Github user andralungu commented on the pull request: https://github.com/apache/flink/pull/847#issuecomment-113213190 This looks very nice! Someone deserves a virtual :ice_cream: ! There are some tests missing: - test `fromCSV` with a Mapper - you just test `types`, `ignoreFirstLines` and `ignoreComments`; let's at least add tests for the `lineDelimiter*` and the `fieldDelimiter*` methods. I'm sure they work, but tests are written to guarantee that the functionality will also be there (at the same quality) in the future (i.e. some exotic code addition will not break it) :) I saw an outdated Vasia comment on an unused import; always hit mvn verify before pushing - it would have caught that :D
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