#!/usr/bin/env ruby
# Runs the test suite against a local server spawned automatically in a
# thread. After tests are done, the server is shut down.
#
# If filename arguments are given, only those files are run. If arguments given
# are not filenames, they are taken as words that filter the list of files to run.
#
# Examples
#
#   $ script/test
#   $ script/test test/env_test.rb
#   $ script/test excon typhoeus

require 'rubygems'
require 'bundler'
begin
  Bundler.setup
rescue Bundler::GemNotFound
  $stderr.print "Error: "
  $stderr.puts $!.message
  warn "Run `bundle install` to install missing gems."
  exit 1
end

$VERBOSE = true

host      = '127.0.0.1'
logfile   = 'log/test.log'
test_glob = 'test/**/*_test.rb'

require 'fileutils'
FileUtils.mkdir_p 'log'

# find available port
require 'socket'
port = begin
  server = TCPServer.new(host, 0)
  server.addr[1]
ensure
  server.close if server
end

server = nil

# start test server in a separate thread
thread = Thread.new do
  old_verbose, $VERBOSE = $VERBOSE, nil
  begin
    require File.expand_path('../../test/live_server', __FILE__)
  ensure
    $VERBOSE = old_verbose
  end
  require 'webrick'
  log_io = File.open logfile, 'w'
  log_io.sync = true
  webrick_opts = {
    :Port => port, :Logger => WEBrick::Log::new(log_io),
    :AccessLog => [[log_io, "[%{X-Faraday-Adapter}i] %m  %U  ->  %s %b"]]
  }
  Rack::Handler::WEBrick.run(Faraday::LiveServer, webrick_opts) {|serv| server = serv }
end

# find files to test
test_files = Dir[test_glob]
if ARGV.any?
  all_files, test_files = test_files, []
  args, extra_args = ARGV, []
  if idx = args.index('--')
     extra_args = args[(idx+1)..-1]
     args = args[0, idx]
  end
  for arg in args
    re = /(\b|_)#{arg}(\b|_)/
    test_files.concat all_files.select { |f| f =~ re }
  end
  test_files.concat extra_args
end

require 'net/http'
conn = Net::HTTP.new host, port
conn.open_timeout = conn.read_timeout = 0.05

# test if test server is accepting requests
responsive = lambda { |path|
  begin
    res = conn.start { conn.get(path) }
    res.is_a?(Net::HTTPSuccess)
  rescue Errno::ECONNREFUSED, Errno::EBADF, Timeout::Error
    false
  end
}

require 'timeout'
Timeout.timeout 40 do
  # block until test server is ready
  thread.join 0.05 until responsive.call('/echo')
end

ENV['LIVE'] = "http://#{host}:#{port}"
ok = system 'ruby', '-Ilib:test', '-S', 'testrb', *test_files

server.respond_to?(:stop!) ? server.stop! : server.stop
thread.join

exit 1 unless ok