001    // Copyright 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.web;
016    
017    import java.util.ArrayList;
018    import java.util.Collections;
019    import java.util.Enumeration;
020    import java.util.List;
021    
022    import org.apache.tapestry.BaseComponentTestCase;
023    import org.testng.annotations.Test;
024    
025    /**
026     * Tests for {@link org.apache.tapestry.web.WebUtils}.
027     * 
028     * @author Howard M. Lewis Ship
029     * @since 4.0
030     */
031    @Test
032    public class TestWebUtils extends BaseComponentTestCase
033    {
034        public void testToSortedList()
035        {
036            List l = new ArrayList();
037            l.add("Fred");
038            l.add("Barney");
039            Enumeration e = Collections.enumeration(l);
040    
041            l = WebUtils.toSortedList(e);
042    
043            assertEquals(2, l.size());
044            assertEquals("Barney", l.get(0));
045            assertEquals("Fred", l.get(1));
046    
047            // Make sure its not modifiable.
048    
049            try
050            {
051                l.add("Wilma");
052                unreachable();
053            }
054            catch (UnsupportedOperationException ex)
055            {
056                // That's expected.
057            }
058        }
059    
060        public void testToSortedListEmpty()
061        {
062            List l = new ArrayList();
063            Enumeration e = Collections.enumeration(l);
064    
065            List sorted = WebUtils.toSortedList(e);
066    
067            assertSame(Collections.EMPTY_LIST, sorted);
068        }
069    }