Compare two XML strings ignoring element order

java unit-testing junit xmlunit
Roay Spol picture Roay Spol · May 14, 2013 · Viewed 34.6k times · Source

Suppose I have two xml strings

<test>
  <elem>a</elem>
  <elem>b</elem>
</test>

<test>
  <elem>b</elem>
  <elem>a</elem>
</test>

How to write a test that compares those two strings and ignores the element order?

I want the test to be as short as possible, no place for 10-line XML parsing etc. I'm looking for a simple assertion or something similar.

I have this (which doesn't work)

   Diff diff = XMLUnit.compareXML(expectedString, actualString);   
   XMLAssert.assertXMLEqual("meh", diff, true);

Answer

Akzidenzgrotesk picture Akzidenzgrotesk · Feb 3, 2016

For xmlunit 2.0 (I was looking for this) it is now done, by using DefaultNodeMatcher

Diff diff = Diffbuilder.compare(Input.fromFile(control))
   .withTest(Input.fromFile(test))
   .withNodeMatcher(new DefaultNodeMatcher(ElementSelectors.byNameAndText))
   .build()

Hope this helps this helps other people googling...

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