AnzhiZhang commented on code in PR #4006:
URL: https://github.com/apache/texera/pull/4006#discussion_r2512787185
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common/workflow-operator/src/main/scala/org/apache/amber/operator/visualization/barChart/BarChartOpDesc.scala:
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@@ -88,8 +92,8 @@ class BarChartOpDesc extends PythonOperatorDescriptor {
)
def manipulateTable(): String = {
- assert(value.nonEmpty)
- assert(fields.nonEmpty)
+ assert(value.nonEmpty, "Value column cannot be empty")
+ assert(fields.nonEmpty, "Fields cannot be empty")
Review Comment:
When this assertion fails, the user will see an empty assertion error in the
frontend. This gives the user a message with that message.
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