[jira] [Commented] (SPARK-38719) Test the error class: CANNOT_CAST_DATATYPE

["Jayadeep Jayaraman (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-38719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17646938#comment-17646938 ] 

Jayadeep Jayaraman commented on SPARK-38719:
--------------------------------------------

Hi [~maxgekk] - I would like to work on this task. Let me know if that would be okay.

> Test the error class: CANNOT_CAST_DATATYPE
> ------------------------------------------
>
>                 Key: SPARK-38719
>                 URL: https://issues.apache.org/jira/browse/SPARK-38719
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Max Gekk
>            Priority: Minor
>              Labels: starter
>
> Add at least one test for the error class *CANNOT_CAST_DATATYPE* to QueryExecutionErrorsSuite. The test should cover the exception throw in QueryExecutionErrors:
> {code:scala}
>   def cannotCastFromNullTypeError(to: DataType): Throwable = {
>     new SparkException(errorClass = "CANNOT_CAST_DATATYPE",
>       messageParameters = Array(NullType.typeName, to.typeName), null)
>   }
> {code}
> For example, here is a test for the error class *UNSUPPORTED_FEATURE*: https://github.com/apache/spark/blob/34e3029a43d2a8241f70f2343be8285cb7f231b9/sql/core/src/test/scala/org/apache/spark/sql/errors/QueryCompilationErrorsSuite.scala#L151-L170
> +The test must have a check of:+
> # the entire error message
> # sqlState if it is defined in the error-classes.json file
> # the error class



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