Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1823#issuecomment-199506835
Thanks for the PR @ramkrish86
Looks good. Just one minor thing. Can you add a one line comment to each
test that explains why the program should fail such as the tests
`testNonWorkingSubstring1()` and `testNonWorkingSubstring2()`? Thanks!
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