Boone Gorges 1fcb79f008 Use assertEqualSets() for a few taxonomy-related tests.
assertEquals() was causing problems in environments where the tests take more
than one second to run, thereby causing results to be returned in the incorrect
order.

git-svn-id: https://develop.svn.wordpress.org/trunk@29888 602fd350-edb4-49c9-b593-d223f7449a82
2014-10-14 00:18:28 +00:00
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