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Java > Open Source Codes > com > db4o > db4ounit > common > foundation > TreeKeyIteratorTestCase


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 package com.db4o.db4ounit.common.foundation;
22
23 import com.db4o.*;
24 import com.db4o.db4ounit.common.btree.*;
25 import com.db4o.foundation.*;
26
27 import db4ounit.*;
28
29
30 public class TreeKeyIteratorTestCase implements TestCase {
31
32     public static void main(String JavaDoc[] args) {
33         new TestRunner(TreeKeyIteratorTestCase.class).run();
34     }
35     
36     private static int[] VALUES = new int[]{1, 3, 5, 7, 9, 10, 11, 13, 24, 76};
37     
38     public void testIterate(){
39         for (int i = 1; i <= VALUES.length; i++) {
40             assertIterateValues(VALUES, i);
41         }
42     }
43     
44     public void testMoveNextAfterCompletion(){
45         Iterator4 i = new TreeKeyIterator(createTree(VALUES));
46         while(i.moveNext()){
47             
48         }
49         Assert.isFalse(i.moveNext());
50     }
51     
52     private void assertIterateValues(int[] values, int count) {
53         int[] testValues = new int[count];
54         System.arraycopy(values, 0, testValues, 0, count);
55         assertIterateValues(testValues);
56     }
57
58     private void assertIterateValues(int[] values) {
59         ExpectingVisitor expectingVisitor = new ExpectingVisitor(IntArrays4.toObjectArray(values), true, false);
60         Iterator4 i = new TreeKeyIterator(createTree(values));
61         while(i.moveNext()){
62             expectingVisitor.visit(i.current());
63         }
64         expectingVisitor.assertExpectations();
65     }
66     
67     private Tree createTree(int[] values){
68         Tree tree = new TreeInt(values[0]);
69         for (int i = 1; i < values.length; i++) {
70             tree = tree.add(new TreeInt(values[i]));
71         }
72         return tree;
73     }
74     
75     public void testEmpty(){
76         Iterator4 i = new TreeKeyIterator(null);
77         Assert.isFalse(i.moveNext());
78     }
79
80
81 }
82
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