John Zhuge created HDFS-9633:
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Summary: Test SnapshotDiffReport file path corner cases
Key: HDFS-9633
URL: https://issues.apache.org/jira/browse/HDFS-9633
Project: Hadoop HDFS
Issue Type: Test
Reporter: John Zhuge
Assignee: John Zhuge
Priority: Minor
SnapshotDiffReport design uses "file path" (instead of "inode ID + file path"
as one example) to represent each diff entry. This can leads to some strange
scenarios.
* DeleteRecreate: Delete a file, then create a new file of the same name.
* CircularRenames: Rename file "a" to "tmp", rename "b" to "a", then rename
"tmp" to "b".
Add more unit tests to verify these corner cases.
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