Github user zentol commented on the pull request:
https://github.com/apache/incubator-flink/pull/44#issuecomment-47366280
if you use ```Assert.assertEquals(fullTuple2.f0, swappedTuple2.f1)``` the
test will fail if they are not the same, just as your current code. you save
six lines, and it's more obvious what you want to check.
your test is supposed to make sure that the swapped values are equal, thus
you should check exactly that.
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