It seems that it’s not well publicized, but if you want to run your RSpec files with
autospec instead. It looks inside the spec/ directory for files named “*_spec.rb” by default for specs.
autospec is part of the RSpec gem, and basically just sets up the proper environment and then shells out to autotest.
Also, if your files in lib/ match up with specs in spec/,
autospec will automatically re-run your specs for changed files in lib/ on save. So if you have lib/foo/bar.rb,
autospec will re-run lib/foo/bar_spec.rb when you save bar.rb.