.run(suite());
    }
    
    public static Test suite() {
        return BulkTest.makeSuite(TestSingletonMap.class);
    }

    //-----------------------------------------------------------------------
    public Map makeEmptyMap() {
        // need an empty singleton map, but thats not possible
        // use a ridiculous fake instead to make the tests pass
        return UnmodifiableOrderedMap.decorate(ListOrderedMap.decorate(new HashMap()));
    }
    
    public String[] ignoredTests() {
        // the ridiculous map above still doesn't pass these tests
        // but its not relevant, so we ignore them
        return new String[] {
            "TestSingletonMap.bulkTestMapIterator.testEmptyMapIterator",
            "TestSingletonMap.bulkTestOrderedMapIterator.testEmptyMapIterator",
        };
    }


    public Map makeFullMap() {
        return new SingletonMap(ONE, TWO);
    }

    public boolean isPutAddSupported() {
        return false;
    }

    public boolean isRemoveSupported() {
        return false;
    }

    public Object[] getSampleKeys() {
        return new Object[] {ONE};
    }

    public Object[] getSampleValues() {
        return new Object[] {TWO};
    }

    public Object[] getNewSampleValues() {
        return new Object[] {TEN};
    }

    //-----------------------------------------------------------------------
    public void testClone() {
        SingletonMap map = new SingletonMap(ONE, TWO);
        assertEquals(1, map.size());
        SingletonMap cloned = (SingletonMap) map.clone();
        assertEquals(1, cloned.size());
        assertEquals(true, cloned.containsKey(ONE));
        assertEquals(true, cloned.containsValue(TWO));
    }

    public void testKeyValue() {
        SingletonMap map = new SingletonMap(ONE, TWO);
        assertEquals(1, map.size());
        assertEquals(ONE, map.getKey());
        assertEquals(TWO, map.getValue());
        assertTrue(map instanceof KeyValue);
    }

    public void testBoundedMap() {
        SingletonMap map = new SingletonMap(ONE, TWO);
        assertEquals(1, map.size());
        assertEquals(true, map.isFull());
        assertEquals(1, map.maxSize());
        assertTrue(map instanceof BoundedMap);
    }

    //-----------------------------------------------------------------------
//    public BulkTest bulkTestMapIterator() {
//        return new TestFlatMapIterator();
//    }
//    
//    public class TestFlatMapIterator extends AbstractTestOrderedMapIterator {
//        public TestFlatMapIterator() {
//            super("TestFlatMapIterator");
//        }
//        
//        public Object[] addSetValues() {
//            return TestSingletonMap.this.getNewSampleValues();
//        }
//        
//        public boolean supportsRemove() {
//            return TestSingletonMap.this.isRemoveSupported();
//        }
//
//        public boolean supportsSetValue() {
//            return TestSingletonMap.this.isSetValueSupported();
//        }
//
//        public MapIterator makeEmptyMapIterator() {
//            resetEmpty();
//            return ((Flat3Map) TestSingletonMap.this.map).mapIterator();
//        }
//
//        public MapIterator makeFullMapIterator() {
//            resetFull();
//            return ((Flat3Map) TestSingletonMap.this.map).mapIterator();
//        }
//        
//        public Map getMap() {
//            // assumes makeFullMapIterator() called first
//            return TestSingletonMap.this.map;
//        }
//        
//        public Map getConfirmedMap() {
//            // assumes makeFullMapIterator() called first
//            return TestSingletonMap.this.confirmed;
//        }
//        
//        public void verify() {
//            super.verify();
//            TestSingletonMap.this.verify();
//        }
//    }
    
    public String getCompatibilityVersion() {
        return "3.1";
    }

//    public void testCreate() throws Exception {
//        resetEmpty();
//        writeExternalFormToDisk(
//            (java.io.Serializable) map,
//            "D:/dev/collections/data/test/SingletonMap.emptyCollection.version3.1.obj");
//        resetFull();
//        writeExternalFormToDisk(
//            (java.io.Serializable) map,
//            "D:/dev/collections/data/test/SingletonMap.fullCollection.version3.1.obj");
//    }
}