```ruby
#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2008 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

$: << File.join(File.dirname(__FILE__), '..', '..', 'lib')

require 'spec/expectations'
require 'mixlib/log'
require 'tmpdir'
require 'stringio'

class MyWorld
  def initialize
    @tmpdir = File.join(Dir.tmpdir, "mixlib_log")
    @output = ''
    @output_io = StringIO.new(@output)
    Logit.init(@output_io)
  end
end

World do
  MyWorld.new
end

Before do
  system("mkdir -p #{@tmpdir}")
end

After do
  system("rm -rf #{@tmpdir}")
end

```

Fix obsolete require statement for rspec
user
```ruby
#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2008 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

$: << File.join(File.dirname(__FILE__), '..', '..', 'lib')

require 'rspec/expectations'
require 'mixlib/log'
require 'tmpdir'
require 'stringio'

class MyWorld
  def initialize
    @tmpdir = File.join(Dir.tmpdir, "mixlib_log")
    @output = ''
    @output_io = StringIO.new(@output)
    Logit.init(@output_io)
  end
end

World do
  MyWorld.new
end

Before do
  system("mkdir -p #{@tmpdir}")
end

After do
  system("rm -rf #{@tmpdir}")
end

```
assistant