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Compare two xml files using Junit

Answer 1

+1 A:

Get the string representations of the XML (toString) and compare those.

Oded 2010-10-14 08:05:07

Answer 2

A:

There are tools that exist for this purpose, e.g. http://xmlunit.sourceforge.net/

XMLUnit can ignore whitespace and formatting which I would imagine are immaterial and will also handle comparing

<stuff/>

and

<stuff></stuff>

David 2010-10-14 08:26:24

Thanks for the reply. Can I know how to get the instance of the same file at different time. I mean before and after the change occurred in xml file.

Senthil 2010-10-14 09:44:06

You could create a duplicate file prior to the change and then compare the two? See http://stackoverflow.com/questions/106770/standard-concise-way-to-copy-a-file-in-java for copying files. Or you could hold the contents in memory if they were small enough.

David 2010-10-14 13:57:39

I have another test case scenario in which I compare two files. One is the actual file which i modify and the another one is expected file ie. the file would have the expected outout. If I use the assertbinaryEquals or assertEquals method of FileAssert class, I am getting testcase failure even if the content in both the files are equal. May I know what is the reason and why it is not working ?

Senthil 2010-10-15 06:08:05

Does the exception thrown (AssertionFailedError) give you any information on this? To hazard a guess, the file attributes (last modified, etc) might be different? I'm afraid I don't know how far the comparison goes. You could avoid using FileAssert altogether if you read the files in as strings.

David 2010-10-18 10:02:29

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Compare two xml files using Junit

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