org.apache.spark.sql.execution.streaming.CheckpointFileManagerSuite

(It is not a test it is a sbt.testing.SuiteSelector)

CheckpointFileManager.create() should fallback from FileContext to FileSystem

CheckpointFileManager.create() should pick up user-specified class from conf

create() should fallback from FileContext to FileSystem

create() should pick up user-specified class from conf