twitter/scalding — pull request #30 by mjahr (2012-03-14 18:37:53+00:00)
Title: Implemented Mode.fileExists.

Implemented Mode.fileExists to facilitate checking for files across
filesystems in different modes. Added support to test modes, and
JobTest, for registering mock filenames. Minor refactoring of JobTest
to improve code reuse across run(), runWithoutNext(), and runHadoop().