jasmine/lib/jasmine-ruby/jasmine_runner.rb

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require 'socket'
require 'erb'
require 'json'
module Jasmine
def self.root
File.expand_path(File.join(File.dirname(__FILE__), '../../jasmine'))
end
# this seemingly-over-complex method is necessary to get an open port on at least some of our Macs
def self.open_socket_on_unused_port
infos = Socket::getaddrinfo("localhost", nil, Socket::AF_UNSPEC, Socket::SOCK_STREAM, 0, Socket::AI_PASSIVE)
families = Hash[*infos.collect { |af, *_| af }.uniq.zip([]).flatten]
return TCPServer.open('0.0.0.0', 0) if families.has_key?('AF_INET')
return TCPServer.open('::', 0) if families.has_key?('AF_INET6')
return TCPServer.open(0)
end
def self.find_unused_port
socket = open_socket_on_unused_port
port = socket.addr[1]
socket.close
port
end
def self.server_is_listening_on(hostname, port)
require 'socket'
begin
socket = TCPSocket.open(hostname, port)
rescue Errno::ECONNREFUSED
return false
end
socket.close
true
end
def self.wait_for_listener(port, name = "required process", seconds_to_wait = 10)
time_out_at = Time.now + seconds_to_wait
until server_is_listening_on "localhost", port
sleep 0.1
puts "Waiting for #{name} on #{port}..."
raise "#{name} didn't show up on port #{port} after #{seconds_to_wait} seconds." if Time.now > time_out_at
end
end
def self.kill_process_group(process_group_id, signal="TERM")
Process.kill signal, -process_group_id # negative pid means kill process group. (see man 2 kill)
end
def self.cachebust(files, root_dir="", replace=nil, replace_with=nil)
require 'digest/md5'
files.collect do |file_name|
real_file_name = replace && replace_with ? file_name.sub(replace, replace_with) : file_name
begin
digest = Digest::MD5.hexdigest(File.read("#{root_dir}#{real_file_name}"))
rescue
digest = "MISSING-FILE"
end
"#{file_name}?cachebust=#{digest}"
end
end
class RunAdapter
def initialize(spec_files_or_proc, options = {})
@spec_files_or_proc = Jasmine.files(spec_files_or_proc) || []
@jasmine_files = Jasmine.files(options[:jasmine_files]) || [
"/__JASMINE_ROOT__/lib/" + File.basename(Dir.glob("#{Jasmine.root}/lib/jasmine*.js").first),
"/__JASMINE_ROOT__/lib/TrivialReporter.js",
"/__JASMINE_ROOT__/lib/json2.js",
"/__JASMINE_ROOT__/lib/consolex.js",
]
@stylesheets = ["/__JASMINE_ROOT__/lib/jasmine.css"] + (Jasmine.files(options[:stylesheets]) || [])
@spec_helpers = Jasmine.files(options[:spec_helpers]) || []
end
def call(env)
run
end
def run
stylesheets = @stylesheets
spec_helpers = @spec_helpers
spec_files = @spec_files_or_proc
jasmine_files = @jasmine_files
jasmine_files = jasmine_files.call if jasmine_files.respond_to?(:call)
css_files = @stylesheets
body = ERB.new(File.read(File.join(File.dirname(__FILE__), "run.html"))).result(binding)
[
200,
{ 'Content-Type' => 'text/html' },
body
]
end
end
class Redirect
def initialize(url)
@url = url
end
def call(env)
[
302,
{ 'Location' => @url },
[]
]
end
end
class JsAlert
def call(env)
[
200,
{ 'Content-Type' => 'application/javascript' },
"document.write('<p>Couldn\\'t load #{env["PATH_INFO"]}!</p>');"
]
end
end
class FocusedSuite
def initialize(spec_files_or_proc, options)
@spec_files_or_proc = Jasmine.files(spec_files_or_proc) || []
@options = options
end
def call(env)
spec_files = @spec_files_or_proc
matching_specs = spec_files.select {|spec_file| spec_file =~ /#{Regexp.escape(env["PATH_INFO"])}/ }.compact
if !matching_specs.empty?
