Test #4838: [Epic] Test Distribution and AutoDistribution features from core
Verify PublishedMetadata and pass_through content serve from PublicationDistribution
Assuming you have a FileDistribution whose publication points to a Publication with PublishedMetadata and pass_through=True as you would get from test https://pulp.plan.io/issues/4839.
1. Request the repo's manifest file (which is PublishedMetadata) and assert the contents are correct.
2. Request a content unit from the repo (pass_through=True testing) and assert the contents are correct.