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Java > Open Source Codes > com > hp > hpl > jena > util > iterator > test > TestNullIterator


1 /*
2   (c) Copyright 2004, 2005 Hewlett-Packard Development Company, LP, all rights reserved.
3   [See end of file]
4   $Id: TestNullIterator.java,v 1.2 2005/02/21 12:19:19 andy_seaborne Exp $
5 */
6 package com.hp.hpl.jena.util.iterator.test;
7
8 import java.util.NoSuchElementException JavaDoc;
9
10 import junit.framework.*;
11
12 import com.hp.hpl.jena.rdf.model.test.ModelTestBase;
13 import com.hp.hpl.jena.util.iterator.*;
14
15 /**
16  TestNullIterator
17  @author kers
18  */
19 public class TestNullIterator extends ModelTestBase
20     {
21     public TestNullIterator( String JavaDoc name ) { super( name ); }
22     
23     public static TestSuite suite()
24         { return new TestSuite( TestNullIterator.class ); }
25     
26     public void testHasntNext()
27         { assertFalse( NullIterator.instance.hasNext() ); }
28     
29     public void testNextFails()
30         { try
31             { NullIterator.instance.next(); fail( "should throw NoSuchElementException" ); }
32         catch (NoSuchElementException JavaDoc e) { pass(); }
33         }
34     
35     public void testAndThenReturnsArgument()
36         {
37         ExtendedIterator it = new NiceIterator();
38         assertSame( it, NullIterator.instance.andThen( it ) );
39         }
40     }
41
42
43 /*
44     (c) Copyright 2004, 2005 Hewlett-Packard Development Company, LP
45     All rights reserved.
46
47     Redistribution and use in source and binary forms, with or without
48     modification, are permitted provided that the following conditions
49     are met:
50
51     1. Redistributions of source code must retain the above copyright
52     notice, this list of conditions and the following disclaimer.
53
54     2. Redistributions in binary form must reproduce the above copyright
55     notice, this list of conditions and the following disclaimer in the
56     documentation and/or other materials provided with the distribution.
57
58     3. The name of the author may not be used to endorse or promote products
59     derived from this software without specific prior written permission.
60
61     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
62     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
63     OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
64     IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
65     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
66     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
67     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
68     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
69     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
70     THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
71 */
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