The idea here is that you'll be able to feed data through an extractor
to a FakeExtractorOutput, then do the same again with some or all of the
simulated flakiness settings toggled on FakeExtractorInput, and then
assert that the output was the same in both cases.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=117224019
