Class: Selenium::WebDriver::Firefox::Launcher

Inherits:
Object
  • Object
show all
Defined in:
lib/selenium/webdriver/firefox/launcher.rb

Constant Summary collapse

SOCKET_LOCK_TIMEOUT = 
45
STABLE_CONNECTION_TIMEOUT = 
60

Instance Method Summary collapse

Constructor Details

#initialize(binary, port, profile = nil) ⇒ Launcher

Returns a new instance of Launcher.

Raises:



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 11

def initialize(binary, port, profile = nil)
  @binary = binary
  @port   = Integer(port)

  raise Error::WebDriverError, "invalid port: #{@port}" if @port < 1

  if profile.kind_of? Profile
    @profile = profile
  else
    @profile_name = profile
    @profile = nil
  end

  @host = "127.0.0.1"
end

Instance Method Details

#assert_profile ⇒ Object

Raises:



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 98

def assert_profile
  raise Error::WebDriverError, "must create_profile first" unless @profile && @profile_dir
end

#connect_until_stable ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 72

def connect_until_stable
  poller = SocketPoller.new(@host, @port, STABLE_CONNECTION_TIMEOUT)
  unless poller.success?
    raise Error::WebDriverError, "unable to obtain stable firefox connection in #{STABLE_CONNECTION_TIMEOUT} seconds"
  end
end

#create_profile ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 53

def create_profile
  fetch_profile if @profile.nil?

  @profile.add_webdriver_extension
  @profile.port = @port
  @profile_dir = @profile.layout_on_disk
end

#fetch_profile ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 87

def fetch_profile
  if @profile_name
    @profile = Profile.from_name @profile_name
    if @profile.nil?
      raise Error::WebDriverError, "unable to find profile named: #{@profile_name.inspect}"
    end
  else
    @profile = Profile.new
  end
end

#find_free_port ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 43

def find_free_port
  port = @port

  until free_port?(port)
    port += 1
  end

  @port = port
end

#free_port?(port) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 79

def free_port?(port)
  s = TCPServer.new(@host, port)
  s.close
  true
rescue SocketError, Errno::EADDRINUSE
  false
end

#launch ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 31

def launch
  socket_lock.locked do
    find_free_port
    create_profile
    start_silent_and_wait
    start
    connect_until_stable
  end

  self
end

#socket_lock ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 102

def socket_lock
  @socket_lock ||= SocketLock.new(@port - 1, SOCKET_LOCK_TIMEOUT)
end

#start ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 61

def start
  assert_profile
  @binary.start_with @profile, @profile_dir
end

#start_silent_and_wait ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 66

def start_silent_and_wait
  assert_profile
  @binary.start_with @profile, @profile_dir, "--silent"
  @binary.wait
end

#url ⇒ Object 



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# File 'lib/selenium/webdriver/firefox/launcher.rb', line 27

def url
  "http://#{@host}:#{@port}/hub"
end