yikf commented on a change in pull request #31510:
URL: https://github.com/apache/spark/pull/31510#discussion_r571615032
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala
##########
@@ -28,7 +28,7 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
test("concat") {
def testConcat(inputs: String*): Unit = {
val expected = if (inputs.contains(null)) null else inputs.mkString
- checkEvaluation(Concat(inputs.map(Literal.create(_, StringType))),
expected, EmptyRow)
+ checkEvaluation(Concat(inputs.map(Literal.create(_, StringType))),
expected)
Review comment:
For reviewer, method of the `checkEvaluation` as follow:
`protected def checkEvaluation(
expression: => Expression, expected: Any, inputRow: InternalRow =
EmptyRow): Unit`
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