Add error handling tests for the S3 driver DeleteFiles method and fix multiError capture
requested to merge 10-deletefiles-error-handling-tests into 10-optimize-the-s3-storage-driver-s-delete-function
Context
This change is part of !24 (merged) and related to #10 (closed).
Change
Leveraging on !34 (merged), this MR adds error handling tests for the S3 storage driver DeleteFiles method.
After writing the tests I found that multiError errors were not being expanded correctly. This is fixed in this MR as well.
Edited by João Pereira