run_adapter = Jasmine::RunAdapter.new(matching_specs, @options)
run_adapter.run
else
[
200,
{ 'Content-Type' => 'application/javascript' },
"document.write('<p>Couldn\\'t find any specs matching #{env["PATH_INFO"]}!</p>');"
]
end
end
end
class SimpleServer
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def self.start(port, root_path, spec_files_or_proc, options = {})
require 'thin'
config = {
'/__suite__' => Jasmine::FocusedSuite.new(spec_files_or_proc, options),
'/run.html' => Jasmine::Redirect.new('/'),
'/' => Jasmine::RunAdapter.new(spec_files_or_proc, options)
}
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if (options[:mappings])
options[:mappings].each do |from, to|
config[from] = Rack::File.new(to)
end
end
config["/__JASMINE_ROOT__"] = Rack::File.new(Jasmine.root)
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file_serve_config = {
'/' => Rack::File.new(root_path)
}
app = Rack::Cascade.new([
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Rack::URLMap.new(file_serve_config),
Rack::URLMap.new(config),
JsAlert.new
])
begin
Thin::Server.start('0.0.0.0', port, app)
rescue RuntimeError => e
raise e unless e.message == 'no acceptor'
raise RuntimeError.new("A server is already running on port #{port}")
end
end
end
class SimpleClient
def initialize(selenium_host, selenium_port, selenium_browser_start_command, http_address)
require 'selenium/client'
@driver = Selenium::Client::Driver.new(
selenium_host,
selenium_port,
selenium_browser_start_command,
http_address
)
@http_address = http_address
end
def tests_have_finished?
@driver.get_eval("window.jasmine.getEnv().currentRunner.finished") == "true"
end
def connect
@driver.start
@driver.open("/")
end
def disconnect
@driver.stop
end
def run
until tests_have_finished? do
sleep 0.1
end
puts @driver.get_eval("window.results()")
failed_count = @driver.get_eval("window.jasmine.getEnv().currentRunner.results().failedCount").to_i
failed_count == 0
end
def eval_js(script)
escaped_script = "'" + script.gsub(/(['\\])/) { '\\' + $1 } + "'"
result = @driver.get_eval(" try { eval(#{escaped_script}, window); } catch(err) { window.eval(#{escaped_script}); }")
JSON.parse("[#{result}]")[0]
end
end
class Runner
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def initialize(selenium_jar_path, root_path, spec_files, options={})
@root_path = root_path
@selenium_jar_path = selenium_jar_path
@spec_files = spec_files
@options = options
@browser = options[:browser] ? options[:browser].delete(:browser) : 'firefox'
@selenium_pid = nil
@jasmine_server_pid = nil
end
def start
start_servers
@client = Jasmine::SimpleClient.new("localhost", @selenium_server_port, "*#{@browser}", "http://localhost:#{@jasmine_server_port}/")
@client.connect
end
def stop
@client.disconnect
stop_servers
end
def start_servers
@jasmine_server_port = Jasmine::find_unused_port
@selenium_server_port = Jasmine::find_unused_port
@selenium_pid = fork do
Process.setpgrp
exec "java -jar #{@selenium_jar_path} -port #{@selenium_server_port} > /dev/null 2>&1"
end
puts "selenium started. pid is #{@selenium_pid}"
@jasmine_server_pid = fork do
Process.setpgrp
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Jasmine::SimpleServer.start(@jasmine_server_port, @root_path, @spec_files, @options)
exit! 0
end
puts "jasmine server started. pid is #{@jasmine_server_pid}"
Jasmine::wait_for_listener(@selenium_server_port, "selenium server")
Jasmine::wait_for_listener(@jasmine_server_port, "jasmine server")
end
def stop_servers
puts "shutting down the servers..."
Jasmine::kill_process_group(@selenium_pid) if @selenium_pid
Jasmine::kill_process_group(@jasmine_server_pid) if @jasmine_server_pid
end
def run
begin
start
puts "servers are listening on their ports -- running the test script..."
tests_passed = @client.run
ensure
stop
end
return tests_passed
end
def eval_js(script)
@client.eval_js(script)
end
end
def self.files(f)
result = f
result = result.call if result.respond_to?(:call)
result
end
end