[ xmlunit-Bugs-1731980 ] XMLUnit say indentical xmls are different

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Bugs item #1731980, was opened at 2007-06-06 14:16
Message generated for change (Comment added) made by bodewig
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Category: None
Group: None
>Status: Closed
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Rooks (rooks_sf)
Assigned to: Nobody/Anonymous (nobody)
Summary: XMLUnit say indentical xmls are different

Initial Comment:
Consider the 2 attached xmls :

They are same but for whitespaces but following code says they are different.

    public static boolean compareFiles(File f1, File f2) throws Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document d1 = builder.parse(f1);

        DocumentBuilder builder1 = factory.newDocumentBuilder();
        Document d2 = builder1.parse(f2);

        Diff xmlDiff = XMLUnit.compareXML(d1, d2);
        debug("XML Diff :: " + xmlDiff.toString());
        return xmlDiff.identical() || xmlDiff.similar();
    }


The debug diff printed out is :

XML Diff :: org.custommonkey.xmlunit.Diff
[different] Expected number of child nodes '8' but was '9' - comparing <hierarchy...> at /hierarchy[1] to <hierarchy...> at /hierarchy[1]





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>Comment By: Stefan Bodewig (bodewig)
Date: 2007-06-08 13:27

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The two files you've attached are not identical, there is an additional
newline between the closing tag of namespaces and the opening one of
hierarchyVersion in exportHierarchy.

Whitespace between elements is significant unless you tell XMLUnit to
ignore it (which is what "nobody" suggested in the previous comment).

In the absence of a DTD or an XML Schema XMLUnit cannot know whether an
element supports mixed content so it cannot know whether the
whitespace-only text content is significant or not.  The default is to
assume that whitespace is significant.

Since you provide a Schema, it might work if you turn on validation on
your DocumentBuilder since this may suppress the whitespace node
completely.  I haven't tried that, though.

I'm closing the bug report as invalid since XMLUnit behaves as expected.

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Comment By: Nobody/Anonymous (nobody)
Date: 2007-06-08 10:34

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Add the following line b4 u do the comparison:
XMLUnit.setIgnoreWhitespace(true);

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Comment By: Rooks (rooks_sf)
Date: 2007-06-06 14:19

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This happens in both 1.0 and XMLUnit 1.1 beta 2.

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Comment By: Rooks (rooks_sf)
Date: 2007-06-06 14:17

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File Added: testExportHierarchy_Output.xml

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