WweiL commented on code in PR #47932:
URL: https://github.com/apache/spark/pull/47932#discussion_r1801670073
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sql/core/src/test/scala/org/apache/spark/sql/streaming/resources/testCommitLogV1/testCommitLog:
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@@ -0,0 +1,2 @@
+v1
+{"nextBatchWatermarkMs":1,"stateUniqueIds":{}}
Review Comment:
This is the golden file generation mechanism, a pretty common pattern used
in Spark:
https://github.com/apache/spark/blob/master/core/src/test/scala/org/apache/spark/SparkFunSuite.scala#L91
See example usage here:
https://github.com/apache/spark/blob/master/core/src/test/scala/org/apache/spark/SparkThrowableSuite.scala#L95
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