Re: [Xmlunit-general] Test similarity with out of order nested elements

[Oliver S. <oli...@gm...>]

As an interim solution I ordered the generated tables and rows. I ran into some problems with different lexicographic orderings on Oracle and Java though, so the problem still persists.

I guess the problem I have is with the documentation is that   http://xmlunit.sourceforge.net/api/org/custommonkey/xmlunit/Diff.html#similar() states that

> Two documents are considered to be "similar" if they contain the same elements and attributes regardless of order.

My first thought was: "That's what I need" as it also met my expectations on how the tool should work out of the box. It should be able to do similarity checks  disregarding all ordering. I think Oxygen offers an option to do that (but thats no Java).



I will have to look into implementing my own ElementQualifier but I think that this is a use case which should be covered by XMLUnit.

Thanks
Oliver




Am 24.10.2011 um 15:39 schrieb Stefan Bodewig:

> On 2011-10-24, Oliver Schrenk wrote:
> 
>> I'm trying to write a XMLUnitTest that compares to XMLDocuments that basically have to layers of elements, that can be out of order.
> 
>> 	<root>
>> 		<table>
>> 			<id>1</id>
>> 			<row>
>> 				<c>a</c >
>> 				<c>b</c >
>> 			</row>
>> 		</table>
>> 		<table>
>> 			<id>2</id>
>> 			<row>
>> 				<c>b</c >
>> 				<c>a</c >
>> 			</row>
>> 		</table>
>> 	</root>
> 
> This - like most any question on XMLUnit we've had in a long while,
> seems we need better docs - boils down to ElementQualifiers.  You must
> help XMLUnit to pick the correct branches to compare.
> 
> For your use-case neither of the built-in ElementQualifiers will do.
> You'll have to write one yourself but that shouldn't be too hard.
> 
> If the two elements you are comparing are both <table>-elements, then
> look into the text content of the only id child and say they are only
> qualified to be compared it those contents match.  For any other element
> you can re-use the logic (or even an instance) of
> ElementAndTextQualifier as it will pick the correct <c> elements to
> compare.
> 
> HTH
> 
>        Stefan
> 
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