himadripal commented on code in PR #1385:
URL: https://github.com/apache/datafusion-comet/pull/1385#discussion_r1987983268
##########
spark/src/test/scala/org/apache/comet/CometCastSuite.scala:
##########
@@ -1210,27 +1213,36 @@ class CometCastSuite extends CometTestBase with
AdaptiveSparkPlanHelper {
val cometMessage =
if (cometException.getCause != null)
cometException.getCause.getMessage
else cometException.getMessage
- if (CometSparkSessionExtensions.isSpark40Plus) {
- // for Spark 4 we expect to sparkException carries the message
+ // for comet decimal conversion throws ArrowError(string) from
arrow - across spark versions the message dont match.
+ if (df.schema("a").dataType.typeName.contains("decimal") &&
toType.typeName
+ .contains("decimal")) {
assert(
- sparkException.getMessage
- .replace(".WITH_SUGGESTION] ", "]")
- .startsWith(cometMessage))
- } else if (CometSparkSessionExtensions.isSpark34Plus) {
- // for Spark 3.4 we expect to reproduce the error message
exactly
- assert(cometMessage == sparkMessage)
+ cometMessage.contains("too large to store"),
+ sparkMessage.contains("cannot be represented as"))
Review Comment:
my though was `false == false` is valid use case, in case some other
exception happened in spark other than "can not be represented", then comet
should also throw some other exception, not "too large to store". I can
probably make it explicit by putting the assert inside if.
```scala
if (sparkMessage.contains("cannot be represented as") {
assert(cometMessage.contains("too large to store"))
}
```
WDYT?
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