IQSS / dataverse / #30195

25%

develop: 25%

Pull #12690

github

Cover the S3 and Swift cleanup paths

S3AccessIO already takes an injected client, so its cleanup needs no
production change: a mocked listing with per-object timestamps drives it.

Swift has no such seam, so swiftContainer drops private to package-private
and the test supplies a mocked container. Setting isWriteAccess directly
keeps open() out of the way in both.

That leaves the resource method and the overlay delegation uncovered, both
of which need the container to reach.

22 of 32 new or added lines in 8 files covered. (68.75%)

24464 of 95956 relevant lines covered (25.5%)

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