Github user frreiss commented on a diff in the pull request:
https://github.com/apache/spark/pull/14151#discussion_r74805700
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/text/TextSuite.scala
---
@@ -39,6 +39,11 @@ class TextSuite extends QueryTest with SharedSQLContext {
verifyFrame(spark.read.text(testFile))
}
+ test("reading text file with wholetext option on") {
--- End diff --
As far as I'm aware, the most common use case for reading entire files is
using a glob to read a directory or directory tree containing multiple files.
For example, one might download the Enron corpus (see
[https://www.cs.cmu.edu/~./enron/]), which comes packaged with one file per
email message. With a large number of files on the input, it's important that
the work of processing the files be split among many cores. So the test for the
`wholetext` option really should have multiple input files and verify that
different files end up in different partitions of the resulting RDD or
Dataframe.
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