blob: be71e50fbb90cf5cc5af17d17d55050af0ea5800 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright 2005 The Apache Software Foundation.
*
* Licensed 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.
*/
/* $Id$ */
package org.apache.fop.layoutengine;
import javax.xml.transform.TransformerException;
import org.apache.xpath.XPathAPI;
import org.apache.xpath.objects.XObject;
import org.w3c.dom.Node;
/**
* Simple check that requires an XPath expression to evaluate to true.
*/
public class EvalCheck implements LayoutEngineCheck {
private String expected;
private String xpath;
/**
* Creates a new instance
* @param expected expected value
* @param xpath XPath statement that needs to be evaluated
*/
public EvalCheck(String expected, String xpath) {
this.expected = expected;
this.xpath = xpath;
}
/**
* Creates a new instance from a DOM node.
* @param node DOM node that defines this check
*/
public EvalCheck(Node node) {
this.expected = node.getAttributes().getNamedItem("expected").getNodeValue();
this.xpath = node.getAttributes().getNamedItem("xpath").getNodeValue();
}
/** @see org.apache.fop.layoutengine.LayoutEngineCheck */
public void check(LayoutResult result) {
XObject res;
try {
res = XPathAPI.eval(result.getAreaTree(), xpath);
} catch (TransformerException e) {
throw new RuntimeException("XPath evaluation failed: " + e.getMessage());
}
String actual = res.str(); //Second str() seems to fail. D'oh!
if (!expected.equals(actual)) {
throw new RuntimeException(
"Expected XPath expression to evaluate to '" + expected + "', but got '"
+ actual + "' (" + this + ")");
}
}
/** @see java.lang.Object#toString() */
public String toString() {
return "XPath: " + xpath;
}
}
|
