require "spec_helper"

describe "::DRbCommandLine", :ruby => "!jruby" do
  let(:config) { RSpec::Core::Configuration.new }
  let(:out)    { StringIO.new }
  let(:err)    { StringIO.new }

  def config_options(argv=[])
    options = RSpec::Core::ConfigurationOptions.new(argv)
    options.parse_options
    options
  end

  def drb_command_line(args)
    RSpec::Core::DRbCommandLine.new(config_options(args))
  end

  def run_with(args)
    drb_command_line(args).run(err, out)
  end

  context "without server running" do
    it "prints error" do
      run_with []

      err.rewind
      err.read.should =~ /No DRb server is running/
    end

    it "returns false" do
      result = run_with []
      result.should be_false
    end
  end

  describe "--drb-port" do
    def with_RSPEC_DRB_set_to(val)
      original = ENV['RSPEC_DRB']
      ENV['RSPEC_DRB'] = val
      begin
        yield
      ensure
        ENV['RSPEC_DRB'] = original
      end
    end

    context "without RSPEC_DRB environment variable set" do
      it "defaults to 8989" do
        with_RSPEC_DRB_set_to(nil) do
          drb_command_line([]).drb_port.should == 8989
        end
      end

      it "sets the DRb port" do
        with_RSPEC_DRB_set_to(nil) do
          drb_command_line(["--drb-port", "1234"]).drb_port.should == 1234
          drb_command_line(["--drb-port", "5678"]).drb_port.should == 5678
        end
      end
    end

    context "with RSPEC_DRB environment variable set" do

      context "without config variable set" do
        it "uses RSPEC_DRB value" do
          with_RSPEC_DRB_set_to('9000') do
            drb_command_line([]).drb_port.should == "9000"
          end
        end
      end

      context "and config variable set" do
        it "uses configured value" do
          with_RSPEC_DRB_set_to('9000') do
            drb_command_line(%w[--drb-port 5678]).drb_port.should == 5678
          end
        end
      end
    end
  end

  context "with server running" do
    class ::FakeDrbSpecServer
      def self.run(argv, err, out)
        options = RSpec::Core::ConfigurationOptions.new(argv)
        options.parse_options
        RSpec::Core::CommandLine.new(options, RSpec::Core::Configuration.new).run(err, out)
      end
    end

    def dummy_spec_filename
      @dummy_spec_filename ||= File.expand_path(File.dirname(__FILE__)) + "/_dummy_spec#{@drb_example_file_counter}.rb"
    end

    before(:all) do
      @drb_port = 8990
      @drb_example_file_counter = 0
      DRb::start_service("druby://127.0.0.1:#{@drb_port}", ::FakeDrbSpecServer)
    end

    before(:each) do
      @drb_example_file_counter += 1
      create_dummy_spec_file
    end

    after(:each) do
      File.delete(dummy_spec_filename)
    end

    after(:all) do
      DRb::stop_service
    end

    def create_dummy_spec_file
      File.open(dummy_spec_filename, 'w') do |f|
        f.write %q{
          describe "DUMMY CONTEXT for 'DrbCommandLine with -c option'" do
            it "should be output with green bar" do
              true.should be_true
            end

            it "should be output with red bar" do
              raise("I want to see a red bar!")
            end
          end
        }
      end
    end

    it "returns true" do
      err, out = StringIO.new, StringIO.new
      result = drb_command_line(["--drb-port", @drb_port.to_s]).run(err, out)
      result.should be_true
    end

    it "integrates via Runner.new.run" do
      err, out = StringIO.new, StringIO.new
      result = RSpec::Core::Runner.run(%W[ --drb --drb-port #{@drb_port} #{dummy_spec_filename}], err, out)
      result.should be_true
    end

    def run_spec_via_druby
      run_with([dummy_spec_filename, "--colour", "--drb-port", @drb_port.to_s])
      out.rewind
      out.read
    end

    it "outputs green colorized text when running with --colour option" do
      pending "figure out a way to properly sandbox this"
      run_spec_via_druby.should =~ /\e\[32m/m
    end

    it "outputs red colorized text when running with -c option" do
      pending "figure out a way to properly sandbox this"
      run_spec_via_druby.should =~ /\e\[31m/m
    end
  end

end