Class: Opal::RSpec::RakeTask

Inherits:
Object
  • Object
show all
Includes:
Rake::DSL
Defined in:
lib/opal/rspec/rake_task.rb

Constant Summary collapse

RUNNER = 
File.expand_path('../../../../vendor/spec_runner.js', __FILE__)
PORT = 
9999
URL = 
"http://localhost:#{PORT}/"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name = 'opal:rspec', &block) ⇒ RakeTask

Returns a new instance of RakeTask.



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# File 'lib/opal/rspec/rake_task.rb', line 110

def initialize(name = 'opal:rspec', &block)
  desc 'Run opal specs in phantomjs/node'
  task name do
    sprockets_env = Opal::RSpec::SprocketsEnvironment.new
    main = 'opal/rspec/sprockets_runner'
    current_task = self

    config_block = -> *args {
      args.insert(1, current_task)
      block.call *args if block

      sprockets_env.spec_pattern = current_task.pattern if current_task.pattern
      sprockets_env.spec_exclude_pattern = current_task.exclude_pattern
      sprockets_env.spec_files = current_task.files
      sprockets_env.default_path = current_task.default_path if current_task.default_path
      raise 'Cannot supply both a pattern and files!' if current_task.files and current_task.pattern
      sprockets_env.add_spec_paths_to_sprockets
      Opal::Config.arity_check_enabled = arity_checking?
    }

    case runner
    when :node then launch_node(sprockets_env, main, &config_block)
    when :phantom then launch_phantom(sprockets_env, main, &config_block)
    else raise "unknown runner type: #{runner.inspect}"
    end
  end
end

Instance Attribute Details

#arity_checking ⇒ Object

Returns the value of attribute arity_checking.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def arity_checking
  @arity_checking
end

#default_path ⇒ Object

Returns the value of attribute default_path.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def default_path
  @default_path
end

#exclude_pattern ⇒ Object

Returns the value of attribute exclude_pattern.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def exclude_pattern
  @exclude_pattern
end

#files ⇒ Object

Returns the value of attribute files.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def files
  @files
end

#pattern ⇒ Object

Returns the value of attribute pattern.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def pattern
  @pattern
end

#runner ⇒ Object

Returns the value of attribute runner.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def runner
  @runner
end

#timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/opal/rspec/rake_task.rb', line 14

def timeout
  @timeout
end

Instance Method Details

#arity_checking? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/opal/rspec/rake_task.rb', line 16

def arity_checking?
  setting = @arity_checking || :enabled
  setting == :enabled
end

#launch_node(sprockets, main, &config_block) ⇒ Object 



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# File 'lib/opal/rspec/rake_task.rb', line 70

def launch_node(sprockets, main, &config_block)
  Opal.paths.each { |p| sprockets.append_path(p) } # Opal::Server does this

  config_block.call sprockets

  asset = sprockets[main]
  raise "Cannot find asset: #{main} in #{sprockets.inspect}" if asset.nil?

  Tempfile.create [main.to_s.gsub(/\W/, '.'), '.opal_rspec.js'] do |file|
    File.write file.path, asset.to_s + Opal::Sprockets.load_asset(main)

    command = "node #{file.path} 2>&1"
    puts "~~> Running #{command}"
    system command
    exit 1 unless $?.success?
  end
end

#launch_phantom(sprockets_env, main, &config_block) ⇒ Object 



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# File 'lib/opal/rspec/rake_task.rb', line 21

def launch_phantom(sprockets_env, main, &config_block)
  app = Opal::Server.new(sprockets: sprockets_env) { |server|
    server.main = main
    server.debug = false
    config_block.call(server)
  }

  server = Thread.new do
    require 'rack'
    require 'webrick'
    Thread.current.abort_on_exception = true
    Rack::Server.start(
      :app => app,
      :Port => PORT,
      :AccessLog => [],
      :Logger => WEBrick::Log.new("/dev/null"),
    )
  end

  wait_for_server

  version_output = begin
    `phantomjs -v`.strip
  rescue
    warn 'Could not find phantomjs command on path!'
    exit 1
  end

  if version_output.to_f < 2
    warn "PhantomJS >= 2.0 is required but version #{version_output} is installed!"
    exit 1
  end

  begin
    command_line = %Q{phantomjs #{RUNNER} "#{URL}"#{@timeout ? " #{@timeout}" : ''}}
    puts "Running #{command_line}"
    system command_line
    success = $?.success?

    exit 1 unless success
  ensure
    server.kill
  end
end

#wait_for_server ⇒ Object 



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# File 'lib/opal/rspec/rake_task.rb', line 88

def wait_for_server
  # avoid retryable dependency
  tries = 0
  up = false
  uri = URI(URL)
  while tries < 4 && !up
    tries += 1
    sleep 0.1
    begin
      # Using TCPSocket, not net/http open because executing the HTTP GET / will incur a decent delay just to check if the server is up
      # in order to better communicate to the user what is going on, save the actual HTTP request for the phantom/node run
      # the only objective here is to see if the Rack server has started
      socket = TCPSocket.new uri.hostname, uri.port
      up = true
      socket.close
    rescue Errno::ECONNREFUSED
      # server not up yet
    end
  end
  raise 'Tried 4 times to contact Rack server and not up!' unless up
end