Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/13727#discussion_r67575918
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala
---
@@ -228,4 +220,101 @@ class DataFrameReaderWriterSuite extends QueryTest
with SharedSQLContext {
}
}
}
+
+ test("load API") {
+ spark.read.format("org.apache.spark.sql.test").load()
+ spark.read.format("org.apache.spark.sql.test").load(input)
+ spark.read.format("org.apache.spark.sql.test").load(input, input,
input)
+ spark.read.format("org.apache.spark.sql.test").load(Seq(input, input):
_*)
+ Option(input).map(spark.read.format("org.apache.spark.sql.test").load)
+ }
+
+ test("text - API and common behavior") {
+ // Reader, without user specified schema
+ assert(spark.read.text().schema === textSchema)
+ assert(spark.read.text(input).schema === textSchema)
+ assert(spark.read.text(input, input, input).schema === textSchema)
+ assert(spark.read.text(Seq(input, input): _*).schema === textSchema)
+ assert(Option(input).map(spark.read.text).get.schema === textSchema)
// SPARK-16009
+
+ // Reader, with user specified schema
+ assert(spark.read.schema(userSchema).text().schema === userSchema)
+ assert(spark.read.schema(userSchema).text(input).schema === userSchema)
+ assert(spark.read.schema(userSchema).text(input, input, input).schema
=== userSchema)
+ assert(spark.read.schema(userSchema).text(Seq(input, input):
_*).schema === userSchema)
+
+ // Writer
+ spark.read.text().write.text(output)
+ }
+
+ test("textFile - API and common behavior") {
+ // Reader, without user specified schema
+ assert(spark.read.textFile().schema === textSchema)
+ assert(spark.read.textFile(input).schema === textSchema)
+ assert(spark.read.textFile(input, input, input).schema === textSchema)
+ assert(spark.read.textFile(Seq(input, input): _*).schema ===
textSchema)
--- End diff --
What happens if you specify a schema here?
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