Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/16365#discussion_r130261853
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/types/DataTypeSuite.scala ---
@@ -184,14 +184,17 @@ class DataTypeSuite extends SparkFunSuite {
test("merge where right contains type conflict") {
val left = StructType(
StructField("a", LongType) ::
- StructField("b", FloatType) :: Nil)
+ StructField("conflictColumn", FloatType) :: Nil)
val right = StructType(
- StructField("b", LongType) :: Nil)
+ StructField("conflictColumn", LongType) :: Nil)
- intercept[SparkException] {
+ val message = intercept[SparkException] {
left.merge(right)
- }
+ }.getMessage
+ assert(message.contains("conflictColumn"))
--- End diff --
Could we capture the whole message? It can help us review the error message.
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