wForget commented on code in PR #47410:
URL: https://github.com/apache/spark/pull/47410#discussion_r1683712701
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala:
##########
@@ -520,6 +520,10 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
withSQLConf(SQLConf.CHUNK_BASE64_STRING_ENABLED.key -> "true") {
checkEvaluation(Base64(Literal(longString.getBytes)), chunkEncoded)
}
+
+ // check if unbase64 works well for chunked and non-chunked encoded strings
+ checkEvaluation(StringDecode(UnBase64(Literal(encoded)),
Literal("utf-8")), longString)
+ checkEvaluation(StringDecode(UnBase64(Literal(chunkEncoded)),
Literal("utf-8")), longString)
Review Comment:
I added this case to confirm that the chunkEncoded string can be decoded
correctly. cc @cloud-fan
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