Feature or Bugfix

• Test coverage

Purpose

• Provides test coverage for implementations attempting to resolve linkcheck builder: begin using requests.Session functionality during linkchecking #11324.

Detail

• Configure an artificially-limited connection pool by patching requests.Session.get_adapter
• Create a multi-item linkcheck workload
• Consume one item at a time from the workload from separate threads
• Ensure that all items were consumed and that no timeouts occurred

Relates

• Prepares for linkcheck builder: begin using requests.Session functionality during linkchecking #11324.
• Planned from Flaky unit test: test_auth_header_uses_first_match #11348 (comment).