FYI we merged a patch that improves unit test log debugging. In order for that to work, all test suites have been changed to extend SparkFunSuite instead of ScalaTest's FunSuite. We also added a rule in the Scala style checker to fail Jenkins if FunSuite is used.
The patch that introduced SparkFunSuite: https://github.com/apache/spark/pull/6441 Style check patch: https://github.com/apache/spark/pull/6510
