codecov[bot]
commented
5 months ago Codecov Report
All modified and coverable lines are covered by tests :white_check_mark:
Project coverage is 73.43%. Comparing base (
ba58ec7) to head (8799b3b).
Additional details and impacted files
```diff @@ Coverage Diff @@ ## master #3445 +/- ## ========================================== + Coverage 73.40% 73.43% +0.02% ========================================== Files 113 113 Lines 14948 14950 +2 ========================================== + Hits 10973 10978 +5 + Misses 3201 3198 -3 Partials 774 774 ```:umbrella: View full report in Codecov by Sentry.
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I found that when we're downloading an a gzipped object with
Content-Encoding: gzip, AZB is transparently sending back an uncompressed object rather than the gzipped object, and when this happens, I also discovered that go-cloud fails and panics because the Content-Length and the Content-Range fields are not set in this situation.To gracefully handle this, check if the ContentLength field is nil before using it, and return 0 if both ContentRange and ContentLength are missing. This unfortunately does mean
Size()may return 0 in some cases, but I don't see a good way to fix that without a bigger change in design. With this patch, I can confirm our issue is resolved.Unfortunately, I did not see a good reference for how I could write a unit test for this. It seems existing conformance tests rely on a live bucket, and there's no unit tests that mock the underlying response or server for any of the existing drivers that I could reference either. If you have a suggestion for testing, let me know, but currently no new tests are added as part of this PR.