from_log_routing_spec.rb

# -*- encoding : utf-8 -*-
require "spec_helper"
require "set"

# Reads requests from test/fixtures/logs/requests.log and builds examples that
# test if the requests are routable.
#
# The syntax it understands is (same as `haproxy.log`):
#     {www.skroutz.gr} "POST /shops/add_review/984?some=other"
#
# Remember that all PUT and DELETE methods are logged as POST in the logs prior
# to hitting the rails app.  They will fail these tests.
#
# @note To disable these tests just leave requests.log empty.  Remember to never
#   commit it unless it is empty.
#
# @note To populate requests.log,  use something like:
#   `grep /shops/ ~/path/to.logs.txt | shuf -n 1000 > test/fixtures/logs/requests.log`
describe "routing" do
  # We expect requests.log to not be HUGE,  else we fill fill up the memory
  # pretty quick.  This script was tested with ~10000 lines in the requests.log
  # and performed fine.
  file = File.open('test/fixtures/logs/requests.log')
  lines = file.read.split("\n")
  method_paths = Set.new

  lines.each do |line|
    domain, method, path, _ =
      *line.scan(/^\{([^\}]+)\} "(\w+) ([^\?]+)(\?[^"]*)?"/).flatten

    # Skip known public folders and files
    next if path =~ %r{^/(images|stylesheets|sitemaps)/}i
    next if path =~ %r{^/(crossdomain.xml|favicon.ico|robots\.txt)$}

    # Skip stupid PHP exploit attempts
    next if path =~ %r{\.php$}

    # Fix path prefices
    path = "/apiv2" + path if domain == 'apiv2.skroutz.gr' && path !~ /^\/apiv2/

    unless method_paths.include?(method+path)
      it "recognizes #{line}" do
        {method.downcase => path}.should be_routable
      end

      method_paths << method+path
    end
  end
end