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