Contents

# FakeFS::SpecHelpers provides a simple macro for RSpec example groups to turn FakeFS on and off.
# To use it simply require 'fakefs/spec_helpers', then include FakeFS::SpecHelpers into any
# example groups that you wish to use FakeFS in. For example:
#
#   require 'fakefs/spec_helpers'
#
#   describe "Some specs that deal with files" do
#     include FakeFS::SpecHelpers
#     ...
#   end
#
# By default, including FakeFS::SpecHelpers will run for each example inside a describe block.
# If you want to turn on FakeFS one time only for all your examples, you will need to
# include FakeFS::SpecHelpers::All.
#
# Alternatively, you can include FakeFS::SpecHelpers in all your example groups using RSpec's
# configuration block in your spec helper:
#
#   require 'fakefs/spec_helpers'
#
#   RSpec.configure do |config|
#     config.include FakeFS::SpecHelpers
#   end
#
# If you do the above then use_fakefs will be available in all of your example groups.
#
require 'fakefs/safe'

module FakeFS
  def use_fakefs(describe_block, opts)
    describe_block.before opts[:with] do
      FakeFS.activate!
    end

    describe_block.after opts[:with] do
      FakeFS.deactivate!
      FakeFS::FileSystem.clear if opts[:with] == :each
    end
  end

  module SpecHelpers
    include ::FakeFS

    def self.extended(example_group)
      example_group.use_fakefs(example_group, :with => :each)
    end

    def self.included(example_group)
      example_group.extend self
    end

    module All
      include ::FakeFS

      def self.extended(example_group)
        example_group.use_fakefs(example_group, :with => :all)
      end

      def self.included(example_group)
        example_group.extend self
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
fakefs-0.5.4	lib/fakefs/spec_helpers.rb
fakefs-0.5.3	lib/fakefs/spec_helpers.rb