```ruby
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../../../shared/file/socket', __FILE__)
require 'socket'

describe "File.socket?" do
  it_behaves_like :file_socket, :socket?, File
end

describe "File.socket?" do
  it "returns false if file does not exist" do
    File.socket?("I_am_a_bogus_file").should == false
  end

  it "returns false if the file is not a socket" do
    filename = tmp("i_exist")
    touch(filename)

    File.socket?(filename).should == false

    rm_r filename
  end

  it "returns true if the file is a socket" do
    filename = tmp("i_am_a_socket")
    server = UNIXServer.new filename
    begin
      File.socket?(filename).should == true
    ensure
      server.close
      rm_r filename
    end
  end
end
```

Add proper before/after blocks for a File.socket? spec
user
```ruby
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../../../shared/file/socket', __FILE__)
require 'socket'

describe "File.socket?" do
  it_behaves_like :file_socket, :socket?, File
end

describe "File.socket?" do
  it "returns false if file does not exist" do
    File.socket?("I_am_a_bogus_file").should == false
  end

  it "returns false if the file is not a socket" do
    filename = tmp("i_exist")
    touch(filename)

    File.socket?(filename).should == false

    rm_r filename
  end
end

describe "File.socket?" do
  before :each do
    @name = tmp("i_am_a_socket")
    @server = UNIXServer.new @name
  end

  after :each do
    @server.close
    rm_r @name
  end

  it "returns true if the file is a socket" do
    File.socket?(@name).should == true
  end
end
```
assistant