Homebrew/homebrew — pull request #28053 by dancek (2014-04-01 21:43:35+00:00)
Title: curl: add a test (fetches its own tarball)

Fetch the stable tarball and verify its checksum against the stable checksum in formula. This should work, but please tell me if it's not a good idea!

Granted, this requires a network connection. Assuming the test is run after `brew install`, network should be available.