Validate successful metadata fetch for direct dependencies #5392
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Summary
Prior to this change, the resolver would panic if we ran with
--offline
and--no-deps
and we had cached metadata for a package (i.e., the versions) but no cached metadata for the distribution (i.e., the specific wheel), since we weren't validating that the returned metadata in the--no-deps
case was actually successful. (We need metadata, even for--no-deps
, so that we can validate extras.)Test Plan
The added test panics on the previous branch.