01: /*
02: ******************************************************************
03: Copyright (c) 2001-2007, Jeff Martin, Tim Bacon
04: All rights reserved.
05:
06: Redistribution and use in source and binary forms, with or without
07: modification, are permitted provided that the following conditions
08: are met:
09:
10: * Redistributions of source code must retain the above copyright
11: notice, this list of conditions and the following disclaimer.
12: * Redistributions in binary form must reproduce the above
13: copyright notice, this list of conditions and the following
14: disclaimer in the documentation and/or other materials provided
15: with the distribution.
16: * Neither the name of the xmlunit.sourceforge.net nor the names
17: of its contributors may be used to endorse or promote products
18: derived from this software without specific prior written
19: permission.
20:
21: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24: FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25: COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27: BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28: LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29: CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31: ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32: POSSIBILITY OF SUCH DAMAGE.
33:
34: ******************************************************************
35: */
36:
37: package org.custommonkey.xmlunit.examples;
38:
39: import org.custommonkey.xmlunit.NodeTest;
40: import org.custommonkey.xmlunit.NodeTestException;
41: import org.custommonkey.xmlunit.NodeTester;
42: import org.w3c.dom.Node;
43:
44: /**
45: * Counts the number of nodes in a document to allow assertions to be made
46: * using a NodeTest.
47: * <br />Examples and more at <a href="http://xmlunit.sourceforge.net"/>xmlunit.sourceforge.net</a>
48: * @see NodeTest
49: */
50: public class CountingNodeTester implements NodeTester {
51: private final int expectedNumNodes;
52: private int actualNumNodes;
53:
54: public CountingNodeTester(int expectedNumNodes) {
55: this .expectedNumNodes = expectedNumNodes;
56: }
57:
58: /**
59: * A single Node is always valid
60: * @param aNode
61: * @param forTest
62: */
63: public void testNode(Node aNode, NodeTest forTest) {
64: actualNumNodes++;
65: }
66:
67: /**
68: * Called by NodeTest when all nodes have been iterated over: time to see
69: * if all the nodes that were expected were found.
70: * Note that this method also invokes {@link #resetCounter resetCounter}
71: * so that the instance can be reused.
72: * @exception true if expected num nodes == actual num nodes,
73: * false otherwise
74: */
75: public void noMoreNodes(NodeTest forTest) throws NodeTestException {
76: int testedNodes = actualNumNodes;
77: resetCounter();
78: if (testedNodes != expectedNumNodes) {
79: throw new NodeTestException("Counted " + testedNodes
80: + " node(s) but expected " + expectedNumNodes);
81: }
82: }
83:
84: /**
85: * Reset the counter so that an instance can be reused for another
86: * <code>NodeTest</code>
87: */
88: public void resetCounter() {
89: actualNumNodes = 0;
90: }
91: }
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