ts_apache_spec.rb

require 'minitest/autorun'

# spec_helper.rb
require 'open3'

class Command
  attr_reader :stdin, :stdout, :stderr, :thread

  def initialize(cmd)
    @stdin, @stdout, @stderr, @thread = Open3.popen3 cmd
  end

  def successful?
    thread.value.to_i == 0
  end

  def must_succeed
    successful?.must_equal true
  end

  def grep(reg)
    @stdout.lines.map(&:chomp).grep(reg)
  end
end

def command(cmd)
  Command.new(cmd)
end

describe 'custom apache setup' do
  it "should install the Debian style apache helpers" do
    command('which a2enmod').must_succeed
    command('which a2ensite').must_succeed
  end

  %w[ alias auth_basic authn_file authz_default authz_groupfile authz_host
      authz_user autoindex cache cgi deflate dir env headers mime negotiation
      proxy_balancer proxy_http proxy rewrite setenvif ssl status ].each do |mod|

    it "should install the necessary apache module `#{mod}'" do
      File.exist?("/etc/apache2/mods-enabled/#{mod}.load").must_equal true
    end
  end

  it "should install exactly the packages we want" do
    command("dpkg -l | awk '{print $2}'").grep(/apache/).sort.must_equal %w[
      apache2             apache2-mpm-prefork
      apache2-prefork-dev apache2-utils
      apache2.2-common    apache2.2-bin ].sort
  end

  it "should have the apache service running" do
    command('service apache2 status').must_be :=~, /is running/
  end

  it 'should contain custom configuration' do
    apache_conf = File.read('/etc/apache2/apache2.conf')
    [
      /^\s*KeepAliveTimeout\s2\s*$/,
      /ServerTokens Prod/
    ].each do |regexp|
      apache_conf.must_be :=~, regexp
    end
  end
end