puppet_rspec.rb

require 'autotest'
require 'autotest/rspec'

Autotest.add_hook :initialize do |at|
    at.clear_mappings

    # the libraries under lib/puppet
    at.add_mapping(%r%^lib/puppet/(.*)\.rb$%) { |filename, m|
        at.files_matching %r!spec/(unit|integration)/#{m[1]}.rb!
    }

    # the actual spec files themselves
    at.add_mapping(%r%^spec/(unit|integration)/.*\.rb$%) { |filename, _|
        filename
    }

    # force a complete re-run for all of these:

    # main puppet lib
    at.add_mapping(%r!^lib/puppet\.rb$!) { |filename, _|
        at.files_matching %r!spec/(unit|integration)/.*\.rb!
    }

    # the spec_helper
    at.add_mapping(%r!^spec/spec_helper\.rb$!) { |filename, _|
        at.files_matching %r!spec/(unit|integration)/.*\.rb!
    }

    # the puppet test libraries
    at.add_mapping(%r!^test/lib/puppettest/.*!) { |filename, _|
        at.files_matching %r!spec/(unit|integration)/.*\.rb!
    }

        # the puppet spec libraries
    at.add_mapping(%r!^spec/lib/spec.*!) { |filename, _|
        at.files_matching %r!spec/(unit|integration)/.*\.rb!
    }

        # the monkey patches for rspec
    at.add_mapping(%r!^spec/lib/monkey_patches/.*!) { |filename, _|
        at.files_matching %r!spec/(unit|integration)/.*\.rb!
    }
end

# a place for overrides when necessary.
class Autotest::PuppetRspec < Autotest::Rspec
    def spec_commands
        ENV["AUTOTEST"] = "true"
        ENV["PATH"].split(File::PATH_SEPARATOR).collect { |dir| File.join(dir, "spec") }
    end
end